Title :
Entropy of quantised television signals
Author_Institution :
Australian Post Office, Postmaster-General´´s Department, Research Laboratories, Melbourne, Australia
fDate :
1/1/1968 12:00:00 AM
Abstract :
Real-time television signals were recorded on magnetic tape in digital form using an online, time-shared computer. A sampling technique was used to reduce the rate of incoming data, and the data were subsequently analysed to obtain the first- to fourth-order entropies. By inspecting the entropies it is seen that for low-detail pictures most redundancy is associated with the second-order probability density function, while for average- and high-detail pictures the redundancy is associated with higher-order statistics.
Keywords :
information theory; pulse modulation; television transmitters;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1968.0003