Semi-fixed-length motion vector coding for H.263-based low bit rate video compression

被引：3

作者：

Côté, G ^{[1
]}

Gallant, M ^{[1
]}

Kossentini, F ^{[1
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

来源：

IEEE TRANSACTIONS ON IMAGE PROCESSING | 1999年 / 8卷 / 10期

关键词：

error resilience; H.263; video coding; video compression;

D O I：

10.1109/83.791971

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

We present a semi-fixed-length motion vector coding method for H.263-based low bit rate video compression. The method exploits structural constraints within the motion field. The motion vectors are encoded using semi-fixed-length codes, yielding essentially the same levels of rate-distortion performance and subjective quality achieved by H.263's Huffman-based variable length codes in a noiseless environment. However, such codes provide substantially higher error resilience in a noisy environment.

引用

页码：1451 / 1455

页数：5