Error resilient pre-/post-filtering for DCT-based block coding systems

被引：0
|
作者：
Tu, CJ [1 ]
Tran, TD [1 ]
Liang, J [1 ]
机构：
[1] Johns Hopkins Univ, Dept Elect & Comp Engn, Baltimore, MD 21218 USA
来源：
2003 INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOL III, PROCEEDINGS | 2003年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Pre-/post-filtering can be attached to a DCT-based block coding system to improve coding efficiency as well as to mitigate blocking artifacts. Previously designed pre-/post-filters are optimized to maximize coding efficiency solely. For image and video communication over unreliable channels, those pre-/post-filters are sensitive to transmission errors. This paper addresses the problem of designing pre-/post-filters which are more error resilient. A family of pre-/post-filters are designed to provide desired trade-offs between coding efficiency and robustness to transmission errors. These filters achieve superior reconstruction performance without sacrificing much coding performance.
引用
收藏
页码：153 / 156
页数：4
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