Operationally optimal vertex-based shape coding

被引：36
|
作者：
Schuster, GM [1 ]
Melnikov, G
Katsaggelos, AK
机构：
[1] 3COM, Adv Technol Res Ctr, Tech Staff, Mt Prospect, IL 60056 USA
[2] Northwestern Univ, Dept Elect & Comp Engn, Ameritech Ctr Informat Technol, Evanston, IL USA
来源：
IEEE SIGNAL PROCESSING MAGAZINE | 1998年 / 15卷 / 06期
关键词：
D O I：
10.1109/79.733498
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：
A framework for the rate-distortion operationally optimal encoding of shape information in the intra mode is presented. It is shown that each curve approximation has a natural order. If the control-point encoding scheme is matched to this order and the distortion is carefully defined, then the optimal approximation can be found using a directed acyclic graph (DAG)-shortest-path algorithm. The minimum-maximum distortion optimization problem and the minimum total (average) distortion optimization problem can be both solved by similar means, using an appropriate definition of the DAG weight function.
引用
收藏
页码：91 / 108
页数：18
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