臺灣博碩士論文加值系統

為了達到低成本、低能量消耗與小型化的數位家庭處理中心，尤其是針對多媒體程式，我們在這篇論文提出了一種可擴展的皮包型叢集計算系統。我們以低成本、低能量消耗與小型的微處理器當作叢集式電腦的計算節點，來增加計算能力與加速H.264 的影像處理。我們分析 H.264 在叢集式系統各節點上平行化編碼的架構。在此叢集式系統上執行多媒體的應用程式，由實驗與分析結果顯示可大幅提昇即時影像處理的效率。

In order to obtain a low cost, low power consumption and small sized digital home processing center, especially for multimedia applications, we propose a scalable wallet-size cluster computing system in this thesis. The proposed system uses the low cost, low power consumption and small sized microprocessors as computing nodes to form a cluster system to increase the computing power and to accelerate the H.264 video processing. We analyze the encoder scheme of H.264 to each node of the cluster system for processing in parallel. To run multimedia applications in the cluster system, an efficient real time video processing is achieved.

Acknowledgement -i
Abstract in Chinese -ii
Abstract -iii
Table of Contents -iv
List of Tables-vii
Chapter 1 Introduction -1
Chapter 2 Overview of the H.264 Standard-2
2.1 Profiles and Levels-5
2.1.1 Baseline Profile-6
2.1.2 Main Profile -6
2.1.3 Extended Profile-7
2.2 Reference Pictures -8
2.3 Slices -8
2.4 Macroblock Prediction-11
2.4.1 Intra Prediction-11
2.4.2 Inter Prediction-11
2.4.3 Tree structured motion compensation-11
2.5 H.264 CODEC -12
Chapter 3 Wallet-Size Cluster for H.264 Encoding-13
3.1 The High Speed Parallel Processing System (HSPPS) Architecture -13
3.2 The H.264 Encoding -14
3.3 H.264 Encoder Structure-16
3.3 Encode Models-20
Chapter 4 Performance Evaluation -26
4.1 Experimental Environment -26
4.2 Experimental Results -27
4.2.1 Experiment 1: MDFile without RateControl -28
4.2.2 Experiment 2: MDFile with RateControl -30
4.2.3 Experiment 3: FMFile without RateControl -32
4.2.4 Experiment 4: FMFile with RateControl -34
4.3 Discussion -36
Chapter 5 Conclusion and Future works-42
Reference -43

[1] Draft ITU-T Recommendation and Final Draft International Standard of Joint Video Specification (ITU-T Rec. H.264/ISO/IEC 14 496-10 AVC), Mar. 2003.
[2] A. Tamhankar and K. R. Rao, ”An overview of H.264/MPEG-4 Part 10,” The 4th
EURASIP Conference focused on Video/Image Processing and Multimedia Communications, Vol. 1, pp.1-51 July 2003.
[3] A. Chang, O. C. An, and Y. M. Yeung, “A novel approach to fast multi-frame
selection for H.264 video coding,” Proceedings of 2003 IEEE International
Conference on Acoustics, Speech, and Signal Processing, Vol. 3, pp. 413-416, April 2003.
[4] http://www.addpac.com/pdf/H.264%20Overview_eng.pdf
[5] http://www.vcodex.fsnet.co.uk/h264_overview.pdf
[6] http://micetek.com/
[7] http://web.csie.chu.edu.tw/~cs87668/cluster.htm
[8] http://bs.hhi.de/~suehring/tml/download/
[9] S. Ge, X. Tian, and Y. K. Chen, “Efficient multithreading implementation of H.264 encoder on intel hyper-threading architectures,” ICICS-PCM 2003, Vol. 1, pp.469 – 473, 15-18 Dec. 2003. 43