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OK, 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
by p1esk 3y ago
OK, 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