Motion compensated digital video signal processing
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United States of America Patent
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Feb 20, 2001
Grant Date -
N/A
app pub date -
Dec 4, 1998
filing date -
Dec 4, 1998
priority date (Note) -
Expired
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Abstract
A method determines true motion vectors associated with a sequence of images. The images include fields made up of blocks of pixels. The method selects candidate feature blocks from the blocks of pixels. The candidate feature blocks have intensity variances above a threshold indicative of texture features. Candidate feature blocks in similarly numbered adjacent field intervals are compared to determine sets of displaced frame differences parameters for each candidate feature block. The true motion vectors for each candidate feature block are determined from a minimum weighted score derived from the difference parameters.
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