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研究生:林基焜
研究生(外文):Ji-Kun Lin
論文名稱:基於階層式殘值及成本分析之H.264/AVC編碼器快速框外模式決策
論文名稱(外文):Fast H.264 Inter Mode Decision Based on Hierarchical Homogeneous Detectionand Cost Analysis
指導教授:楊家輝楊家輝引用關係
指導教授(外文):Jar-Ferr Yang
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電腦與通信工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2006
畢業學年度:94
語文別:英文
論文頁數:63
中文關鍵詞:框外殘值齊性模式決策框內
外文關鍵詞:residuemode decisionintrainterhomogeneous
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先進視訊壓縮標準H.264/AVC為了達到高度的編碼效能,提供了七種不同方塊大小的框外(inter)動態補償(motion compensation)模式,以及九種不同方向性的框內(intra)模式預測。最佳編碼過程必須計算所有模式的成本以找出一個擁有最小成本(minimum cost)的最佳編碼模式。模式成本的計算是非常複雜的,在框外模式決策上,七種模式亦即代表了七次的動態估測(motion estimation)運算,本論文為了減少動態估測的次數,提出了兩種技術:以殘值齊性(residual homogeneous)偵測為基礎的提早結束(early termination)策略以及以成本分析(cost analysis)為基礎的模式消除(mode elimination)方法。若將此兩法組成一階層式(hierarchical)的快速模式選擇法,我們即能夠完成一有效的選擇模式以消除不必要的計算量。模擬結果顯示,在沒有明顯效能下降的情況下,對於各種不同性質的影像序列,本法能省下一半以上的動態估測次數。
To achieve the highest coding efficiency, H.264/AVC utlizes seven modes in different block sizes for motion-compensation in inter prediction and nine spatial directional prediction modes in intra prediction. To search the best mode, we have to calculate the costs of all possible modes and choose the best one with the minimum cost. The mode cost calculation process leads to high computational complexity. Seven modes also mean that seven times of motion estimation are needed. In order to reduce the number of times in motion estimation, we propose two techniques, a residual homogeneous detection strategy for early termination and an effective cost analysis for mode elimination. If we combine them together, the mode detection algorithm becomes a hierarchical and fast decision scheme. Thus, the proposed efficient mode selection with residual homogeneous detection and mode elimination process can reduce unnecessary computation. Simulation results show that the proposed methods can reduce encoding time by more than half the times in motion estimation for various kinds of sequences without introducing any considerable performance degradation. 
Table of Contents
Abstract i
Acknowledgement iii
Table of Contents iiv
List of Figures vi
List of Tables viii
1. Introduction 1
1.1 Motivation 1
1.2 Organization for the Thesis 2
2. Basic Concepts of Video CODEC and Inter Mode Decision in H.264/AVC 3
2.1 Basic Concepts for Video Coding 3
2.2 Overview of H.264/AVC Video Coding Standard 9
2.3 Overview of H.264/AVC Inter Mode Decision 23
3. Proposed Residue Analysis and Cost Analysis for Fast Inter Mode Decision 26
3.1 Motivation 26
3.2 Introduction 27
3.3 Related Work on H.264/AVC Mode Decision 28
3.4 Residual Homogeneous Detection for Early Termination 29
3.5 Cost Analysis for Mode Elimination 35
3.6 Brief Conclusion and Summery 40
4. Proposed Fast Mode Decision Scheme for H.264/AVC Encoder 41
4.1 Introduction 41
4.2 Simplified Homogeneous Detection and Motion Vector Reusing Based Fast Mode Decision Scheme 42
4.3 Hybrid Hierarchical Cost Analysis and Homogeneous Detection Based Fast Mode Decision Scheme 44
4.5 Simulation Results 49
4.6 Summary 57
5. Conclusions and Future Work 58
5.1 Conclusions 58
5.2 Future Work 59
References 60
References
[1] ITU-T Rec. H.264 / ISO/IEC 11496-10, “Advanced Video Coding”, Final Committee Draft, Document JVTG050, March 2003.
[2] T. Wiegand, G. J. Sullivan, G. Bjontegaard, and A. Luthra, “Overview of the H.264 / AVC Video Coding Standard,” IEEE Transactions on Circuits and Systems for Video Technology, July 2003.
[3] D. Wu, F. Pan, K. P. Lim, S. Wu, Z. G. Li, X. Lin, S. Rahardja, and C. C. K,” Fast Intermode Decsion in H.264/AVC Video Coding,” IEEE Transactions on Circuits and Systems for Video Technology, July 2005.
[4] C. Grecos and M. Y. Yang,“ Fast Inter Mode Prediction for P Slices in the H264 Video Coding Standad,” IEEE Transactions on Broadcasting, June 2005.
