Author Topic: Thermal Imaging Gallery II  (Read 22140 times)

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Offline Spirit532

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Thermal Imaging Gallery II
« on: May 21, 2019, 08:34:15 am »
Since the first thermal imaging gallery thread broke a few times, it was suggested that another one is started.

If you're sharing something, please add some info to your post, like this:
  • Subject: Hand
  • Camera: FLIR T440bx
  • Lens: 18mm
  • Original resolution: 320x240
  • Camera mods: None(but for example - pano head, macro adapter, peltier cooling, etc)
  • Image manipulation: JoeC's image decoder, TIFF, then upscaled with waifu2x with some denoising. Compressed to tiny JPEG.
« Last Edit: May 21, 2019, 08:50:00 am by Spirit532 »
 
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #1 on: May 21, 2019, 10:04:44 am »
Thanks for doing this. Can I add a plea that when quoting a post with an embedded image, we don't re-post the image itself? It's not hard to edit out the IMG tags from the text you're quoting.
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Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #2 on: June 18, 2019, 07:08:00 pm »
TE-Q1

Grass, dirt and my leg on a sunny summer day.


Copper lizard in the shadow of a tree. Warm summer day. Ectothermic animals don't show up well in IR.


Horses eating grass sunny day. Notice the fabric on the right horse is transparent in IR.
« Last Edit: June 18, 2019, 07:13:26 pm by Conure »
 

Offline bugi

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Re: Thermal Imaging Gallery II
« Reply #3 on: June 19, 2019, 08:40:16 am »
Horses eating grass sunny day. Notice the fabric on the right horse is transparent in IR.
Transparent?... or has the horse's body warmed the fabric where it touches? Considering that where the fabric hangs more loose (around legs) it isn't as bright.
 

Offline jumpy9734

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Re: Thermal Imaging Gallery II
« Reply #4 on: June 29, 2019, 06:41:18 pm »
Camera : Seek Thermal Compact (2017 version)
Sensor Resolution : 206x156

Ironing



Cooking Stove



Frying Pan

 

Offline Philtron

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Re: Thermal Imaging Gallery II
« Reply #5 on: July 05, 2019, 11:07:16 pm »
Flir E4 320X240 pix hacked

The cat wich let me live in his house. (E4 before the mod)


hoof (i was surprised by the temp gradient)


Also a surprise, i thought gassas do not radiate much.


You can see the bricks in the wall.  :o



 

Offline bap2703

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Re: Thermal Imaging Gallery II
« Reply #6 on: July 06, 2019, 10:28:51 am »
When you visually see gas it's most probably not really a gas that you are seeing but an aerosol. Most commonly water droplets or soot.

Both radiate pretty well in infrared ;)

In addition some gases do radiate themselves but that would be weak next to the aerosols.
 

Offline ArsenioDev

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Re: Thermal Imaging Gallery II
« Reply #7 on: July 06, 2019, 10:54:03 pm »
Raytheon BST core
Resolution: 320*240
First image is my main computer crunching some numbers and encoding video with the side panel off
second is my youngest brother holding one of the labcats
Image processing chain is CVBS-HDMI converter then capped in an Elgato cap card, no postprocessing.
 

Offline Mr. Scram

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Re: Thermal Imaging Gallery II
« Reply #8 on: July 06, 2019, 11:24:43 pm »
TE-Q1

Grass, dirt and my leg on a sunny summer day.

Copper lizard in the shadow of a tree. Warm summer day. Ectothermic animals don't show up well in IR.

Horses eating grass sunny day. Notice the fabric on the right horse is transparent in IR.
I always suspected cold-blooded animals wouldn't be visible, but it's nice to have it actually confirmed.
 

Offline Vipitis

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Re: Thermal Imaging Gallery II
« Reply #9 on: July 23, 2019, 03:16:41 pm »
screenshot of a framegrab from the analog video signal of a MIRICLE 110K-35 which outputs AGC currently. The grab and capture takes away the phenomenal quality these 35µm pixels have. I can't wait to get it working digitally and to put the 32mm f/1 onto the bigger sensor.

working on it today.

*the sensor resolution is 384x288, the way I obtained the images isn't true 1:1 pixels
 

Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #10 on: July 25, 2019, 07:51:10 pm »
TE-Q1
Boat

 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #11 on: July 26, 2019, 12:11:58 pm »
Castelo de Santa Cruz, A Coruña, Spain.

Therm-App Pro, 35mm lens, ThermViewer, MS Image Composite Editor, Paintshop Pro. These images are one-third size; the thumbnail is the full size image.


[attachimg=2]


[attachimg=4]
« Last Edit: July 26, 2019, 12:19:57 pm by Ultrapurple »
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Offline jumpy9734

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Re: Thermal Imaging Gallery II
« Reply #12 on: July 30, 2019, 08:37:15 pm »
Had some free time today so i was able to take the camera out for a "spin"  ;D

Camera : Seek Thermal Compact (2017 version)
Sensor Resolution : 206 x 156

Car



Building



Trees, car and building



Air exhaust



Air exhaust 2



Building, car and trees 2



Tower



Buildings landscape



Building



Side of Building



Water Tap


« Last Edit: July 30, 2019, 09:10:29 pm by jumpy9734 »
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #13 on: August 02, 2019, 01:59:50 pm »
2.5mm DC connectors intermittently running about 3 to 4A, powering a 12V compressor fridge.

Therm-App Pro camera, 13mm f/1 lens, ThermViewer, overlay and cropping in PaintShop Pro (no image processing).
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Offline jumpy9734

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Re: Thermal Imaging Gallery II
« Reply #14 on: August 13, 2019, 06:07:41 pm »
Camera : Seek Thermal Compact Standard (2017 Version)
Sensor Resolution : 206x156

A few angles with my old Sony Camcorder:







 

Offline pauledd

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Re: Thermal Imaging Gallery II
« Reply #15 on: August 14, 2019, 07:21:48 pm »
Some ordinary Seek Compact Pro flicks...
A little great tit enjoying a nut from my leg. (Man, I have to go for a 30Hz device! Those birds are so fast  :-// )


And my 3D printed lantern interior with 130 WS2812B leds. Used a cheap chineese PSU where the power cables are so thin that they act as heater and gave me a massive voltage drop to my leds...


