Originally Posted by Interpolation
Anyway, Sony and LG have been making progress year-over-year on custom resolution support. for example, the a9f officially lists 1080 P 120 Hz as a supported resolution. mainly for gaming purposes, but it helps both my interest in gaming and interpolation. so eventually I believe I'll get what I want, along with other gamers who would like to game at custom resolutions and frame rates.
Founder of Blur Busters / Inventor of TestUFO here.
The refresh rate race will continue for quite a long time.
120fps HFR isn't even the final frontier! Now that resolution and dynamic range has nearly gone retina, this pushes other unturned stones such as refresh rates, especially if it becomes cheaper and cheaper to milk true-Hz (not fake Hz) in the coming decades.
Jump the uncanny valley and try UltraHFR. 240fps realtime at 240Hz. 1000fps realtime at 1000Hz.
It actually "feels" better to my brain than 48fps HFR and 120fps HFR.
- Cinematography of 2030s: Ultra HFR! I have witnessed realtime 1000fps on real 1000Hz
- Ultra HFR 240fps Real Time Video Now Possible Today, 1000fps Tomorrow
- Blur Busters Law And The Amazing Journey To Future 1000Hz Displays
- Photo Proof of Benefits Beyond 120fps HFR
Large leap up the diminishing curve is needed for big jump
60Hz = 1/60sec = 16.7ms
120Hz = 1/120sec = 8.3ms (8.3ms improvement)
1000Hz = 1/1000sec = 1ms (7.3ms improvement)
Basically, CRT motion clarity achieved strobelessly/flickerlessly. Blurless sample-and-hold. No motion blur & no stroboscopics. Film 1000fps @ 1000Hz, 1ms shutter, and get zero stroboscopics & zero blur, and less dizzying than 48fps HFR / 120fps HFR since it jumps the uncanny valley for me. Real life doesn't strobe, real life doesn't inject motion blur above human vision limitations. Ultra-Hz is the closest ever approaching analog-motion (framerateless displays). [email protected]
eliminates camera-blur & display-blur, and avoids wagonwheel/steppy/stroboscopic/phantomarray effects without needing to re-add motion blur to fix the stroboscopics. That is a "have cake and eat it too" effect. And no flicker of traditional yesteryear blur reduction to sear the eyes.
The guaranteed minimum display motion blur of a flickerless display at "X fps at X Hz" is always equal to 1/X sec motion blur -- same as a photographic camera shutter (1/60sec shutter versus 1/120sec shutter versus 1/1000sec shutter). The world's best flickerless 120Hz dislplay can never achieve better than the motion blur of a 1/120sec camera shutter, unless you add flicker (e.g. phosphor, black frames). Instead, having fully continuous display frametimes (with no black frames in between, no black frame insertion, no phosphor, no strobing, no scanning backlight) -- full refresh cycle display persistence exactly match shutter persistence is very magical at fast sports shutter speeds! (filling the entire millisecond with fully unique sports-shutter-speed images). 1000fps UltraHFR a less nauseating to my eyes than 48fps HFR and 120fps HFR.
While I'm also a fan of HFR, for traditional films I have always tended to prefer 24fps film and personally am mixed on interpolation (it has its uses, especially for sports).
I know some people who have eyestrain from motion blur & eyestrain from flicker -- so certainly respect beneficial interpolation uses though (Especially with rapidly improving AI interpolation that is parallax-smart). The only way to reduce low-framerate headaches and motion blur headaches (without using flicker-based motion blur reduction) is to use interpolation (or true HFR) for these individuals who gets searing eye pain from (stutter of low framerates) and also sensitive to flicker (of motion blur reduction). Different humans are sensitive to different thing, excess brightness, excess blur, low framerates, etc. Widely quoted is 12% of the population is colorblind but lesser known is that surprising separate >10% has many forms of undiagnosed motion sensitivities that are solved by various things. You know that grandma who always gets headaches when going to the cinema, or that brother who says that he loves the interpolation because "it's easier on his eyes"? All those old anecdotes. They're true. Little studied, there's actually a segment of population that gets less eyestrain from improved temporal resolution of HFR (even artificially interpolated HFR). Different humans see slightly differently from another. Whether you're seeing a primary a few nanometers differently, or whether you're 20/10, or whether you're slightly color blind, or whether you've got a partially undiagnosed motion-sickness, or a partial weird Akinetopsia, or people unusually sensitive to the blue light (getting headaches unless you go Low Blue Light) while others aren't very sensitive to it at all. There's a wide gamut of different vision sensitivities. So... I totally respect interpolation since it help cures for some people.
So, that means one person's garbage-motion is another person's nirvana of eye-relaxation (solving a headache or two).
That said, genuine HFR and UltraHFR is even superior (especially as standardizations begins to occur) -- the latter preferred. Depending on the material played -- UltraHFR (480fps+) is more easy on my eyes and less nauseating for me than 48fps HFR than 120fps HFR, there is a "leap-beyond-the-uncanny-valley
" effect for some people. Some will always be nauseated at any HFR but for some of us, the nausea disappears after a mid-HFR uncanny valley when all the motion blur disappears (CRT clarity blurless sample-and-hold that is mimicking analog framerateless motion). We weren't able to experimentally discover this until recently. Such research probably should become a University Thesis of the 2020s-2030s (students, feel free to reach out)
Being an ultra-Hz expert has often caused many people to contact me that the reduction of motion blur solved a headache problem for them. It's happening so often that I'm willing to participate, help, or fund research studies on little-researched blur busters topics such as motion blur nausea/sensitivities. One person cares less and go big whoop, yet the next person say it's best thing since sliced bread for them.
Also, being the world's first person to write a mainstream review of a true-480Hz display
, I've been making some really interesting observations with video playback tests.