H - Electricity – 04 – N
Patent
H - Electricity
04
N
354/68
H04N 7/36 (2006.01) H04N 7/26 (2006.01)
Patent
CA 1291823
ABSTRACT OF THE DISCLOSURE The invention relates to a high efficiency apparatus for coding digital video data in which the number of bits per picture element in the video data such as a digital video signal or the like is compressed! The video data of a television picture plane is divided into a number of three-dimensional blocks, i.e., spatial blocks. The picture element data in the block can be coded by the reduced number of bits by the bit compression by performing the coding process adapted to the narrowed dynamic range on the basis of the correlation among the picture elements in each block. The transmission data of the number of bits reduced as compared with the number of bits of the original data can be formed. By coding only the necessary frame by discriminating the movement of the image in the block, the redundancy in the direction of time can be removed.
521802
Gowling Lafleur Henderson Llp
Sony Corporation
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