지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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H.264 adopted many compression tools to increase image data compression efficiency such as B frame bi-directional predictions, the direct mode coding and so on. Despite its high compression efficiency, H.264 can suffer from its long coding time due to the complicated tools of H.264. To realize a high performance H.264, several fast algorithms were proposed. One of them is adaptive fast direct mode decision algorithm using mode and Lagrangian cost prediction for B frame in H.264/AVC (MLP) algorithm which can determine the direct coding mode for macroblocks without a complex mode decision process. However, in this algorithm, macroblocks not satisfying the conditions of the MLP algorithm are required to process the complex mode decision calculation, yet suffering a long coding time. To overcome the problem, this paper proposes a fast direct mode prediction algorithm. Simulation results show that the proposed algorithm can determine the direct mode coding without a complex mode decision process for 42% more macroblocks and, this algorithm can reduce coding time by up to 23%, compared with Jin’s algorithm. This enables to encode B frames fast with a less quality degradation.
목차
Abstract
1. 서론
2. MLP 고속 직접모드 결정 알고리즘
3. 코딩 모드 영상 특성기반의 고속 직접모드 결정 알고리즘
4. 실험 결과
5. 결론
감사의 글
참고문헌
참고문헌 (10)
참고문헌 신청
1. [학술지(정기간행물)] - Ayra Panganiban / 2011 / Wavelet-based Feature Extraction Algorithm for an Iris Recognition System / JIPS(Journal of Information Processing Systems) 7 (3) : 425 ~ 434
2. [학술지(정기간행물)] - Jung-Hee Seo / / Data-Hiding Method using Digital Watermark in the Public Multimedia Network / Journal of Information Processing Systems 2 (2) : 82 ~ 87
3. [학술지(정기간행물)] - Y. Im / 2011 / MPEG-2 Video Watermarking in Quantized DCT Domain / Journal of IWIT 11 (1) : 81 ~ 86
4. [학술지(정기간행물)] - T. Wiegand / 2003 / Overview of the H.264/AVC video coding standard / IEEE Trans. Circuits Syst. Video Technol 13 (7) : 560 ~ 576
5. [학술지(정기간행물)] - M. Flierl / 2003 / Generalized B pictures and the draft H.264/AVC video-compression standard / IEEE Trans. Circuits Syst. Video Technol 13 (7) : 587 ~ 597
2. [학술지(정기간행물)] - Jung-Hee Seo / / Data-Hiding Method using Digital Watermark in the Public Multimedia Network / Journal of Information Processing Systems 2 (2) : 82 ~ 87
3. [학술지(정기간행물)] - Y. Im / 2011 / MPEG-2 Video Watermarking in Quantized DCT Domain / Journal of IWIT 11 (1) : 81 ~ 86
4. [학술지(정기간행물)] - T. Wiegand / 2003 / Overview of the H.264/AVC video coding standard / IEEE Trans. Circuits Syst. Video Technol 13 (7) : 560 ~ 576
5. [학술지(정기간행물)] - M. Flierl / 2003 / Generalized B pictures and the draft H.264/AVC video-compression standard / IEEE Trans. Circuits Syst. Video Technol 13 (7) : 587 ~ 597
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UCI(KEPA) : I410-ECN-0101-2013-560-003550849