DocumentCode
1365763
Title
Adaptive DPCM with median type predictors
Author
Jarske, Tiina ; Neuvo, Yrjö
Author_Institution
Tampere Univ. of Technol., Finland
Volume
37
Issue
3
fYear
1991
fDate
8/1/1991 12:00:00 AM
Firstpage
348
Lastpage
352
Abstract
An improved DPCM (differential pulse code modulation) coding method for television applications is introduced. The method utilizes adaptive quantization and nonlinear, median type predictors. Consequently, it is called median adaptive DPCM (MADPCM). Simulation results indicate that good picture quality can be achieved with a compression ratio of 2.7:1 (3 bits/pixel). Using a three-dimensional spatiotemporal median-type predictor, even the compression ratio 4:1 (2 bits/pixel) gives good results
Keywords
data compression; encoding; filtering and prediction theory; pulse-code modulation; video signals; ADPCM; DPCM; MADPCM; adaptive quantization; compression ratio; differential pulse code modulation; encoding; median adaptive DPCM; picture quality; spatiotemporal median-type predictor; television applications; Data compression; Digital TV; Discrete cosine transforms; HDTV; Image coding; Image reconstruction; Modulation coding; Pulse modulation; Quantization; Sampling methods;
fLanguage
English
Journal_Title
Consumer Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0098-3063
Type
jour
DOI
10.1109/30.85598
Filename
85598
Link To Document