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Not sure if I’m being dumb, or if it’s you not explaining it clearly: if Neflix produced low resolution frames from high resolution (4k to 480p), and if these
by p1esk 3y ago
Not sure if I’m being dumb, or if it’s you not explaining it clearly: if Neflix produced low resolution frames from high resolution (4k to 480p), and if these 480p frames are what my TV is receiving - are you saying it’s not downsampling, and my TV would not benefit from this new upsampling method?
- constantcrying 3y agoYour TV never receives per pixel data. Why would you use a NN to enhance the data which your TV has constructed instead of enhancing the data it actually receives?
- p1esk 3y agoOK, I admit I don’t know much about video compression. So what does my TV receives from Netflix if it’s not pixels? And when my TV does “upsampling” (according to the marketing) what does it do exactly?
- itishappy 3y agoIt receives information about the spacial frequency content of the image. If you're unfamiliar, it's definitely worth looking into the specifics of how this works, as it's quite impressive! Here's a few relevant Wikipedia articles, and a Computerphile video: https://en.wikipedia.org/wiki/JPEG#JPEG_codec_example https://en.wikipedia.org/wiki/JPEG#JPEG_codec_example https://en.wikipedia.org/wiki/Discrete_cosine_transform https://en.wikipedia.org/wiki/Discrete_cosine_transform https://www.youtube.com/watch?v=Q2aEzeMDHMA https://www.youtube.com/watch?v=Q2aEzeMDHMA