 
« Last Edit: August 14, 2019, 07:24:50 pm by pauledd »
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #16 on: August 20, 2019, 03:01:02 pm »
A plane passing overhead as I was driving on the M25 motorway near London Heathrow:

[attach=1]

Image made using Therm-App Pro (640x480/25Hz), 35mm lens, ThermViewer software (with superresolution to 1280x960), still from a video.
« Last Edit: August 20, 2019, 03:03:56 pm by Ultrapurple »
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #17 on: August 20, 2019, 03:07:44 pm »
I was playing and noticed that the 'green' recycling bin was noticeably warmer than its 'general recycling' neighbour. Ten days ago I shredded a load of offcut branches and put them in the bin for recycling; it looks as though the chippings have started to compost and are generating low-level heat.

[attach=1]

Image made with with FLIR SC-660, no post-processing (other than cropping and resizing the visible images and making the mosaic).
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #18 on: August 22, 2019, 08:52:23 am »
Hi-res LWIR London skyline seen from 10th floor* observation platform at Tate Modern.

Therm-App Pro 640x480x25, 35mm f/1.1 lens, ThermViewer driver software with superresolution enhancement to 1280x960, about 12 images stitched in Microsoft Image Composite Editor, cropped & gently tweaked in Paint Shop Pro. Image is 2990 x 1817 (~5.5Mpix), uncropped original is slightly larger. You'll have to download the image to see it full size - the online view is only a small fraction of the full size image.

*For Americans, that's the 11th floor.
I try never to miss a chance to poke fun at people who feel the need to number floors logically.
« Last Edit: August 23, 2019, 03:21:07 pm by Ultrapurple »
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #19 on: August 22, 2019, 08:54:28 am »
St Paul's Cathedral, London.

Therm-App Pro 640x480x25, 35mm f/1.1 lens, ThermViewer driver software with superresolution enhancement to 1280x960. Gently tweaked in Paint Shop Pro.
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Offline Exoc

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Re: Thermal Imaging Gallery II
« Reply #20 on: August 26, 2019, 05:36:57 pm »
This weekend, there was a car meetup close to where i live. I headed down there, knowing that people might do some burnouts.
I brought my Therm-App Hz to try to capture some, here is what i got.
[youtube][/youtube]
 
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Offline meanie2

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Re: Thermal Imaging Gallery II
« Reply #21 on: August 31, 2019, 09:48:00 pm »
Hi! Need pics and info of the ZNSE lenses for Seek compact pro
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #22 on: September 01, 2019, 02:12:10 pm »
Please try to keep this on-topic: this thread is for showing your best or most interesting thermal images. There are plenty of other threads, or just start a new one if nothing seems to fit.

Cheers all

Ultrapurple

PS if a mod is watching could you make the previous couple of posts a new topic and delete this message? Thanks.
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Offline pauledd

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Re: Thermal Imaging Gallery II
« Reply #23 on: September 01, 2019, 02:43:04 pm »
« Last Edit: September 01, 2019, 02:45:00 pm by pauledd »
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Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #24 on: September 03, 2019, 03:08:27 pm »
TE-Q1
Overcast dawn with thin fog



 

Online tmbinc

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Re: Thermal Imaging Gallery II
« Reply #25 on: September 04, 2019, 09:55:15 pm »
Chaos Communication Camp 2019, Fairy Dust (the rocket)

Camera: Autoliv NV2 on Raspberry Pi
Postprocessing: GIMP, some remapping
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #26 on: September 05, 2019, 08:04:08 am »
Which is which?

One of these images is a black hot thermal, the other is a B&W visible light image. To the trained eye it'll be fairly obvious which is which but I wonder whether the casual observer will immediately be able to do so.

No inference should be taken from the relative sizes of the images; I did some scaling to make the objects appear roughly the same size. Both images are crops from the middle of a larger image. The thermal camera recorded a span of about 30°C so it wasn't exactly a noisy image, however the visible light camera frankly isn't that good and was struggling a bit.

Device used: FLIR SC-660 thermal and built-in visible light camera. Both images fairly similarly processed from in-camera JPG using Paint Shop Pro X.


[attachimg=1]


[attachimg=2]
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Offline Mr. Scram

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Re: Thermal Imaging Gallery II
« Reply #27 on: September 05, 2019, 02:11:48 pm »
TE-Q1
Overcast dawn with thin fog
Even though it makes a lot of sense it always catches me off guard how uniformly warm the world out there tends to be.
 

Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #28 on: September 05, 2019, 02:45:37 pm »
TE-Q1
Overcast dawn with thin fog
Even though it makes a lot of sense it always catches me off guard how uniformly warm the world out there tends to be.
Only under the mentionend conditions. ;) I was surprised how much effect fog had in spreading out the temperature. There was no clear line between forest and sky.
 

Offline Mr. Scram

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Re: Thermal Imaging Gallery II
« Reply #29 on: September 05, 2019, 03:02:58 pm »
Only under the mentionend conditions. ;) I was surprised how much effect fog had in spreading out the temperature. There was no clear line between forest and sky.
It doesn't seem much different from a street on a hot summer night. Everything is almost the exact same temperature with the sky sometimes being the exception. I suspect the same street in the winter time looks much different.
 

Offline eKretz

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Re: Thermal Imaging Gallery II
« Reply #30 on: September 07, 2019, 06:35:33 pm »
I've always said black hot is as close as you'll get to visible light in black and white. The above comparison proves that pretty well. The bottom image is easily identified as the thermal but only because of the "blushing" on the door showing a temperature differential and the IR reflection on the latch hasp. The "cold" screw heads stick out also. I'm thinking they may be reflecting the sky.
« Last Edit: September 07, 2019, 06:40:32 pm by eKretz »
 

Offline frenky

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Re: Thermal Imaging Gallery II
« Reply #31 on: September 09, 2019, 09:56:44 am »
My new toy (Ender 3 Pro).  :scared:



 

Offline bap2703

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Re: Thermal Imaging Gallery II
« Reply #32 on: September 09, 2019, 02:11:01 pm »
Molen lava printing :D
 

Offline frenky

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Re: Thermal Imaging Gallery II
« Reply #33 on: September 09, 2019, 07:36:23 pm »
Hehe, it's really hard to get focused image because bed is moving back and front all the time.  :o
 

Online DaJMasta

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Re: Thermal Imaging Gallery II
« Reply #34 on: September 09, 2019, 08:17:10 pm »
For a second I thought I uploaded those 3d printing pics.... got an e40 a couple weeks ago and was testing it out looking at the same benchy print on mine!  But I've got a prusa, and I didn't upload any of the videos cause I was test printing with polycarbonate and was running into Y axis crash issues that were stopping the video every so often  :-DD


Maybe next time!  I haven't seen a great long-term temperature differential with many layers of print, but that first molten hot layer looks great coming out of the nozzle.
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #35 on: September 15, 2019, 03:25:43 pm »
Barbecue at cooking temperature, peaking around 800°C.

