H.264 的適應性區塊編碼模式選擇策略

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：40

、訪客IP：18.226.187.210

姓名

吳鴻明(HongMing Wu) 查詢紙本館藏

畢業系所

資訊工程學系

論文名稱

H.264 的適應性區塊編碼模式選擇策略
(An adaptive mode decision strategy for marcoblocks in H.264)

相關論文

★ 適用於大面積及場景轉換的視訊錯誤隱藏法	★ 虛擬觸覺系統中的力回饋修正與展現
★ 多頻譜衛星影像融合與紅外線影像合成	★ 腹腔鏡膽囊切除手術模擬系統
★ 飛行模擬系統中的動態載入式多重解析度地形模塑	★ 以凌波為基礎的多重解析度地形模塑與貼圖
★ 多重解析度光流分析與深度計算	★ 體積守恆的變形模塑應用於腹腔鏡手術模擬
★ 互動式多重解析度模型編輯技術	★ 以小波轉換為基礎的多重解析度邊線追蹤技術(Wavelet-based multiresolution edge tracking for edge detection)
★ 基於二次式誤差及屬性準則的多重解析度模塑	★ 以整數小波轉換及灰色理論為基礎的漸進式影像壓縮
★ 建立在動態載入多重解析度地形模塑的戰術模擬	★ 以多階分割的空間關係做人臉偵測與特徵擷取
★ 以小波轉換為基礎的影像浮水印與壓縮	★ 外觀守恆及視點相關的多重解析度模塑

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

在本論文中，我們探討H.264的編碼核心技術，H.264編碼器可以對每一個Marcoblock選擇不同的編碼模式，本論文中，我們將探討如何利用Rate-Distortion Optimization的觀念。論文中會介紹如何用Rate-Distortion Optimization來選擇最佳編碼模式。由於多重編碼模式和其他工具的引進，使得H.264比以往視訊標準有更好的編碼效率；但相對的也要付出更多的計算資源，以獲得更好的視訊品質。
由於各種編碼模式出現的機率不同，我們主要是根據Marcoblock mode 出現頻率的不同而提出模式選擇策略，並且提供一系列的簡化準則：如Dynamic mode checking、 early termination、 pseudo motion vector等；根據這些準則，期望能在付出一點畫質損失的代價而增加編碼效率。

摘要(英)

In this thesis, we study the core of the encoding process for H.264. To improve the performance of H.264 encoding, we allow H.264 encoder to select different decision modes for variant encoding process in each marcoblock. Based on the multiple encoding modes and more developed tools, H.264 has better coding efficiency than the previous video standard; however, such an improvement on H.264 needs more computation resources to get better video quality.
In this thesis, we propose the mode selection strategy, early termination criterion, fast intra/inter mode switch, dynamic mode checking, and pseudo motion vector prediction to speed up the encoding. The mode selection strategy is the core of this study. The selection criterion is based on Rate-Distortion Optimization, and the strategy is based on the principle of probability distribution.
In experiments, we make a comparison between the standard method and proposed method and achieve the balance between the image quality and the encoding speed.

關鍵字(中)

★ 模式選擇
★ H.264

關鍵字(英)

★ Rate-Distortion Optimization
★ Mode Descision
★ H.264

論文目次

Contents
Abstract ii
Contents iii
List of Figures v
List of Tables vii
Chapter 1 Introduction 1
1.1 The brief history of video compression 1
1.2 Motivation 2
1.3 System overview 3
1.4 Organization of the thesis 4
Chapter 2 Overview of H.264 Mode Decision 5
2.1 Intra prediction 7
2.1.1 4

參考文獻

[1] Chan, M. H., Y. B. Yu, and A. G. Constantinides, “Variable size block matching motion compensation with applications to video coding”, Communications, Speech and Vision, IEE Proceedings I, vol.137, pp.205-212, Aug. 1990.
[2] Sullivan, G. J. and T. Wiegand, “Rate-distortion optimization for video compression,” IEEE Signal Processing Magazine, vol.15, pp.74-90, Nov. 1998.
[3] Injong, R., G. R. Martin, S. Muthukrishnan, and R. A. Packwood, “Quadtree-structured variable-size block-matching motion estimation with minimal error,” IEEE Trans. on circuits and systems for video technology, vol.10, pp.42-50, Feb. 2000.
[4] ITU Telecom, Video Coding for Low Bitrate Communication, ITU-T Recommendation H.263, 1996.
[5] ITU-T Video Coding Experts Group, H.26L Test Model Long Term Number 9, TML-9, Dec. 2001.
[6] ITU-T Recommendation H.264/ISO/IEC 11496-10, Advanced Video Coding, Final Committee Draft, Document JVT-E022, Sep. 2002.
[7] MPEG Video Group, MPEG-4 Video Verification Model, Version 18.0, ISO/IEC JTC1/SC29/WG11 N3908, Jan. 2001.
[8] Seferidis, V. and M. Ghanbari, “Generalised block-matching motion estimation using quad-tree structured spatial decomposition,” IEE Proc. Vision, Image, and Signal Processing, vol.141, pp.446-452, Dec. 1994.
[9] Packwood, R. A., M. K. Steliaros, and G. R. Martin, “Variable size block matching motion compensation for object-based video coding,“ in Proc. on 6th Int. Conf. Image Processing and Its Applications, July 1997, vol.1, pp.56-60.
[10] Tu, Y. K., J. F. Yang, Y. N. Shen, and M. T. Sun, “Fast variable-size block motion estimation using merging procedure with an adaptive threshold,“ in Proc. IEEE Int. Conf. Multimedia and Expo., Baltimore, vol.2, July 2003, pp.789-792.
[11] Puri, A., H.-M. Hang, and D. L. Schilling, “Interframe coding with variable block-size motion compensation,' in Proc. IEEE Global Commun. Conf., Tokyo, Japan, Nov.1987, pp.65-69.
[12] Lee, J. and B. Jeon, “Fast mode decision for H.264,“ in Proc. 2004 IEEE Int. Conf. Multimedia and Expo, ICME '04, Jun. 2004, vol.2, pp.1131-1134.
[13] Han, K.-H. and Y. L. Lee, “Fast macroblock mode decision in H.264 “ in Proc. TENCON 2004, Nov.2004, vol.1, pp.347-350.
[14] Kim, Y.-H., J.-W. Yoo, S.-W. Lee, J. Shin, J. Park, and H.-K. Jung, “Adaptive mode decision for H.264 encoder“, Electronics Letters, vol.40, no.19, pp.1172-1173, Sep. 2004.
[15] Richardson, I. E. G., H.264 and MPEG-4 Video Compression, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, 2003.

指導教授

曾定章(Din-Chang Tseng)

審核日期

2006-7-19

推文