DocumentCode
916844
Title
Ordered dither patterns for coarse quantization of pictures
Author
Lippel, B.
Volume
59
Issue
3
fYear
1971
fDate
3/1/1971 12:00:00 AM
Firstpage
429
Lastpage
431
Abstract
It is well known that a coarse quantizer can be used for pulse-code modulation (PCM) picture transmission when random dither is added to the video, and that synchronous dither subtraction at the receiver significantly improves picture quality. Two-dimensional ordered dither patterns are reported and illustrated which provide better picture quality than equivalent random dither and which do not require synchronous subtraction.
Keywords
Chromium; Delay; Delta modulation; Encoding; Logic; Phase change materials; Pulse modulation; Quantization; Sampling methods; Speech;
fLanguage
English
Journal_Title
Proceedings of the IEEE
Publisher
ieee
ISSN
0018-9219
Type
jour
DOI
10.1109/PROC.1971.8197
Filename
1450127
Link To Document