FLIR SC-660, standard lens. Off-camera JPG, plus radiometric TIFF extracted with Exiftool and adjusted to taste in Paint Shop Pro.

The scene was hot enough that the sensor suffered temporary burn-in, however the automatic NUC quickly sorted that out. I think this is the first time I've used the camera on its 2000°C range.

I did try pointing my Therm-App at the same target but it simply couldn't cope: it virtually whited out and there was no detail in the hot bits. No surprise there, as the Therm-App isn't rated for anything like that sort of temperature.

The first image below is the full radiometric JPG: I'd be interested to see what anyone else can do with it, for example changing the linearity and/or employing a pretty palette.
« Last Edit: September 16, 2019, 07:31:29 am by Ultrapurple »
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #36 on: September 16, 2019, 11:53:15 am »
Yoda 3-D printing it is.

Seen at the UK National Physical Laboratory Open Day in May 2019. Still image from video.

Camera setup: Therm-App Pro, stock driver app, 640x480x25, post-processed to 1280x960 by Video Enhancer 2; frame extracted by VLC Media Player. Minimal post-capture processing.

Visible light (DSLR) photo for comparison.
 
« Last Edit: September 19, 2019, 12:12:46 pm by Ultrapurple »
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Offline frogg

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Re: Thermal Imaging Gallery II
« Reply #37 on: September 16, 2019, 05:09:38 pm »
Lime SDR Mini

[attachimg=1]
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #38 on: September 16, 2019, 05:16:17 pm »
Camera?
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Offline frogg

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Re: Thermal Imaging Gallery II
« Reply #39 on: September 16, 2019, 11:27:27 pm »
Sorry, ye olde FLIR T300
 
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #40 on: September 19, 2019, 12:04:49 pm »
Writing (a lot of) data to a 512GB Kingston SD card with a cheap USB 3.0 card read/writer.

Therm-App Pro with ThermViewer for 1280x960 originals, stack of ~20 images in Registax 6, minor processing and crop in Paint Shop Pro X.

If you turn the image upside down you can just about read "Kingston" on the card in the dark (hot) section nearest the reader and "512GB [C10 symbol]" in the middle. And if you squint hard enough, there's a USB 'trident' logo in the light blue rectangle on the USB 3 (extension lead) socket.

The second image is an uncropped and unprocessed original, straight off the camera. Although stacking ~20 images like this reduced the noise, there wasn't actually much noise in the image to start with.

Edit: Added X-Ray of the card. Image quality isn't all I'd hoped it to be, but I'll see what I can do to get a clearer shot of it in due course. The main issue is that my X-Ray system is set up for objects much larger than a SD card - think more in terms of X-Raying a DSLR, with generous margins all around - and the optical system will need slight adjustment to focus in on a closer area. I know I'm at completely the wrong end of the spectrum here for the thermal imaging forum, but hey...

Edit II: Added somewhat higher resolution X-Ray made with microfocus source. I'm still working out how to use the machine (I don't have a sensor plate for it) but already the images are, I think, arguably better than the Scanmax can manage.

Edit III: Added another X-Ray of the same SD card made with a Faxitron 20 microfocus cabinet system. The difference in clarity is like night and day. I expect to get even better images in due course once I've found my way round the machine a bit, calibrated it and so forth, but that's not exactly a thermal imaging topic!
« Last Edit: October 30, 2019, 11:21:38 am by Ultrapurple »
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Offline Vipitis

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Re: Thermal Imaging Gallery II
« Reply #41 on: September 19, 2019, 03:24:00 pm »
While my project reached more dead ends. I am currently planning a temporary solution, more about it in October. Here a picture of the camera operating shot with my phone. Hot to the touch. Uncalibrated measurements of 42° peak.

 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #42 on: September 23, 2019, 12:41:01 pm »
Linear power supply (Palstar PS-50) control board thermal and, from a different angle, visible.

Therm-App Pro, superresolution to 1280x960 in ThermViewer, some very crude focus stacking in Paint Shop Pro.
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #43 on: September 24, 2019, 08:31:51 am »
Effect of different palettes.



(click image for Flickr page or download full size 2617 x 1980 5MB PNG original here)

Here is the same thermal image taken with the camera set with four different palettes: clockwise from top left are Iron, Black Hot, Rainbow and White Hot.

It's often said that Black Hot (top right) is the closest you'll see in the thermal spectrum to a black and white visible light image. The car is very dark grey and the sky (reflected in the windscreen) was clear (=cold) so that certainly holds true here.

All of the original images were made with a Therm-App Pro 640x480x25Hz thermal camera with 19mm lens, ThermViewer driver software (which provides superresolution to 1280x960), then Paint Shop Pro just to blur out the registration plate (which showed up incredibly clearly) and composite the four images. They were saved as PNG from the camera and haven't been compressed.

You may just be able to make out my driving spectacles, which I left on the bonnet whilst I took these images. They let me see a sparrow at 1000 feet but are absolutely useless at anything approaching arm's length. My arms aren't long enough to hold the Therm-App far enough away!

Taken at a motorway services car park near the England-Scotland border on a fine, sunny late September day. (My passengers had wanted to stop for a comfort break and, apparently, there was a queue - so I had a few minutes spare).
« Last Edit: September 24, 2019, 08:39:40 am by Ultrapurple »
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Offline mahony

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Re: Thermal Imaging Gallery II
« Reply #44 on: October 13, 2019, 07:09:55 pm »
Long time no update, but today I took out my pano-gear again for some testing (after some software mods).
Not a very interesting new scenery but we had a pretty sunny an warm day which made for some nice imagery.

Subject: Town
Camera: Thermal Expert TE-V1
Lens: Ophir 100mm f/1.6
Image processing: huge panorama via Microsofts ICE from 400 shots plus 8x stacking per frame - roughly 27MPixel in total

2048px pre-view - full resolution may be downloaded from flickr:
sunny_day_panorama by Toni Zettl, auf Flickr

Attached is a ~800x600 crop at 100%.
 
