Investigation of Image Coding Techniques for Television Transmission.

摘要

The Image Processing Institute of the University of Southern California initiated a research project on March 1, 1973 under contract N00123-73-C-1507 from the Naval Undersea Center to study various schemes of intraframe coding of video signals. The object of the project was to develop an efficient technique of transmitting video signals from remotely piloted vehicles (RPV) to ground stations, compatible with rather severe power and volume restrictions on the transmitter. The primary techniques that have been explored for intraframe coding are transform, linear predictive and hybrid transform/linear predictive techniques. The hybrid coding system which combines the attractive features of both transform and predictive coding systems has been studied in detail. The specific transform used is the discrete transform. The hybrid cosine/DPCM system may be implemented to operate in real time through the use of charge coupled devices and conventional DPCM techniques.