Is this the stroboscoping effect?

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Terepin
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Is this the stroboscoping effect?

Post by Terepin » 02 Dec 2022, 06:59

https://www.youtube.com/shorts/QZ6KIB79-Kk

Still screenshot: https://imgur.com/a/4UgzCl2

The monitor in question is Acer Predator XB273UNX. I see this effect everywhere, but only on fast moving objects, be it scrolling web sites or gaming. And it is annoying as hell. I assume that there is nothing that can be done?

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Discorz
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Re: Is this the stroboscoping effect?

Post by Discorz » 02 Dec 2022, 07:37

Terepin wrote:
02 Dec 2022, 06:59
The monitor in question is Acer Predator XB273UNX. I see this effect everywhere, but only on fast moving objects, be it scrolling web sites or gaming. And it is annoying as hell. I assume that there is nothing that can be done?
Yes, this is stroboscopic effect and not much can be done about it at this point in time. Only solution is ultra high refresh rate and frame rate, 1000Hz minimum. In faster motion effect is more pronounced so it requires even more Hz/fps.

Image

Note that increasing Hz/fps doesn't "remove" the effect, it just blends multiple images into continuous blur.

Discussion on stroboscopic effect from earlier:
viewtopic.php?p=86343#p86343
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Terepin
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Re: Is this the stroboscoping effect?

Post by Terepin » 02 Dec 2022, 07:41

Damn. Oh well. Thank you for the confirmation.

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Discorz
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Re: Is this the stroboscoping effect?

Post by Discorz » 02 Dec 2022, 08:03

Yeah, it's a hard one.

Real way to remove it is by eye tracking the object instead of fixing eyes position. Which is unrealistic solution. Because we move our eyes however it naturally comes to us.
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yuri
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Re: Is this the stroboscoping effect?

Post by yuri » 02 Dec 2022, 12:21

And what about the Time that stroboscopic stay en screen ? Does is decrease/increase with MPRT ?

Or it's just framerate ?

Terepin
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Re: Is this the stroboscoping effect?

Post by Terepin » 02 Dec 2022, 14:14

EDIT: Nevermind. My dumb ass just forgot to disable ULMB in drivers. Oops.
Last edited by Terepin on 02 Dec 2022, 17:24, edited 1 time in total.

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Discorz
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Re: Is this the stroboscoping effect?

Post by Discorz » 02 Dec 2022, 14:19

It doesn't.

I believe its up to eye/brain for how long it stays visible for. Meaning you can't affect it.

I understand what you're seeking for but its not possible unfortunately. You want perfect, trail-less clarity of eye tracked motion while fix-gazing. I guess you could achieve something similar with absurdly slow GtG where moving object would blend into background and appear only when not moving. But that is not way to go.

You can play around with camera shutter to see how our eye compares to it. Run TestUFO with fast vs slow moving speeds at long vs short shutter speeds.
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Terepin
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Re: Is this the stroboscoping effect?

Post by Terepin » 02 Dec 2022, 14:42

OK, now this is interesting. I am testing this in Back 4 Blood and I noticed that if I limit the framerate to just 144 FPS, I can no longer notice the effect. In other words: the higher the framerate, the more noticeable it becomes. But according to article about the effect, it should be the other way around. Am I missing something here?

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Chief Blur Buster
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Re: Is this the stroboscoping effect?

Post by Chief Blur Buster » 03 Dec 2022, 01:48

I see it at all frame rates, even 240Hz and 360Hz.

It is possibly a function of how close the stroboscopic stepping distances are; the higher the frame rate and Hz, the closer the gaps are. And some humans with certain peripheral vision behaviors may see the stroboscopic effect differently at different frame rates.

Not everyone sees the same way as the next human.

Some sees motion blur more easily.
Others sees tearing more easily.
Yet others sees stroboscopic stepping effects easily.

It's easier to see at higher contrast, e.g. Cyberpunk 2077 style neon, and mouselooking around very fast.
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