Content-adaptive color transform For HEVC

The adoption of the Main 10 Profile, a 10 bits consumer profile, in the new HEVC standard jointly developed by ISO/IEC MPEG and ITU-T VCEG opens the opportunity to provide to the consumer a new range of video content, both preserving the source characteristics and delivering content with potentially larger intrinsic quality like UHD or premium HD video. This paper presents a scheme based on a content-adaptive color space transform of input video sequences to improve the video coding efficiency. A simple and fast method to determine optimal transform parameters is proposed. Experimental results are provided on top of the HEVC reference software with Main 10 Profile demonstrating the efficiency of this approach.