Digital video compression system

Details Digital video compression system Digital video compression system

H - Electricity

04

N

350/33

H04N 7/12 (2006.01) H04N 7/36 (2006.01) H04N 11/04 (2006.01)

Patent

CA 1265234

ABSTRACT OF THE DISCLOSURE A method and system for compressing television video signals for digital transmission allows full motion pictures to be transmitted. The analog signal is digitized and stored in a memory A in consecutive pixel value locations. The values of the color components of each pixel value are summed and stored in a memory B. In the second frame, the sum of each pixel value is compared with the sums stored in memory B. If the difference is greater than a filter number, then that particular pixel is transmitted by the control computer. The total number transmitted for each frame is compared to a maximum allowable data rate, and the filter number is adjusted accordingly.

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