상세정보
학술지
Most Frequent Mode for Intra-mode Coding in Video Coding
- 발행일
- 201902
- 출처
- Electronics Letters, v.55 no.4, pp.188-190
- ISSN
- 0013-5194
- 출판사
- IET
- 협약과제
- 19HR2300, 초고실감 미디어 서비스 실현을 위해 HEVC/3DA 대비 2배 압축을 제공하는 5세대 비디오/오디오 표준 핵심 기술 개발 및 표준화, 강정원
- 초록
- The emerging versatile video coding (VVC) standard currently adopts 67 intra-prediction modes in order to improve the intra-prediction performance. The most probable mode (MPM) is used in video coding to encode the prediction mode efficiently based on the modes of the neighbouring blocks. Due to an increase in the number of intra-modes and increase in the resolution of the input sequence, it is necessary to efficiently encode the intra-mode of the current block. This Letter proposes an efficient intra-mode coding method extending MPM called most frequent mode (MFM), which exploits the number of occurrences of the modes in the neighbouring blocks. The proposed MFM derives the most frequent intra-mode. Then the derived MFM is signaled by a flag with a higher priority than MPM. Experimental results show that, compared to the test model of VVC (VTM), the proposed method gives up to 0.48% Bjotegaard-Delta-rate savings for the all-intra-configuration.
- KSP 제안 키워드
- Coding method, Intra prediction, Intra-mode coding, Most Probable Mode, Most frequent, Prediction mode, Video coding, prediction performance, test model