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http://dx.doi.org/10.5909/JBE.2020.25.3.353

Performance Improvement of Chroma Intra Prediction  

Park, Jeeyoon (Sungkyunkwan University, Department of Electrical and Computer Engineering)
Jeon, Byeungwoo (Sungkyunkwan University, Department of Electrical and Computer Engineering)
Publication Information
Journal of Broadcast Engineering / v.25, no.3, 2020 , pp. 353-361 More about this Journal
Abstract
VVC (Versatile Video Coding) is a new video compression technique that is being standardized, and it supports HD / UHD / 8K video, and High Dynamic Range (HDR) video with a goal of approximately 2 times higher coding efficiency than the conventional HEVC. It also aims to support a variety of functionalities such as screen content coding, adaptive resolution changes, and independent sub-pictures. In this paper, we investigate the signaling process of intra prediction mode first, and develop an effective coding method of the chroma intra prediction mode. In case of the DM mode, the proposed method simplifies the prediction mode of the chorma intra prediction mode when referring to the angular mode of the luminance block. It can improve coding efficiency of the chroma intra prediction mode, and the proposed process can also consider the size of the block in order to further improve its coding efficiency.
Keywords
Video Compression; Video Coding; VVC; Intra Prediction; Chroma Channel;
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