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Offline Vipitis

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Re: Thermal Imaging Gallery II
« Reply #45 on: November 18, 2019, 08:41:02 pm »
Alright, let's keep this alive. While my cameras are far from field ready. I do need to keep myself motivated. Here is a self portrait I did during some testing for a monthly photography competition. It is shot on a MIRICLE 110K 25um pixel camera with a 32mm f/1 lens. I captured the composite out via a USB frame grabber and saved a few stills as .bmp then change that to .jpg and used Palette Generator and applied the FLIR iron palette ripped from a Lepton image. I will include the greyscale image as well so you can the what of a perceived different it makes.

the top right is the FCC flag partially stuck again - that requires a simple fix... or I switch lenses altogether.
 

Offline All Seeing Eye

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Re: Thermal Imaging Gallery II
« Reply #46 on: November 19, 2019, 03:19:21 am »
Dog
HT-301
13mm
384X288
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #47 on: November 20, 2019, 10:25:01 am »
@Vipitis - nice to see you! That's a pretty decent image; I just wonder if the focus is slightly off or whether it's an artifact of the convoluted path you had to follow in order to get an image on the computer?

@All Seeing Eye - very nice! I'm amazed that the sci-fi world doesn't pick up on the 'hot eyes' look that we so often see: it looks so malevolent...
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Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #48 on: December 04, 2019, 06:06:35 am »
Subject: DC-DC XL4016
Camera: HT-301
Lens: 13mm

[attach=2]
 

Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #49 on: December 04, 2019, 06:09:43 am »
Subject: DC-DC XL4016
Camera: HT-301
Lens: 13mm

[attach=1]
 

Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #50 on: December 04, 2019, 06:12:56 am »
Subject: Fritzbox 3390
Camera: HT-301
Lens: 13mm

[attach=2]
 

Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #51 on: December 04, 2019, 06:15:28 am »
Subject: boiled water
Camera: HT-301
Lens: 13mm

https://youtu.be/F9461Vfi_hA
 

Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #52 on: December 04, 2019, 06:19:02 am »
Subject: building
Camera: HT-301
Lens: 13mm

[attach=1]
 

Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #53 on: December 04, 2019, 11:32:18 am »
Subject: building
Camera: HT-301
Lens: 13mm

[attach=1]
Holy crap that's a good camera for only 600£!  :o Similar price to Thermal Expert but better performance.
« Last Edit: December 04, 2019, 11:43:45 am by Conure »
 

Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #54 on: December 04, 2019, 03:40:21 pm »
Subject: Auto
Camera: HT-301
Lens: 13mm

[attach=1]
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #55 on: December 06, 2019, 10:58:34 am »
My dishwasher sprang a leak...

So I ran it on a regular cycle, waited until it started heating the water and looked for the tell-tale hot bit in the leak. That told me where to look for the defect and I was able to cure it pretty quickly. It would have been much more difficult without a thermal camera to guide me.

Camera: ThermApp Pro 640x480
Lens: 19mm f/1.2
Driver: ThermViewer with superresolution to 1280x960
Processing: Registax (275 frames from MP4 video converted to AVI - almost no noise left!)
« Last Edit: December 06, 2019, 11:54:44 am by Ultrapurple »
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Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #56 on: December 22, 2019, 02:33:17 pm »
Subject: Finger
Camera: HT-301
Lens: 13mm

[attach=1]
 

Offline alex871

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Re: Thermal Imaging Gallery II
« Reply #57 on: December 22, 2019, 10:56:51 pm »
Flir E6

 

Offline jumpy9734

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Re: Thermal Imaging Gallery II
« Reply #58 on: December 23, 2019, 01:38:05 pm »
Seek Thermal Compact (2017 manual focus version)
Sensor Resolution : 206x156
< 9 Hz Frame Rate
1,000 ft. Detection Distance
-40F° to 626°F Detection

People and cars on the street


People and cars on the street 2


Radiator


Radiator pipes


Old cast iron radiator


Bad peripheral blood circulation


Opened window

 

Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #59 on: December 23, 2019, 07:35:12 pm »
TE-Q1
House under various time and weather conditions.

 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #60 on: December 23, 2019, 10:01:33 pm »
Seasonal greetings

Office Christmas tree half-way up the stairs. Some lights, mix of LED and filament (the latter mainly in the bottom third). Presents beneath tree. Quickly snatched shots with no camera warm-up time, finesse or significant post processing.

ThermApp Pro, 640x480, superresolution in ThermViewer to 1280×960.
« Last Edit: December 23, 2019, 10:06:48 pm by Ultrapurple »
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Offline Vipitis

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Re: Thermal Imaging Gallery II
« Reply #61 on: December 27, 2019, 09:32:32 pm »
felt like posting again. I repaired my prototype so it is version 1c now. However the shutter is still not moving completely out of the way. I started to remove the lens from the VGA sized core, but that was unsuccessful so far, the lens seems to be in some kind of housing and now there final two accessible screws are stripped.

This was an idea completely out of the blue. I remembered to have shot about the same angle on my phone a year back. that was with my DIY lens attachment of the new broken lens. I had to manually adjust the levels and the shutter shadow is  very present. getting the VGA core will only fix half of the issues. full digital access and RAW output is my long time goal for the next year. tomorrow my brother has a lot of people over and I will gather some shots of people and play with color. doubt I will get the shutter fixed or the core freed in time.-

stiched from video in ICE, paint.NET color adjustments, Palette Generator with FLIR iron palette. resolution is incorrect both times.
old post(reference): https://www.eevblog.com/forum/thermal-imaging/thermal-imaging-gallery/msg1887413/#msg1887413
 

Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #62 on: January 01, 2020, 01:55:45 am »
Subject: Fireworks Mix.  Happy new year 2020!
Camera: HT-301
Lens: 13mm

https://youtu.be/-m7RYPIIRXc
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #63 on: January 09, 2020, 04:20:14 pm »
Over the Christmas and New Year break the place I work was kept on 'care & maintenance' heating but my boss' office was not. When I came in over the holidays I noticed his door was significantly colder than all the others - so I set up my Therm-App Pro and then opened the door to see what it would look like.

It wasn't actually arctic cold, but the thermal image suggests otherwise! The temperature span was, I guess, three or four centigrade.
« Last Edit: January 10, 2020, 08:20:36 am by Ultrapurple »
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Offline jumpy9734

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Re: Thermal Imaging Gallery II
« Reply #64 on: January 11, 2020, 03:14:43 pm »
Seek Thermal Compact (2017 manual focus version)
Sensor Resolution : 206x156

A longer distance field test with someone walking in a yard, at about 70m distance

 

Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #65 on: January 20, 2020, 10:24:45 am »
TE-Q1

Cold shoes and jacket after a walk.


