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서지반출
GOP Adaptation Coding of H.264/SVC Based on Precise Positions of Video Cuts
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  • GOP Adaptation Coding of H.264/SVC Based on Precise Positions of Video Cuts
  • GOP Adaptation Coding of H.264/SVC Based on Precise Positions of Video Cuts
저자명
Liu. Yunpeng,Wang. Renfang,Xu. Huixia,Sun. Dechao
간행물명
KSII Transactions on internet and information systems : TIIS
권/호정보
2014년|8권 7호|pp.2449-2463 (15 pages)
발행정보
한국인터넷정보학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Hierarchical B-frame coding was introduced into H.264/SVC to provide temporal scalability and improve coding performance. A content analysis-based adaptive group of picture structure (AGS) can further improve the coding efficiency, but damages the inter-frame correlation and temporal scalability of hierarchical B-frame to different degrees. In this paper, we propose a group of pictures (GOP) adaptation coding method based on the positions of video cuts. First, the cut positions are accurately detected by the combination of motion coherence (MC) and mutual information (MI); then the GOP is adaptively and proportionately set by the analysis of MC in one scene. In addition, we propose a binary tree algorithm to achieve the temporal scalability of any size of GOP. The results for test sequences and real videos show that the proposed method reduces the bit rate by up to about 15%, achieves a performance gain of about 0.28-1.67 dB over a fixed GOP, and has the advantages of better transmission resilience and video summaries.