THE USE OF BLOCK TRUNCATION CODING IN DPCM IMAGE-CODING

被引：11

作者：

DELP, EJ ^{[1
]}

MITCHELL, OR ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT ELECT ENGN,ARLINGTON,TX 76019

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1991年 / 39卷 / 04期

关键词：

D O I：

10.1109/78.80925

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：

In this correspondence we present the results of using block truncation coding (BTC) in predictive differential pulse code modulation (DPCM) coding of images. BTC is based on the use of a moment preserving (MP) quantizer that is designed such that the quantizer preserves statistical moments of the input and output. We show that while it is theoretically impossible to preserve moments in the reconstructed image, as is normally done in BTC, the DPCM/BTC system works quite well at data rates of 1.18 b/pixel. The performance of the DPCM/BTC system is compared to classical mimimum mean-square error quantizers. These methods are also compared in the presence of channel errors.

引用

页码：967 / 971

页数：5

共 13 条

[1] QUANTIZING CHARACTERISTICS FOR SIGNALS HAVING LAPLACIAN AMPLITUDE PROBABILITY DENSITY-FUNCTION [J].