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《Journal of University of Electronic Science and Technology of China》 2004-03
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A Real Time Intra-Update Method Based on Rate-Distortion Optimization

Peng Qiang,Deng Yun,Zhu Changqian (School of Computer and Communications Engineering, Southwest Jiaotong University Chengdu 610031)  
A rate-distortion computation model is established for approximately estimating the total quantization distortion of one frame, and a new real time Intra-update criterion is proposed. Through comparing the increased quantization distortion and reduced propagation distortion by intra-updating, the encoder can quickly decide which macroblock need to be intra-updated. Simulation results show that the performance of proposed algorithm, which reduces the computational complexity significantly, achieves the same or even better gains over traditional rate-distortion based Intra-update methods.
【Fund】: 铁道部科技研究开发项目(2003X040-A)
【CateGory Index】: TN919.81
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【Co-references】
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1 LIANG Ying (Software Department, Beijing Broadcasting Institute, Beijing 100024,P.R.China);The JPEG2000 Still Image Core Compression Algorithm[J];Journal of Beijing Broadcasting Institute;2003-03
2 LI Ye-li,LU Li-Kun,LIN Zhi-ji (Beijing Institute of Graphic Communication, Beijing 102600,China);The Implementation of DSP-based Wavelet Transform Arithmetic[J];Journal of Beijing Institute of Graphic Communacation;2005-01
3 HUANG Tie-jun, GAO Wen (Institute for Computing Technology,Chinese Academy of Sciences AVS Workgroup, Beijing 100080, China);Background and IPR Status of AVS[J];TV Engineering;2005-07
4 LIANG Fan (Department of Electronics and Communication Engineering, Sun Yat-sen University, AVS Working Group, Guangzhou 510275, China);Technical Features of the AVS Video Standard[J];TV Engineering;2005-07
5 MA Zhan, JIN Xin, LIU Wen-yu, YU Li, ZHU Guang-xi (Wuhan National Laboratory for Optical Electronics, Huazhong Univ. of Sci. & Tech. Wuhan 430074, AVS Working Group, China);Overview of AVS-M Video Coding Standard[J];TV Engineering;2005-07
6 ZHANG Hui-guo1,3, ZHOU Jing-ye1, LIU Dong-hua2,3, CHEN Yi-qiang3,4 (1. College of Information Engineering, Xiangtan University, Xiangtan Hunan 411105, China; 2. National University of Defense Technology, Changsha 410073, China; 3. Shanghai Institute of Computing Technology, CAS Workgroup, Shanghai 201203, China; 4. Institute of Computing Technology, CAS Workgroup, Beijing 100080, China);Implementation of AVS-M Decoder on BREW Platform[J];TV Engineering;2005-08
7 ZHOU Da-shan, LI Hua, ZHANG Shu-fang, HOU Ling, DENG Yu (Tianjin University, Tianjin 300072, China);Design and Implementation of AVS-M Video Decoder[J];TV Engineering;2005-08
8 Li Bo (Zhanjiang Ocean University, Zhanjiang 524025, China);A Wavelet and Area Based Method for Image Mosaic[J];It Age;2005-04
9 WENG Nan shan,CAI De jun (Dept of Electronic & Information Engineering,Huazhong Univ.of Scie. & Tech.,Wuhan 430074,China);Video Object Segmentation and Two Kinds of Object-Oriented Video Coder[J];ACTA ELECTRONICA SINICA;2000-10
10 LI Chu xiang,WANG Zhang lei,LU Jian hua (Department of Electronic Engineering,Tsinghua University,Beijing 100084,China);Digital Terrestrial TV Broadcasting System with Enhanced Robustness[J];Acta Electronica Sinica;2001-S1
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