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Applications of a DPCM system with median predictors for image coding

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4 Author(s)
Dong Hee Kang ; Dept. of Electr Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea ; Jin Ho Choi ; Yong Hoon Lee ; Choon Lee

A differential pulse code modulation (DPCM) system employing a median predictor, which is called the predictive-median-DPCM (PM-DPCM), is proposed. It is shown that the PM-DPCM is resistant to transmission errors. Specifically, it is observed that transmission errors are often isolated and not propagated in the PM-DPCM images. The characteristics of PM-DPCM are analyzed, and its performance is compared with those of other DPCM systems through experiments. 1-D and 2-D PM-DPCM systems are defined and their properties are examined. Some statistical properties of PM-DPCM are derived

Published in:

IEEE Transactions on Consumer Electronics  (Volume:38 ,  Issue: 3 )