Title :
Directional Correlation--A Technique to Reduce Bandwidth in PCM Television Transmissions
Author_Institution :
Princeton Univ., NJ, also Addison-Wesley Publishing Co. and Polarad Electronics Corp., N.Y.
fDate :
4/1/1967 12:00:00 AM
Abstract :
Utilizing the new tool of frame storage of PCM encoded television pictures, a new technique for reducing the bandwidth requirements for transmission is described. The method involves the use of the high directional correlation inherent in picture point samples of the same frame, as well as frame to frame correlation. Using the procedures developed in the paper, a block diagram of a transmitter and receiver utilizing such a principle is illustrated and discussed. It is also shown how this technique improves on that of both simple and modified differential PCM encoding for television transmission.
Keywords :
Coding; Correlation detection; Data transmission systems; Digital signals; Facsimile equipment; Facsimile transmission; Processing; Pulse modulation; Television systems; Bandwidth; Data communication; Facsimile; Instruments; Laboratories; Missiles; Phase change materials; Pulse modulation; Redundancy; TV;
Journal_Title :
Communication Technology, IEEE Transactions on
DOI :
10.1109/TCOM.1967.1089578