General > General Technical Chat
4K TV Woohoo!
NiHaoMike:
--- Quote from: MosherIV on September 15, 2020, 07:49:04 am ---Btw, the eye cannot see in 4k! Apparently 2k is about the limit for human eye, so you can see a difference between hd and 4k but you will not see the full detail of 4k. Hd is 1.5k, so not far off what the eye can see.
--- End quote ---
I don't think it's that simple, for example the "pixel density" of the eye is not a uniform grid like it is for a display or camera. The equivalent pixel count for the average human eye is anywhere from around 10MP to well over 500MP depending on how you're counting it.
paulca:
--- Quote from: NiHaoMike on September 15, 2020, 01:57:53 pm ---
--- Quote from: MosherIV on September 15, 2020, 07:49:04 am ---Btw, the eye cannot see in 4k! Apparently 2k is about the limit for human eye, so you can see a difference between hd and 4k but you will not see the full detail of 4k. Hd is 1.5k, so not far off what the eye can see.
--- End quote ---
I don't think it's that simple, for example the "pixel density" of the eye is not a uniform grid like it is for a display or camera. The equivalent pixel count for the average human eye is anywhere from around 10MP to well over 500MP depending on how you're counting it.
--- End quote ---
I agree. I have read this bunk and debunked a lot. It's complex. Something like a thumbs size at arms length right in the centre of our vision is extremely high res. As it moves away it drops so that at our extreme it's less than VHS quality, but brilliant at motion detection. But the human mental picture is completely synthetic. Our eyes will dart around and build a higher resolution image than we can actually see.
Think about it. Right now reading this, you "think" you can see all the text in the message. You can't. It's your snythetic image. Force yourself to stare at one word and without letting you eye move for a few seconds the rest of the page will blur to more of the reality of what you can see.
It also, of course depends on how far you are sat from the TV and how large the TV is.
I worked in a company that made phone media streaming services (Pace) and customers complained that HD 1080p videos were downscaled to 480p on their 4.5" mobile screen.... seriously.
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