Thermal Imaging Gallery II

[Ultrapurple]

Inspired by downtodo I propped up a small steel ruler and looked at it with my FLIR SC-660 (and close-up lens mentioned earlier) with two different palettes.

Although colourful, I don't think my results were anything like as interesting as the image by downtodo.

The third image was made without the auxiliary close-up lens and taken at the point of closest focus with the standard 40mm lens. It's interesting to see the rather narrow depth of field and also to compare the field of view. With the close-up lens the field of view is about 30mm, or roughly 2 pixels per mm (500µm per pixel). Without the lens the FoV is nearer 240mm, about 2.5mm per pixel (2500µm per pixel).

[downtodo]

How about this picture

[svgurus]

how about people reflecting heat while sitting near bonfire))

[frenky]

Ceiling lamp in kids room (ThermalExpert TE-Q1 Plus):

(There is a lot of noise because I forgot to do flat field calibration...)

[katzenhai2]

Subject: Thumb
Camera: HIKMICRO B20
Lens: ZnSe FL 50.8mm (2")
Original resolution: 256x192
Camera mod: Macro lens

Also see videos about sweat drops vaporising on hand and thumb:
HIKMICRO B20 - sweat drops on hand (I)

HIKMICRO B20 - sweat drops on thumb (II)

[Lambda]

Hello....

Today at Noon, the weather was very nice. A good occasion to play outside a bit with my 160x120 spotter i settled back in its basic configuration, with its Ge lens 15mm/1.0.

Just for sharing.



Best regards.

Stéphane

[Muny]

HT-301 taking a look at my 3D printer.

[Muny]

HT-301 with a f=50.8mm ZnSe lens (meant for CO2 lasers) in front of it, at the closest focus setting.

I'm truly impressed at the detail! I was expecting much more reduced sharpness away from the center of the image.

[Muny]

HT-301 looking at some pasta sauce that was microwaved being stirred.

[therwp]

I bought a tiny 5.6GHz FPV video transmitter via eBay. It seemed to be running a bit hot so I added a heatsink over the large synthesiser and smaller power amplifier chips. It was still a little on the warm side so I decided to frighten it with a thermal camera.

If the board has bits running at ~120°C with a heatsink, I can only wonder at how hot it was getting without the additional dissipating surface. Who designs these things? Or are the thermals now considered OK as long as the solder doesn't quite melt...?

Thermal image made with FLIR SC-660, standard 40mm lens plus Agema Thermovision close-up lens "20°LW" p/n 193 672.

Postscript: I added a rather larger heatsink (15x15x10mm) plus a 10x10x5mm heatsink on the other side of the board (which is also populated but with control rather than RF electronics) and the thing still runs at well over 80°C.

Are you sure you are using the right emissivity?

[Lambda]

Hello,

Just one amusement, yesterday evening, consisting in comparing three DIY nigh vision spotters: two spotters using image intensifiers in Vis/NIR, and one thermal spotter using an old core from FLIR (already presented in the forum)...



Best regards.

[MegaVolt]

OpenIRV project.

The water looks amazing.

https://youtu.be/F1t4kO1tv2c?list=LL

[JOSM]

My first contributions...
First image taken with Infiray T3S
The second one with Infiray T2L

[Lambda]

Hello.

Always a lot of fun while playing with my DIY spotter based on a micro A10 160x120 "Indigo"...
Just enjoying a cool evening on the shore of the Nord Sea and in the Harbor from Den Haag (NL)...






Cheers.

Stéphane

[Lambda]

New thermal sunset attempt, but this time, with a clearer sky.... two versions:





Cheers.

Stéphane

[joe-c]

Compare some Thermal Cameras:
- Flir P65 with 320x240 (interpolated x2 by Camera)
- Jenoptik VarioCam with 320x240
- UniT UTi85A with 80x60 (interpolated to 320x240 by Camera)

[joe-c]

Hi Resolution function of a "Jenoptik VarioCam"
(moving the sensor while taking 4 frames and storing them merged to a 640x480 image)

Additional an SuperResolution image from a TESTO Camera
(they capture some frames in the image and process them while open at PC)

[joe-c]

Compare some Thermal Cameras:
- Flir E4 upgraded to 320x240
- Flir E40 upgraded to 320x240
- Flir B250 upgraded to 320x240 (with additional Filter mod)

[joe-c]

Compare some Thermal Cameras with 320x240 Detector resolution:
- Flir P65
- Flir E40
- Jenoptik VarioCam
- Flir PM695

[CuriousDude]

Hey everyone.  This is my first post!  I think this is the spot to post thermal imaging videos.  I geeked out this past 4th of July (US holiday) and recorded the neighborhood fireworks show with a few thermal imaging cameras.  Hope you enjoy.

Subject: Fireworks and people
Camera: FLIR Boson
Lens: 24mm and 55mm
Original resolution: 640x512
Camera mods: USB adaptor
Image manipulation: None

[zrq]

Further trials of multi-frame/video superresolution for thermal images.
Original video taken with Xtherm T3s, 384x288, processed with the original code and parameters of [1] (www.cse.cuhk.edu.hk/~leojia/projects/mfsr/index.html). This algorithm does not use machine learning.
Certainly such methods can help recover some details, but it took ~12 hours for my computer to finish the reconstruction. Although >7 hours are spent on optical flow estimation, which should be much faster on GPU.

[1] Ma, Ziyang, et al. "Handling motion blur in multi-frame super-resolution." Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition. 2015.

attachments are one of the original video frames and the processed (3rd iteration) image

Edit: Just realized the input frame size is huge... It seems Xtherm app is saving the videos with 1408x1068 resolution for some reason or stupidity. The reconstruction should be much faster if we feed correct 384x288 frames to the program.

Second Edit: Tried to use thermviewer app to capture the video and it can be saved correctly in 384x288, however, the result looks horrible after the reconstruction with the parameters in the original code. I'll try playing with the parameters when I got time.

[Logan]

Subject: Human body
Camera: Argus 2
Lens: from Carnis Viper (unknown focal length, but really wide)
Original resolution: 320x240
Camera mods: Lens replaced, temperature detector removed
Image manipulation: Photo taken from a monitor, not direct capture.

[Bill W]

Your spot temperature sensor is broken !
752°F = 400°C

Slightly unusual, normal failure is to 0°C or 500°C,  the DC out is 10mV / °C so those are 0V or 5V

Bill

[Bill W]

Lens: from Cairns Viper (unknown focal length, but really wide)

Noted elsewhere Fraser found a brochure for the Viper:
https://www.eevblog.com/forum/thermal-imaging/carins-viper/msg1807232/#msg1807232

So the lens in the viper was 72°, and I doubt that the sensor was any other than a 50µm 320x240, so similar dimensions as the BST.
Would make FL around 11mm, the Argus2 lens was 15mm for 50° FoV

Bill

[Logan]

Your spot temperature sensor is broken !

Hi, as I mentioned in the post, I have the temperature detector and the metal converter removed...