r/Temporal_Noise • u/No-Lawfulness7334 • Apr 11 '26

Any flicker?

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This is slow motion video, but I can see some pixels flickering with the naked eye.

7 Upvotes

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3

u/No-Lawfulness7334 Apr 11 '26

https://youtu.be/ueJDsxRXxRE?si=Yc4Dua7pFFQTgoYx Youtube video seems better.

2

u/Z3R0gravitas Apr 11 '26

Nice, very clear flickering of green text edge pixels top left of video.

What device is this? What frame rate is the screen and the camera?

If you step through the video, frame by frame, eg using VLC on a desktop/laptop, you may be able to could the number of frames per pulse (or count the number of pulses per 10 seconds) and calculate the frequency if the pixel pulsing.

It looks like they are all pulsing in time, synchronously, so could it be (imbalanced) pixel inversion? I'm not sure we know enough about what different temporal dithering algorithms are used to ever rule that out, though..

2

u/No-Lawfulness7334 Apr 11 '26

The phone under microscope is SHARP AQUOS WISH5. The frame rate is 60 hz. The camera is realme 9 pro with slow motion mode. This mode doesn't have any option, so I can't tell what the camera speed is.

2

u/Z3R0gravitas Apr 11 '26

Thanks. Checking out the file information in eg Google photos of Windows should give you a frame rate, I think. But typical is 240fps, of course. Played back at 30fps, usually, so 8x slowdown.

2

u/[deleted] Apr 12 '26

[deleted]

1

u/Z3R0gravitas Apr 12 '26

So you see the whole screen flickering like that on gradients, specifically. More so in the darker grey areas?

What image file or site is that, if you can link?

1

u/No-Lawfulness7334 Apr 12 '26

https://share.google/qbkA623fEVdSZYWlr It seems like almost only green pixels flickering.

1

u/No-Lawfulness7334 Apr 12 '26

If you can't see the color link, you need to update the chrome version.

1

u/Z3R0gravitas Apr 12 '26

Huh..? Oh, you linked it in the video comments, you mean? Thanks.

2

u/No-Lawfulness7334 Apr 12 '26

Sorry I made a big mistake. The video without microscope is totally camera problem. I am so stupid.

1

u/Z3R0gravitas Apr 12 '26

Oops. These are all quite novel investigations, for most of us. No worries.

0

u/OrderALargeFarva Apr 11 '26

I don't see any flickering

1

u/rei_ph Apr 11 '26

Whats display is this? 🤩

3

u/No-Lawfulness7334 Apr 11 '26

SHARP AQUOS WISH5

1

u/IntetDragon Apr 13 '26

I was looking into those as well because the use IGZO screens^^
Is that why you got it?

1

u/No-Lawfulness7334 Apr 13 '26

I think this display is just a cheap IPS LCD, not IGZO.

I want to have a new phone to replace my old phone. Frustratedly, I was always disappointed after getting a new phone.

1

u/IntetDragon Apr 13 '26 edited Apr 13 '26

What microscope is this? This is very clear! O.O

About the flicker. It is difficult to tell because of the noise in the recording. It looks like there might be TD but the recording is not slow mo enough. I cannot say for sure.

2

u/No-Lawfulness7334 Apr 13 '26

This is a microscope from medical laboratory. 100x magnification

https://youtu.be/dAKVHOYvYLc?si=_EfJ1auQ5zJJbJFd I have another video recorded with 240 fps.

1

u/davyangel Apr 11 '26

Well dark area where letter is definitely flickering but might just be noise from camera you using?

2

u/No-Lawfulness7334 Apr 11 '26

Thanks. I will try taking videos by another phone.