Bit-rate reduction of MPEG compressed video

被引：0
|
作者：
Fatemi, O [1 ]
Ghandi, MM [1 ]
Modirzadch, ME [1 ]
Ghandi, M [1 ]
机构：
[1] Univ Tehran, Dept Elect & Comp Engn, Tehran, Iran
来源：
IEEE CCEC 2002: CANADIAN CONFERENCE ON ELECTRCIAL AND COMPUTER ENGINEERING, VOLS 1-3, CONFERENCE PROCEEDINGS | 2002年
关键词：
dvideo compression; compressed domain processing; video signal processing; bit-rate reduction;
D O I：
10.1109/CCECE.2002.1013090
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Compressed video processing is becoming increasingly important in many digital video applications. There are two main approaches for compressed video processing. The first approach is called re-encoding and the second type algorithms are called Compressed Domain Processing (CDP). Bitrate reduction is a very common process in video processing applications. In this research, bit-rate reduction process is implemented using SNR-scaling scheme. We have implemented enhanced compressed domain processor software in order to reduce the MPEG video bit-rate in the compressed domain. The software includes two additional algorithms to achieve better quality. The first is to remove the propagated requantization noise by calculating the noise with DCT domain Motion Compensation (MC-DCT) method And the second is an optimized rate-control to improve the quality. Simulation results show that our proposed CDP algorithms outperform re-encode algorithm in terms of speed and quality.
引用
收藏
页码：1049 / 1054
页数：4
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