Motion vector estimation system

Details Motion vector estimation system Motion vector estimation system

1998-03-04

2000-06-20

Le, Vu

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348699, 348416, H04N 712

Patent

active

060786183

ABSTRACT:
A reference picture storing section 101 stores reference picture data referred in a motion vector estimation. A current picture storing section 102 stores a current picture data for the motion vector estimation. A motion vector estimating section 103 takes matching between the current picture data and the reference picture data to estimate a motion vector having the minimum difference. A motion vector statistics processing section 104 calculates an average value and a histogram from each picture of an estimated motion vector. A shift vector setting section 105 calculates a shift vector of a motion vector search window based on the average value and histogram in each of coded pictures. A search window designating section 106 designates a motion vector to be searched according to the calculated shift vector so as to cause the motion vector estimating section 103 to estimate the motion vector.

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