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363 points jay_kyburz | 1 comments | | HN request time: 0.226s | source
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ulrikrasmussen ◴[] No.45022875[source]
I think AI-"upscaled" videos are as jarring to look at as a newly bought TV before frame smoothing has been disabled. Who seriously thinks this looks better, even if the original is a slightly grainy recording from the 90's?

I was recently sent a link to this recording of a David Bowie & Nine Inch Nails concert, and I got a serious uneasy feeling as if I was on a psychedelic and couldn't quite trust my perception, especially at the 2:00 mark: https://www.youtube.com/watch?v=7Yyx31HPgfs&list=RD7Yyx31HPg...

It turned out that the video was "AI-upscaled" from an original which is really blurry and sometimes has a low frame rate. These are artistic choices, and I think the original, despite being low resolution, captures the intended atmosphere much better: https://www.youtube.com/watch?v=1X6KF1IkkIc&list=RD1X6KF1Ikk...

We have pretty good cameras and lenses now. We don't need AI to "improve" the quality.

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brap ◴[] No.45023284[source]
I remember watching an episode of one of my favorite shows on my parents’ brand new TV, and thought to myself something about this episode is off, like the production is cheap, the acting feels worse, even the dialog is bad.

Over time I noticed everything looks cheaper on their TV.

It was the auto-smoothing.

https://en.m.wikipedia.org/wiki/Soap_opera_effect

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spacechild1 ◴[] No.45023967[source]
I had the exact same experience watching Goodfellas on my parents' TV. It felt like a cheap soap opera and I was thoroughly confused about what's happening. Afterwards I did some research and learned about motion interpolation in modern TVs.
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1. loudmax ◴[] No.45025938[source]
A few years ago I was playing around with upscaling options in ffmpeg. For my starting point, I used my DVD of The Road Warrior that I bought in 1999, and wasn't particularly well mastered. I applied some filters to remove film grain, and raised the frame rate to 120 fps by inserting artificial interstitial frames.

Firstly, the filter that removed grain from the film also removed grain from the road, the sand, and Mel Gibson's stubble, all of which there's a lot of in the Road Warrior. Everything looked quite a bit too clean.

But the super high frame rate gave the video a hyper-realistic quality. Not realistic in the sense that I'm watching actual post-apocalyptic survivors. Realistic in the sense that I'm looking at what are clearly actors wearing costumes, and it's hard not to imagine the camera and rigging crew standing just out of frame.

An interesting exercise, but not how I want to experience that movie. Having said that, this was my experience just playing around with ffmpeg on my desktop PC. I wouldn't rule out the possibility that a dedicated professional using the right tools (presumably also ffmpeg) could manage a set of adjustments and upscaling processes that really do create a better experience than the original film.