DocumentCode :
937886
Title :
The measurement of third order probability distributions of television signals
Author :
Schreiber, W.F.
Volume :
2
Issue :
3
fYear :
1956
fDate :
9/1/1956 12:00:00 AM
Firstpage :
94
Lastpage :
105
Abstract :
A device has been built for the rapid, automatic measurement of the third order probability density of video signals. Special cathode ray tubes are used to perform a 64-level amplitude analysis on each signal. A triple coincidence is formed among the three analyzer outputs, the number of occurrences in a frame interval being stored in an 8 Mc counter. These numbers are recorded on magnetic tape which then becomes the input to an electronic computer. The computer calculates the conditional entropy, i.e., the information generated by one of the signals when the other two are known. Examples are presented of second and third order distributions, and of entropies calculated for a variety of scenes.
Keywords :
Probability functions; TV signals; Cathode ray tubes; Counting circuits; Density measurement; Entropy; Magnetic analysis; Performance analysis; Probability distribution; Signal analysis; Signal generators; TV;
fLanguage :
English
Journal_Title :
Information Theory, IRE Transactions on
Publisher :
ieee
ISSN :
0096-1000
Type :
jour
DOI :
10.1109/TIT.1956.1056811
Filename :
1056811
Link To Document :
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