[5] JVT Reference Software JM 10.1: http://iphome.hhi.de/suehring/tml/download/old_jm/
[6] J. F. Yang, S. C. Chang, and C. Y. Chen, "Computation Reduction Algorithms of Motion Estimation for Low Rate Video Coders", IEEE Trans. on Circuit and Systems for Video Technology, vol. 12, no.10, pp.948 – 981, October 2002. 
[7] Y. H. Moon, G. Y. Kim, and J. H. Kim ,“An Improved Early Detection Algorithm for All-Zero Blocks in H.264 Video Encoding,”, IEEE Transactions on Circuits and Systems for Video Technology, August 2005.
[8] Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG, “Comments on Motion Estimation Algorithms in Current JM Software(JVT-Q089),” Joint Video Team (MPEG+ITU) Document, 17th Meeting: Nice, FR, 14-21 October, 2005
[9] Q. Dai; D. Zhu; R. Ding, “Fast mode decision for inter prediction in H.264 “, International Conference on image processing, 24-27 Oct. 2004 Page(s):119 - 122 Vol. 1.
[10] J. Lee and B. Woo, “Fast mode decision for H.264 “, Proceedings of International Conference on Multimedia and Expo, v 2, 2004, pp. 1131-1134.
[11] E. Arsura, L. D. Vecchio, “Fast macroblock intra and inter modes selection for H.264/AVC “, IEEE International Conference Multimedia and Expo, 6-8 July 2005.
[12] F. Pan, X. Lin, S. Rahardja, K. P. Lim, Z. G. Li, Dajun Wu, and Si Wu , “Fast Mode Decision Algorithm for Intraprediction in H.264/AVC Video Coding “, IEEE Transactions on Circuits and Systems for Video Technology, Vol. 15, No. 7, July 2005.
[13] Y. D. Zhang, F. Dai ; S. X. Lin, “Fast 4x4 intra-prediction mode selection for H.264 “, IEEE International Conference on Multimedia and Expo, on Volume 2, 27-30 June 2004 Page(s):1151 - 1154 Vol.2.
[14] F. Pan, X. Lin, S. Rahardja; K.P. Lim, Li, Z.G, “A directional field based fast intra mode decision algorithm for H.264 video coding “, IEEE International Conference on Multimedia and Expo, Volume 2, 27-30 June 2004 Page(s):1147 - 1150 Vol.2.
[15] I. E. G. Richardson, H.264 and MPEG-4 Video Compression: Video Coding for Next-Generation Multimedia. Chichester, UK: John Wiley & Sons, 2003.
[16] T. Wiegand, G. J. Sullivan, G. Bjontegaard, and A. Luthra, “Overview of the H.264/AVC video coding standard,” IEEE Trans. Circuits Syst. Video Technol., vol. 13, pp. 560-576, July 2003.
[17] Z. Zhou, H.264/MPEG-4 AVC Codec Optimization. [Online]. Available: http://students.washington.edu/~zhouzhi/Research_files/image004.jpg
[18] C. H. Lin and C. W. Jen, “Low power parallel Huffman decoding,” Electron. Lett., vol. 34, pp. 240-241, Feb. 1998. 
[19] S. H. Cho, T. Xanthopoulos, and A. P. Chandrakasan, “A low power variable length decoder for MPEG-2 based on nonuniform fine-grain table partitioning,” IEEE Transation on VLSI System., vol. 7, pp. 249-257, June. 1999. 
[20] S. W. Lee and I. C. Park, “A low-power variable length decoder for MPEG-2 based on successive decoding of short codewords,” IEEE Transation System Ⅱ, vol. 50, pp. 73-82, Feb. 2003. 
[21] C. H. Liu, B. J. Shieh, and C. Y. Lee, “A low-power group-based VLD design,” in Proc. IEEE Int. Symp. Circuits and Syst., May 2004, vol. 2, pp. 337-340. 
[22] D. Wu, W. Gao, M. Hu, and Z. Ji, “A VLSI architecture design of CAVLC decoder,” in Proc .IEEE Int. Conf. ASIC, Oct. 2003, vol. 2, pp. 21-24. 
[23] H. C. Chang, C. C. Lin, and J. I. Guo, “A novel low-cost high-performance VLSI architecture for MPEG-4 AVC/H.264 CAVLC decoding,” Proc. IEEE Int. Symp. Circuits and Syst., May 2005, pp. 6110-6112. 
[24] J. H. Jeon, Y. S. Park, and H. W. Park, “A fast variable-length decoder using plane separation,” IEEE Trans. Circuits Syst. Video Technol., vol. 10, pp. 806-812, Aug. 2000.
[25] Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG, “Comments on Motion Estimation Algorithms in Current JM Software(JVT-Q089),” Joint Video Team (MPEG+ITU) Document, 17th Meeting: Nice, FR, 14-21 October, 2005.
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