ADAPTIVE TRANSFORM CODING BASED ON CHAIN CODING CONCEPTS

被引：5
|
作者：
SAGHRI, JA
TESCHER, AG
机构：
[1] Aerospace Corp, Los Angeles, CA, USA, Aerospace Corp, Los Angeles, CA, USA
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 1986年 / 34卷 / 02期
关键词：
INFORMATION THEORY - Data Compression;
D O I：
10.1109/TCOM.1986.1096500
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Chain coding technique, originally developed for digital representation and processing of line drawing data, has been implemented in a transform image coding algorithm with significant performance improvement. The algorithm is based on the observation that the boundary of the regions of zero coefficients within a transform block can be efficiently represented by sequences of fixed line segments (chains). Preliminary results indicate significant improvements over the basic coder algorithm in which the consecutive zeros in the transform block were runlength coded. The additional implementation complexity is modest.
引用
收藏
页码：112 / 117
页数：6
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