Ducks on a cloudy day


Concrete pier on a day of clear sky
 

Offline frenky

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Re: Thermal Imaging Gallery II
« Reply #66 on: January 20, 2020, 12:44:17 pm »
Just a friendly suggestion to get better images. Change aspect ratio in ThermalExpert app to 4:3.  :-+
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #67 on: January 20, 2020, 01:02:06 pm »
+1

No point in having all those nice pixels and then cutting off a good third of them! I get irritated enough by the little "FLIR" logo in the bottom left of my SC660, let alone needlessly losing any more...

(and, though I am aware my opinion isn't worth a bean, I'm one of those people vehemently opposed to vertical video ... probably because I have a 'widescreen' monitor, not a 'tallscreen' one!)
« Last Edit: January 20, 2020, 01:03:58 pm by Ultrapurple »
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Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #68 on: January 20, 2020, 02:54:34 pm »
Just a friendly suggestion to get better images. Change aspect ratio in ThermalExpert app to 4:3.  :-+

You mean like this? I changed the settings and all I notice is some black bars at top and bottom. Less pixels.
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #69 on: January 20, 2020, 03:24:33 pm »
Fewer screen pixels but many more thermal pixels.
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Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #70 on: January 21, 2020, 04:57:00 pm »
TE-Q1 conrete pier on cloudy day

Notice the sun in the middle pic.
 

Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #71 on: January 21, 2020, 05:20:41 pm »
A classic UFO pic in mid bottom one  :-+
Facebook-free life and Rigol-free shack.
 

Offline bostwickenator

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Re: Thermal Imaging Gallery II
« Reply #72 on: January 29, 2020, 02:38:12 am »
A composite of 6 frames from a Seek Compact Pro. Austin's skyline is on the horizon believe it or not.
[attachimg=1]
 

Offline guazan

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Re: Thermal Imaging Gallery II
« Reply #73 on: January 29, 2020, 12:22:37 pm »
TE-M1.
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #74 on: January 31, 2020, 09:05:11 pm »
@bostwickenator - lovely! What did you use to stitch the images?
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Offline bostwickenator

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Re: Thermal Imaging Gallery II
« Reply #75 on: February 01, 2020, 03:40:56 am »
It was stitched with Photoshop using the File > Automate > Photomerge flow.
 
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Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #76 on: February 03, 2020, 03:55:56 pm »
TE-Q1

Food


A ghost? Or a heat shadow. :D
 

Offline alex871

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Re: Thermal Imaging Gallery II
« Reply #77 on: February 05, 2020, 10:48:12 pm »
Ht-301 video montage. pity that youtube compresses the videos too much, the original is much better



« Last Edit: February 07, 2020, 11:43:02 pm by alex871 »
 

Offline RBsonic

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Re: Thermal Imaging Gallery II
« Reply #78 on: February 12, 2020, 05:30:06 pm »
Subject: Ice water.  All palletes
Camera: HT-301
Lens: 13mm

https://youtu.be/SFOn1joRf90

 

Offline Conure

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Re: Thermal Imaging Gallery II
« Reply #79 on: February 20, 2020, 09:00:08 pm »
Te-Q1
Cat outdoors on an mostly wet overcast day.

https://www.youtube.com/watch?v=cl3LFwo63JA&feature=youtu.be
 

Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #80 on: February 22, 2020, 05:21:29 am »
A soldering station.
Source: the liberated Flir E4
2x resizing with Waifu

[attachimg=1]
Facebook-free life and Rigol-free shack.
 
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #81 on: February 22, 2020, 10:21:04 am »
Lovely image!
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Offline Bill W

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Re: Thermal Imaging Gallery II
« Reply #82 on: March 11, 2020, 06:01:08 pm »
[attachimg=1]

Daytime street view

Camera sensor: ULIS Pico 384
Lens: 19mm f/1.3
Original resolution: 320x240 single shot image

Raw 16 bit data image converted to bmp in Image J
Mild Photoshopping for noise, gamma and upscaling.
 
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #83 on: March 12, 2020, 12:00:43 pm »
Seek Reveal Pro FF (340x240, >15Hz)

Images resized in Waifu2X, no other processing.
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Offline BUMERANG

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Re: Thermal Imaging Gallery II
« Reply #84 on: March 17, 2020, 08:39:25 am »
Thermal Expert Q1 Plus:




 
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Offline IwuzBornanerd

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Re: Thermal Imaging Gallery II
« Reply #85 on: March 17, 2020, 09:00:32 pm »
Aha!  A noisy image from a TE.  Thank you for showing its limits.  Judging by the colors, though, it looks like the range of temperatures in the image is less than the 2C range shown on the scale.  Maybe about 2/3 of the scale for 1.3C?
I am not opposed to exercise, unless it is an exercise in futility.
 

Offline jumpy9734

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Re: Thermal Imaging Gallery II
« Reply #86 on: April 11, 2020, 07:14:54 pm »
Seek Thermal Compact : 206 x 156 Thermal Sensor, 36° Field of View, < 9 Hz Frame Rate, Focusable Lens (2017 version)

I've used SeekOFix this time, image quality is better than on the android app and it's possible to see finer details.

Someone walking the dog (about 50 yards distance)



People, dogs, kids (on the left side)




« Last Edit: April 11, 2020, 07:17:17 pm by jumpy9734 »
 

Offline freem

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Re: Thermal Imaging Gallery II
« Reply #87 on: April 14, 2020, 02:08:41 am »
dana
 

Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #88 on: April 18, 2020, 06:18:44 am »
Yaesu Ham rig.

Source: the liberated E4

[attachimg=1]
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Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #89 on: April 21, 2020, 06:19:25 am »
Commodore 64 board

Source: the liberated E4
2x resize with Waifu
Palette adjustment with ImageJ

[attachimg=1]
Facebook-free life and Rigol-free shack.
 

