AVS2-video coding standard - An application-oriented and high perforamce video coding standard

After years of hard work, the first generation of Audio-video coding standard (AVS1) has become an international standard and been widely used in digital satellite HDTV broadcasting. However, the growing popularity of high resolution videos and the emergence of 3D, scalable, 10-bit and stationary scene videos raise a higher requirement for video coding standards. The second generation of Audio-video coding standard (AVS2) is an application-oriented video coding standard aiming at higher video coding efficiency. In AVS2, different profiles are set for different applications, such as main profile for general application, especially for high resolution videos, and scene profile for stationary scene videos. Coding tools are designed by jointly considering the coding complexity and performance gain. This paper will give an overview of AVS2. Results show that main profile has as high as 49.5% and 44.0% bit rate saving in non-low-delay and low-delay configurations compared to AVS1. And scene profile has as much as 52.7% and 28.5 % coding gain in non-low-delay and low-delay configuration compared to main profile.