APPLICATIONS OF A DPCM SYSTEM WITH MEDIAN PREDICTORS FOR IMAGE-CODING

被引:0
|
作者
KANG, DH [1 ]
CHOI, JH [1 ]
LEE, YH [1 ]
LEE, C [1 ]
机构
[1] GOLDSTAR,CONSUMER ELECTR RES LAB,SEOUL 137140,SOUTH KOREA
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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 DPCM system employing a median predictor, which is called the predictive median-DPCM(PM-DPCM), is proposed. An interesting property that in PM-DPCM transmission noise if often isolated and not propagated over the reconstructed signals is observed and is analyzed deterministically and statistically. In order to examine the performance characteristics of the PM-DPCM, it is applied to real image signals. The experimental results indicate that the PM-DPCM outperforms the standard DPCM when transmission errors occur, and that the former performs like the latter under noise-free conditions.
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页码:429 / 435
页数:7
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