상세정보
학술지
Adaptive Scanning for H.264/AVC Intra Coding
- 저자
- 이영렬, 한기훈, 심동규, 서정일
- 발행일
- 200610
- 출처
- ETRI Journal, v.28 no.5, pp.668-671
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 06MR1100, 지능형 통합정보 방송(SmaR TV) 기술개발, 안치득
- 초록
- In this letter, an adaptive scanning that improves intra coding efficiency in the H.264/AVC standard is proposed. The proposed adaptive scanning utilizes the prediction directions (modes) that include the horizontal and vertical edge information in a block Depending on the prediction directions, the proposed method uses three scanning methods: zigzag scanning, horizontal scanning, and vertical scanning. In the proposed method, horizontal and vertical scanning are used in vertical and horizontal prediction modes, respectively, and the normal zigzag scanning in the H.264 standard is used in all other intra prediction modes. The proposed method reduces the bit rate by approximately 2.5% compared with H.264/AVC, without the degradation of video quality.
- KSP 제안 키워드
- Bit Rate, Coding efficiency, Edge information, Intra Coding, Scanning method, Vertical edge, Video quality, Zigzag Scanning, adaptive scanning, intra prediction mode