By: Christos G. Bampis, Li-Heng Chen and Zhi Li
When you are binge-watching the latest season of Stranger Things or Ozark, we strive to deliver the best possible video quality to your eyes. To do so, we continuously push the boundaries of streaming video quality and leverage the best video technologies. For example, we invest in next-generation, royalty-free codecs and sophisticated video encoding optimizations. Recently, we added another powerful tool to our arsenal: neural networks for video downscaling. In this tech blog, we describe how we improved Netflix video quality with neural networks, the challenges we faced and what lies ahead.
How Can Neural Networks Fit Into Netflix Video Encoding?
There are, roughly speaking, two steps to encode a video in our pipeline:
- Video preprocessing, which encompasses any transformation applied to the high-quality source video prior to encoding. Video downscaling is the most pertinent example herein, which tailors our encoding to screen resolutions of different devices and optimizes picture quality under varying network conditions. With video downscaling, multiple resolutions of a source video are produced. For example, a 4K source video will be downscaled to 1080p, 720p, 540p and so on. This is typically done by a conventional resampling filter, like Lanczos.
- Video encoding using a conventional video codec, like AV1. Encoding drastically reduces the amount of video data that needs to be streamed to your device, by leveraging spatial and temporal redundancies that exist in a video.
To continue reading this article, click here.
This is the first time I heard about Neural Networks. Anyway, it is great to know your effort and it is evaluated to try.
Thank you for sharing a very meaningful article, I think it will be very helpful for me and everyone. Play waffle game online free.
It’s great to be here with everyone; I’ve learned a lot from what you share, and I just wanted to say thanks because the information and knowledge that can be found here are very helpful to me. nytimes crossword
Wow, awesome. This is exactly what I was looking for. fireboy and watergirl
My introduction to the concept of neural networks comes at this point in time. In any case, it is really satisfying to learn that your efforts are being taken into consideration and assessed. color by number
Playing games is fun. With the challenge that it brings, fall guys 3 is a game that people of all ages can enjoy. Try to beat the other people. To win, you have to compete in crowded areas and get through chapters with obstacles.
Such a fascinating article on a lovely day like today; thank you for your efforts in creating such a beneficial article. flvs flex login