Search found 37 matches
- 04 Apr 2024, 02:22
- Forum: General — Displays, Graphics & More
- Topic: [Research] The speed of sight: Individual variation in critical flicker fusion thresholds
- Replies: 0
- Views: 292
[Research] The speed of sight: Individual variation in critical flicker fusion thresholds
Note: the individual flicker fusion threshold depends strongly on various factors such as log of brightness, visual size of bright object, excentricity etc. this is about variations between people keeping those above factors constant. Abstract: The critical flicker fusion threshold is a psychophysic...
- 21 Apr 2017, 02:05
- Forum: General — Displays, Graphics & More
- Topic: OLED 4K 30" 60 Hz - Dell UP3017Q
- Replies: 68
- Views: 45353
Re: OLED 4K 30" 60 Hz - Dell UP3017Q
No, the double flash would still be visible. The only way to remove it would be with some kind of extrapolation, like various time warp techniques in VR headsets.
With 60fps@85hz you'd get either severe tearing or judder, so that's a no-no.
With 60fps@85hz you'd get either severe tearing or judder, so that's a no-no.
- 15 Jun 2014, 20:32
- Forum: Area 51: Display Science, Research & Engineering
- Topic: Highest perceivable framerate? [good discussion]
- Replies: 21
- Views: 23043
Re: Highest perceivable framerate? [good discussion]
Maybe I was using the wrong word. Maybe eye-adaptive motion blur would be better. I didn't condone hold-type blur. What I was referring to was motion blur simulating real life. We perceive motion blur if the angular velocity of the gaze direction differs from the angular velocity of a object (Obviou...
- 12 Jun 2014, 16:51
- Forum: Area 51: Display Science, Research & Engineering
- Topic: Highest perceivable framerate? [good discussion]
- Replies: 21
- Views: 23043
Re: Highest perceivable framerate? [good discussion]
In my agreemend with flood, I feel that eye-tracking motion blur is the only real way to solve motion perception beyond using unpractical refresh rates. And while the eye-tracking needs to be fast, it doesn't need to be sub-ms as perception during saccades is limited and contrast sensitivity drops. ...
- 30 Mar 2014, 06:11
- Forum: Area 51: Display Science, Research & Engineering
- Topic: Understanding Persistence versus Motion Blur
- Replies: 5
- Views: 19323
So what persistence should I choose (cont.)
I think a good way to do this is to post research here, and discuss and fix it first (i.e. mini-"peer review") Then after a while, with the info collected, post an blog article later. Edit 4. How low can I set persistence and still achieve the screen brightness I need?. First, what screen brightness...
- 29 Mar 2014, 16:57
- Forum: Area 51: Display Science, Research & Engineering
- Topic: Understanding Persistence versus Motion Blur
- Replies: 5
- Views: 19323
So what persistence should I choose
Very nice. Let me try to add to that, I hope you don't mind. 1. How low of a persistence do I need to maintain image detail? We want to minimize motion blur during eye tracking, as mark explained. To not lose any resolution, we need to reduce blur below 1 pixels. Maximum smooth pursuit for humans is...
- 17 Mar 2014, 14:15
- Forum: High Frame Rate Video (HFR, UltraHFR, 120fps, 240fps, 1000fps)
- Topic: Resolution of your eyes [YouTube video]
- Replies: 22
- Views: 28216
Re: Resolution of your eyes [YouTube video]
Heres an interesting video guys :P https://www.youtube.com/watch?v=4I5Q3UXkGd0 While the human visual system - uses (micro-)saccadic movement to increase apparent resolution, this also increases the apparent resolution of video if the framerate isn't too low. So for games/film we only need to care ...
- 11 Mar 2014, 10:57
- Forum: Area 51: Display Science, Research & Engineering
- Topic: Math Formulas for phosphor decay & LCD GtG [provided!]
- Replies: 19
- Views: 24903
Re: Seeking Math Formulas for phosphor decay & LCD GtG
The curves (strobe compensated) are different for top edge and bottom edge of the screen, due to the asymmetry between the consecutive scanout, versus the all-at-once strobe. The transitions are fresher at bottom edge, than center of the screen. That would be an easy fix, just set the delay to t = ...
- 08 Mar 2014, 16:43
- Forum: Area 51: Display Science, Research & Engineering
- Topic: Math Formulas for phosphor decay & LCD GtG [provided!]
- Replies: 19
- Views: 24903
Re: Seeking Math Formulas for phosphor decay & LCD GtG
Here's a selection of papers. I didn't have time to simulate it yet. P-25: Inter-Grey-Level Response Times of a Liquid Crystal Display (includes overdrive, without the need for LUTs) The inter-grey-level response times of an LCD are studied using two different approaches: a 3-D finite-elements dynam...
- 08 Mar 2014, 15:31
- Forum: Area 51: Display Science, Research & Engineering
- Topic: Math Formulas for phosphor decay & LCD GtG [provided!]
- Replies: 19
- Views: 24903
Re: Seeking Math Formulas for phosphor decay & LCD GtG
I haven't looked into G2G. I wouldn't rule it out to find something yet.
Edit: in one minute, I found this:
Mathematical modeling of the LCD response time
http://hal.archives-ouvertes.fr/docs/00 ... _20087.pdf
Edit: in one minute, I found this:
Mathematical modeling of the LCD response time
http://hal.archives-ouvertes.fr/docs/00 ... _20087.pdf