Offline zrq

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Re: Thermal Imaging Gallery II
« Reply #90 on: April 24, 2020, 03:41:16 am »
Target: Raspberry Pi 3B and a SDR dongle (as ADSB receiver)
Camera: XTherm T3s (like HT-301)

The second image is processed by applying EDVR algorithm (x4) (https://github.com/open-mmlab/mmsr) using official pretrained model on Vimeo-90K dataset and a registration of 30 output frames upscaled by Lanczos interpolation (x2) and aligned with LK optical flow.
« Last Edit: April 24, 2020, 04:59:35 am by zrq »
 

Offline zrq

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Re: Thermal Imaging Gallery II
« Reply #91 on: April 24, 2020, 03:45:18 am »
Visible image of the target in the last reply for reference.
 

Offline zrq

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Re: Thermal Imaging Gallery II
« Reply #92 on: April 24, 2020, 04:33:09 pm »
Somewhere in China
Camera: Xtherm T3s
Included 1. raw image, 2. EDVR processed image (using pretrained model on Vimeo90K), 3. PFNL processed image (published pretrained model)
The EDVR frame is manually picked from various output frames of a video input (converted to a stack of pngs with ffmpeg). Some frames contain serious artifact where there are high frequency compoents (~2 px/cy).
PFNL don't have this problem.
« Last Edit: April 28, 2020, 03:14:18 am by zrq »
 

Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #93 on: April 28, 2020, 03:52:09 am »
An opossum hiding in the night under the roof of a garden shed.

Source: the liberated E4.

[attachimg=1]
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Offline NiallxD

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Re: Thermal Imaging Gallery II
« Reply #94 on: May 03, 2020, 08:31:01 pm »
Here's a pano taken from a bedroom window.

Seek Compact Pro FF.
iPhone 11 Pro.
Stitched with ICE.
Processed in Affinity Photo

I hope to do more once I'm allowed out. |O

 

Offline Vipitis

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Re: Thermal Imaging Gallery II
« Reply #95 on: May 05, 2020, 08:33:15 am »
I have wanted to do this for a while and here are my first useable results.

Cactus in stacks.

This image was taken with a MIRICLE 110K-35 and a 32mm f/1 lens. I recorded a short video clip of a focus pull and than exported 70 individual frames. Using Zerene Stacker I aligned all images and stacked them for focus. I adjusted curves and added some color with Paint.NET.

The results are very interesting, especially given the very shallow dof this sized sensor gives on a f/1 lens, while this kind of stacking gives me focus, I also want to explore stacking for less noise and more resolution, but I will keep looking.

attached is the final result and one input image so you can see how much more there is.

[attachimg=1]
 

Offline ArsenioDev

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Re: Thermal Imaging Gallery II
« Reply #96 on: May 24, 2020, 06:13:14 pm »
I've got a 30HZ 640*480 FLIR TAU2 on loan for a bit, took some INCREDIBLE photos of stuff around the house. First up is internal shot of my main rig, USB3 expansion card over my GTX1070, second is a FX6100 based testbench running Prime95 to heat soak, note the emissivity of the CPU cooler messes with temperature reads, and the Asus badge is shiny.  Third up, I had to do the self-portrait.

Edit: Zero processing done on ANY of these, straight from camera captures here!

Seriously this thing is INCREDIBLE and I really want one of my own.
« Last Edit: May 24, 2020, 07:24:55 pm by ArsenioDev »
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #97 on: June 01, 2020, 12:53:24 pm »
Commodore 64 board

Source: the liberated E4
2x resize with Waifu
Palette adjustment with ImageJ


That ... is ... stunning!
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Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #98 on: June 09, 2020, 07:38:51 pm »
 Through-steel-door thermal imaging. :-DD   :-+
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #99 on: June 10, 2020, 07:51:24 am »

Quote from: Bud on Yesterday at 07:38:51 pm
Through-steel-door thermal imaging. :-DD   :-+



Yeah, that new-generation MSX is really good!  :-+ They should patent it quickly!  :-DD

And see, he's got one of those expensive thermal imaging video recorders strapped to his arm.

[attachimg=1 width=250]
« Last Edit: June 10, 2020, 09:32:17 am by Ultrapurple »
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Offline mahony

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Re: Thermal Imaging Gallery II
« Reply #100 on: June 23, 2020, 10:36:33 am »
Today: micro panorama town from 22 frames captured free hand.
Camera: DIY based on Lepton3 (from dead FOne Gen2) and Teensy 3.6
Lens: Lepton3 standard 50°ish
Processing:
- raw to png
- 2x upscale w/ IrfanView
- stitching w/ ICE
- brigthness/contrast w/ IrfanView and 0.5x downsampling

I initially stitched w/o upscaling which resulted in some errors and also some loss in image sharpness/contrast. Upscaling seems to really help with this - so might be worth trying especially on low res imagery.

I attached the used original size png-images just in case someone wants to play with this.
 

Offline Vipitis

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Re: Thermal Imaging Gallery II
« Reply #101 on: July 15, 2020, 08:06:11 pm »
old test footage that I am currently working on for a small video.

shown here is a bumblebee hovering. Those bees are isolated naturally but need to warm up for flight.

MIRICLE 110K-35 with 32 mm f/1 lens on close focus. recorded the analog out into PAL resolution and working in Resolve at qPAL (1440x1152).

Custom palette I made in Resolve using the RGB splitter (alt+y) and very carefully doing just the Y curves for all the channels. I am learning new methods and getting more control - this is just linear gamma tho. I also added the inverted version of the palette, as I like to see both ways for different views. I have seen this palette before but don't recall the origin or name.
 

Offline alex871

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Re: Thermal Imaging Gallery II
« Reply #102 on: July 27, 2020, 02:01:44 pm »
Hti 301 with xinfrared app (night)
« Last Edit: July 27, 2020, 02:03:34 pm by alex871 »
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #103 on: August 20, 2020, 11:38:51 am »
Subject: Cheap 3-output USB charger that runs rather hot: thermal, visible and X-Ray composite image.



Image hue and saturation taken from thermal image; lightness taken from an average of the visible and X-Ray. Other combinations are possible and can result in some really wacky-looking images.

