DocumentCode
914467
Title
Predictors for intraframe encoding of Pal picture signals
Author
Gharavi, H. ; Steele, R.
Author_Institution
Loughborough University of Technology, Loughborough, UK
Volume
127
Issue
3
fYear
1980
fDate
6/1/1980 12:00:00 AM
Firstpage
205
Lastpage
211
Abstract
A predictor based on three previous `pels¿¿ along a scan line is examined for d.p.c.m. encoding of composite Pal signals. The predictor coefficients are described in terms of the ratio of sampling frequency fs to colour subcarrier fsc. Predictions based on p.e.l.s on the second previous and previous lines are derived for the case of fs/fsc = 2.5. Simple 2-dimensional predictors are then formed and used in the d.p.c.m. encoding of a Pal colour-bar signal.
Keywords
filtering and prediction theory; pulse-code modulation; television broadcasting; video signals; DPCM encoding; PAL picture signals; colour subcarrier; intraframe encoding; picture element; predictor; sampling frequency;
fLanguage
English
Journal_Title
Communications, Radar and Signal Processing, IEE Proceedings F
Publisher
iet
ISSN
0143-7070
Type
jour
DOI
10.1049/ip-f-1.1980.0031
Filename
4644610
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