Reduced bit number motion vector detection

Details Reduced bit number motion vector detection Reduced bit number motion vector detection

H - Electricity

04

N

H04N 7/32 (2006.01) G06T 9/00 (2006.01) H04N 5/14 (2006.01) H04N 7/26 (2006.01)

Patent

CA 2140568

In image compression using motion compensated predictive coding, the number of bits of pixel data is reduced before the pixel data are supplied to a motion vector detecting apparatus. Motion vectors are detected using a pipelined operation in which pixel by pixel differences between a reference block and a search block are obtained and summed. At each stage of the pipeline, the sum of differences is limited to a predetermined maximum number of bits.

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