Thermal image - 640x480 from FLIR SC-660

Visible image - from FLIR SC-660's (rather poor) visible camera

X-Ray - Scanmax cabinet, microfocus tube at 35kV (highest it'll do), 4Mpix solid-state sensor (I invite you to look at the full resolution X-Ray - here's a small snippet at full res; the full image is 2340x2368, slightly more than a 4k screen)


« Last Edit: August 22, 2020, 10:20:25 am by Ultrapurple »
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #104 on: August 20, 2020, 11:58:21 am »
Alternate version, using just thermal and (positive) X-Ray:



Earlier version (from 2015) using a different X-Ray setup (IIRC, 55kV) and a Therm-App camera, no visible image:



« Last Edit: August 21, 2020, 09:57:43 am by Ultrapurple »
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Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #105 on: August 21, 2020, 07:43:19 pm »
Toronto police cracking down on illegal car racing
(video may have a leading ad)

https://www.cp24.com/video?clipId=2019891&jwsource=cl
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #106 on: August 22, 2020, 10:07:27 am »
@Bud - Interesting though that video is (and some of the pictures are such superb resolution and low noise I'd sell my granny for the camera), I'm not sure that it belongs in the 'your thermal images' gallery - it's more the sort of thing for the thermal imaging in mainstream media thread. Unless of course you filmed it in your day job...

Just my $0.03 (adjusted for inflation). Anyone's welcome to tell me I'm wrong, and I'll listen.
« Last Edit: August 22, 2020, 10:09:07 am by Ultrapurple »
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Offline Bud

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Re: Thermal Imaging Gallery II
« Reply #107 on: August 22, 2020, 02:01:59 pm »
Right, should be in the mainstream media thread, mods please move - thank you.
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #108 on: August 22, 2020, 07:19:13 pm »
Patio of a pub in a small English village, early lunchtime.

Camera: Seek Reveal Pro FF, 320x240 native

Three images put together with Microsoft Image Composite Editor (ICE).

Version 1: using images straight from camera, composited in ICE, resized 2x in Paint Shop Pro  (PSP), 'one step noise removal', 'sharpen more'

Version 2: same images, resized 2x in PSP, composited in ICE, back to PSP for 'one step noise removal', 'sharpen more'

I'm interested to note that the Version 2 image is subjectively much better than the Version 1. I've felt for some time that it was probably a good idea to increase the size of images before compositing; these two samples indicate I may have been right.

The third image, a montage of four similar shots of a dog at the same pub, show the importance of picking your palette. I generally like to work in black and white for thermal images. The B&W image of the dog is easy to recognise, but it's far harder to identify the subject in the other images, even when you know it's a dog. (Images re-sized 2x in PSP then put together as one; no other major processing).
« Last Edit: August 22, 2020, 07:21:59 pm by Ultrapurple »
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Offline G7PSK

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Re: Thermal Imaging Gallery II
« Reply #109 on: August 30, 2020, 08:26:29 pm »
Just got a CAT S62 phone with a built in Flir sensor, This is one of the first pictures taken with it, nine month old puppy sleeping. Never had a thermal camera before and did not realise that you could get phones with them built in until I saw Big Clive with one some time ago, waited until they released the S62 though as it was supposed to be a considerable improvement on the earlier versions. So far I am impressed with both the phone and the thermal camera.
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #110 on: September 02, 2020, 08:12:24 am »
Interesting to compare the dog images from the CAT S62 with those from the Seek Reveal Pro FF, particularly the greyscale one.
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Offline Durrfred

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Re: Thermal Imaging Gallery II
« Reply #111 on: September 21, 2020, 01:39:52 am »
Absolutely stunning!
 

Offline eKretz

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Re: Thermal Imaging Gallery II
« Reply #112 on: September 21, 2020, 10:05:50 am »
I wonder if that image from the S62 is out of focus. Here's one from my upgraded E40. No resolution increase, just straight out of the camera. (Viewed in Flir Tools, gets it an automatic upgrade to 640x480).
 

Offline G7PSK

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Re: Thermal Imaging Gallery II
« Reply #113 on: September 21, 2020, 03:27:07 pm »
It is a very hairy puppy, a radiator has sharp edges so must be the fur.
 

Offline Vipitis

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Re: Thermal Imaging Gallery II
« Reply #114 on: September 21, 2020, 04:04:42 pm »
Re CAT S62: There isa Lepton 3.5 in side and that has a shitty lens. It is fixed focus so somehwere between 85cm and 5m. However there are other issues with it's implementation - VividIR is a really crude sharpening algorithm that FLIR employs and doesn't give any details about. It sometimes gives better images, but often only hides the issues with such a low resolution core. the further issue is that no matter what image you shoot, thermal only, MSX, alpha... you will get upscaled to VGA resolution (while you are an 16th of that). And it is the blurry type of upscaling that makes this very useless past "detecting something", if you manage to see if between the 7hz. It is not any noteable improvement over the CAT S60 with a Lepton 2.5 from just the experience. The further issue is that 3rd party apps like ThermalCamera+ By George Friedrich isn't supported for the newer leptons anymore (CAT S62 or even FLIR One Pro(which the CAT S62 has integrated)). Otherwise the phone is baller I am just sad about the wasted space for none exsisting bottons, no headphone jack and grounded screen corners for what ever reason ever.


But to keep this on topic, this is a gallery so I will post something. Here is an image shot with a real VGA core(MIRICLE 307K-25) and 32mm f/1 lens. It's captured via analog out and saved with a ImmersionRC PowerPlay. As this is monochrome with AGC within like center 70% and <2000kbps the quality is awful and I am seeing interlacing artifacts all over the place. The image is edited directly within Windows Photos as I am still working on the correct project settings to get the footage working in Resolve.

self portrait [attachimg=1]
 

Offline Simon1983

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Re: Thermal Imaging Gallery II
« Reply #115 on: September 21, 2020, 11:17:10 pm »
Seek Shot Pro
320x240 not edited (straight from camera)

Hi there,
just got a Seek Shot Pro and tried it out. As I also read in this forum, I also found the images very noisy at low spans. At 20°C or more span I find the images quite good. Even I think the Shot Pro has fixed focus, it seems to sometimes have trouble taking sharp images (especially the stove in the last picture). Still, I'm pretty happy with the device.
« Last Edit: September 21, 2020, 11:18:46 pm by Simon1983 »
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #116 on: September 22, 2020, 07:59:08 am »
,
just got a Seek Shot Pro ... it seems to sometimes have trouble taking sharp images (especially the stove in the last picture).

Thermal is often like that: sharp edges can be really hard to achieve.

There are so many factors working against one in terms of achieving good picture quality (compared to a mid-range cellphone visible image).

1 - resolution - this is a big issue: you just don't have many pixels, and they are all (necessarily) processed nearly to death in order to get a usable image. A mid-range 320x240 camera has 0.077 megapixels but no self-respecting cellphone boasts anything less than 10 megapixels - that's a factor of 130 times more resolution.

