Originally Posted by David Susilo
Whereas I agree that 480i upscaled to 1080p looks vastly inferior to native 1080p, upscaled VERY GOOD 1080p to 4K is not that much different than native 4K.
If you're in the 404/Elgin Mills area, come and visit UpdateTv and Stereo and look at the upscaling quality yourself. It's amazing.
It depens on the size of the monitor, the quality of the panel, and other image manipulation carried out in the signal chain.
When most concluded that upscaled DVDs were fine enough, TVs sold pretty much maxed out at 42". And panel technology wasnt where it is today.
When looking at upscaled 1080p on a 4K monitor, you would have to look at larger sizez. And here we have some aspects to take in to account. At 100" 4K is still enough so you wont see pixels even when you are really close. So when 1080p is upscaled, you still get that advantage. But contours wont be as sharp, and there is less detail. When it comes to less details, that depends on what the material is displayed, with a lot of movement, you wont be able to notice the difference in details (unless the upscaler produces motion artifacts), but in more static images in backgrounds of foreground, your eyes can concieve more details than 1080p gives. But it clearly depens on the size of your display (even if its said that even on smaller displays 4K looks more natural, and I guess that has a lot to do with contours, and sharpness, that has nothing to do with your eves "resolution" at the viewing distance).
8K seems a bit like overkill today, but it has other advantages.
With 8K, you can have a video recorder with native 8K resolution, and take stills with good resolution (or grab frames from video, if its uncompressed).