High efficiency technique for coding a digital video signal

Details High efficiency technique for coding a digital video signal High efficiency technique for coding a digital video signal

H - Electricity

04

N

350/33

H04N 7/12 (2006.01) H04N 7/26 (2006.01)

Patent

CA 1251555

ABSTRACT OF THE DISCLOSURE An an apparatus for coding digital video data in the form of a blocks thereof, dynamic range information is generated from maximum and minimum values of the digital video data representing plural picture elements in each block, the minimum value is subtracted from each of the digital data to generate modified digital video data, the modified digital video data is encoded with a fixed digitized bit number less than that of the original digital video data, and the encoded data and an additional code for each block are transmitted, with such additional code being formed of at least two of the maximum and minimum values for the respective block and a signal corresponding to the dynamic range information for each block.

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