2 - lens quality - whilst it is possible to create optically perfect lenses at LWIR, it can be horribly expensive. Commodity thermal cameras use the simpler lens designs (eg fewer elements) and are often constructed with cheaper, lower performance materials produced to lower precision. That all helps to keep the device affordable. One of the lenses I have for my FLIR SC-660 lists at about the same price as a small car (and it's not all down to what I call "FLIR Tax"). Also, thermal camera lenses are normally as large-aperture as possible, within the cost constraints, which means the depth of field is limited. For fixed-focus cameras the manufacturer sets the lens up for roughly the hyperfocal distance and hopes for the best.

3 - wide frequency range - this is a subtle corollary to (2) and, in effect, means you have no chance of getting sharp images: typical LWIR cameras respond to a wavelength range of 7µm to 14µm, a 2:1 range. It is simply impossible for a simple lens to bring all of those wavelengths into sharp focus at the same time. The best you can hope for is that your subject will emit the majority of its energy in a moderately narrow range, but the nature of blackbody radiation (which we're looking at) means that's unlikely to happen. (In visible light lenses you get 'chromatic aberration', perhaps most often noticed as purple fringing on edges. These days even phone cameras have pretty well-designed multi-element lenses that minimise the effect, but applying the same level of complexity to a thermal camera lens is difficult-to-impossible, not least because there is no LWIR equivalent of the subtly different glass types used in visible lenses).

4 - processing - touched on in (1), but you really do need to understand that thermal imaging sensors are a very different beast from visible light cameras; adjacent pixels on a thermal sensor can have wildly different characteristics. These are mapped individually (pixel by pixel, sensor by sensor) by the manufacturer and for each sensor an individualised 'non-uniformity correction' data set is created - basically a big table of data that describes the offsets, non-linearities, drift characteristics and scaling differences of each individual pixel. Every pixel in every frame from a thermal sensor has its output tweaked according to the corresponding data points in the NUC table. And then there's noise reduction: thermal sensors are noisy, not least because they are responding to infinitesimally tiny variations in temperature. If you have a visible light camera with adjustable ISO, imagine running it at its highest ISO setting all the time: that's essentially how a thermal camera lives its life. For any given sensor type the only practical way to reduce its actual noise level is to use a larger-aperture lens. I have germanium lenses as wide as f/0.75; my widest photographic lens is f/1.4 and I believe the widest aperture 35mm camera lens in common production is f/0.95 (Nikon 58mm). Stanley Kubrick famously used one-third of the world's supply of ultra-wide aperture f/0.7 lenses (Carl Zeiss Planar 50mm) during the filming of Barry Lyndon - but I digress...

Sorry I've warbled on so much (and I've probably missed some important stuff) but hopefully this goes some way to explain some of what's going on. Reading back over what I've written I realise there's a lot more that could be said - for example, I mentioned the hyperfocal distance in (2), whereas it usually isn't appropriate to focus a thermal lens there because the low resolution of the sensor means that anything further than a certain distance will be too small for the sensor to detect, so it makes sense to focus a little nearer than hyperfocal ... and so it goes on.
« Last Edit: September 22, 2020, 03:27:40 pm by Ultrapurple »
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Offline Simon1983

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Re: Thermal Imaging Gallery II
« Reply #117 on: September 22, 2020, 01:15:09 pm »
@ultrapurple: Thanks a lot for the detailed info's; some I knew a bit of, but a lot of was new. Came to thermography by owning a CAT S60. I'm still learning. Like with the Shot Pro, at first I was shocked about the calibration frequency of nearly every two seconds. The longer it runs, the longer the interval gets.


I just bought the Seek for my hobby (electronics). Before I looked in both thermal imaging gallery's but didn't find a lot about the Seek Shot series. So I just wanted to contribute and show other hobbyists that have a small budget what they could expect from this device.
Greetings from Germany
 

Offline bap2703

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Re: Thermal Imaging Gallery II
« Reply #118 on: September 22, 2020, 05:53:07 pm »
@Ultrapurple

You forgot to add that thermal cameras (microbolometer type) are SLOW.
I feel that they are designed to deliver a VIDEO output around 25~60 images/second.
Hence they can capture a some motion blur.
Also when your eyes and brain look at a video stream that might look fine.
Take a still frame from that and it would look way worse than you thought.
 

Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #119 on: September 22, 2020, 06:23:09 pm »
@Ultrapurple

You forgot to add that thermal cameras (microbolometer type) are SLOW.

No I didn't forget that. They are not as slow as you suggest. The frame rate is determined primarily by the readout hardware (ROIC) and back-end processing.

The ultimate limiting factor is probably the thermal time constant of each pixel. Many microbolometer datasheets publish this figure - for instance in the Ulis Pico384 Gen2 it is quoted as <10ms, meaning that the microbolometers would be happy at ~100 frames per second. Other parts of the sensor limit the practical output to of this device 60fps. But exactly this sensor is used in several <9Hz thermal cameras: like I said, it's the back end that primarily sets the speed.

There are a number of microbolometer-based thermal cameras that operate in the hundreds of frames per second range. FLIR offers a LWIR camera that runs 1280x1024 resolution at 180Hz (the X8500sc SLS) and also other thermal cameras that quote 29,000 frames per second. But we won't see any of those at hobbyist prices anytime soon.
« Last Edit: September 22, 2020, 06:27:48 pm by Ultrapurple »
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Offline Ultrapurple

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Re: Thermal Imaging Gallery II
« Reply #120 on: October 14, 2020, 10:21:08 am »
Domestic hot water radiator before and after bleeding out air.

Images made with Seek Reveal Pro FF.
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Offline bap2703

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Re: Thermal Imaging Gallery II
« Reply #121 on: October 14, 2020, 05:58:38 pm »
Ultrapurple: the time constant is exactly like your first order lowpass filter bandwith. Sure nothing prevents you from working at higher frequency, you just lose signal.

That flir camera is called "SLS" because it's not using microbolometers but photodiodes.
Photodiodes are much sensitive and faster because there's only one fast process involved: photons are converted instantly to electrons-hole pairs that you just collect to count them.

 
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Offline AkiTaiyo

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Re: Thermal Imaging Gallery II
« Reply #122 on: November 03, 2020, 10:34:12 am »
Hot gas from a small candle.
And a Nixie Clock..

Industrial 384x288 8-14um camera.
« Last Edit: November 03, 2020, 10:45:36 am by AkiTaiyo »
 


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