Comment by dahart
3 days ago
> The eye perceives at about 10 hz.
Not sure what this means; the eye doesn’t perceive anything. Maybe you’re thinking of saccades or round-trip response times or something else? Those are in the ~100ms range, but that’s different from whether the eye can see something.
This paper shows pictures can be recognized at 13ms, which is faster than 60hz, and that’s for full scenes, not even motion tracking or small localized changes. https://link.springer.com/article/10.3758/s13414-013-0605-z
From that, then, we conclude that somehow 500Hz is important or meaningful?
Is it only 500 or 10, and nothing in between? You could have argued against 500 with the GP comment instead of countering with something that’s demonstrably untrue. I handed you the study you asked for.
Movies’ 24Hz is too slow, just watch a horizontal pan. 24Hz is good enough for slow things, but it was chosen that low for cost reasons, not because it’s the limit of perception. US TV’s 60hz interlace isn’t the limit either, which is also shown with horizontal pans. 60hz progressive looks different than 30hz, just watch YouTube or turn on frame interpolation on a modern TV.
The limit of meaningful motion tracking perception might be in the 100-200Hz range. The reason 500Hz is meaningful to gamers is, I think, because of latency rather than frequency. Video systems often have multiple frames of latency, so there actually is a perceptible difference to them between 60Hz and 500Hz.