DocumentCode :
920221
Title :
Simple nonstatistical television compression system
Author :
Beddoes, Michael P. ; Chu, Thien Ke
Volume :
19
Issue :
5
fYear :
1973
fDate :
9/1/1973 12:00:00 AM
Firstpage :
648
Lastpage :
652
Abstract :
A television system is proposed which sends a succession of high-bandwidth and low-bandwidth pictures over a channel. If flicker is avoided, the eye judges picture quality from successive presentations of the pictures by taking an average. It appears that an exchange can be effected between the power in the high-frequency components and the actual duration of these components. Using only successive high-bandwidth and low-bandwidth pictures, a 1.5:1 compression ratio can be achieved, accompanied by a small drop in subjective quality. Using a "high-frequency boost circuit" to get a compression ratio up to 2.75:1 still gives satisfactory picture quality. Experiments using movie pictures in place of the previously mentioned stills show that high compression ratios are possible.
Keywords :
Image coding; Cameras; Convergence; Fourier transforms; Frequency; Image storage; Lenses; Monitoring; Phosphors; TV; Testing;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.1973.1055083
Filename :
1055083
Link To Document :
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