There is a new technology called NeuroHD, which doubles the video resolution, and also restores details and removes noise in the image.
New neural network technology appeared in VK Video. Thanks to NeuroHD, you can watch both amateur content and professional videos in high definition. It is planned that all videos from the VK Video library will receive high resolution – now more than 250 million videos are uploaded there a year.
The technology provides video conversion at real-time speed and has high performance for efficient use of the computing power of the platform and client devices. At NeuroHD, we were able to find a unique combination of model settings, training data, and infrastructure solutions.
Alexander Tobol, CTO VKontakte, VK Video and VK Calls
At the heart of NeuroHD is a neural network from the generative adversarial network (GAN) family. During her training, two models are used, one of them generates enlarged images, and the other checks the generated images so that they do not differ from the real ones.
Also, the neural network has special elements of temporal consistency, thanks to which it is possible to improve the frame based on information about neighboring fragments.
High-resolution videos are already available in a number of groups and public pages on VKontakte. Their list is constantly expanding: the administrator of any community can send a request to improve the quality of the video. All you need to do is fill out the form.