Method and apparatus for periodic structure handling for motion compensation
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United States of America Patent
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Dec 8, 2015
Grant Date -
Feb 14, 2013
app pub date -
Oct 12, 2012
filing date -
Jul 9, 2008
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Abstract
A motion compensated picture rate converter for determining a dominant motion vector for a block appearing in two images includes a high-pass filter and a low-pass filter, transform calculators responsive to the filters for performing transforms on at least two images to produce a frequency-domain representation of the images, estimating calculators for estimating a plurality of motion vectors based on the frequency-domain representations, and a periodic structure detection and elimination module responsive to the transform calculators and the estimating calculators for identifying a period based on the frequency-domain representation of the images and for selecting a dominant motion vector based on the estimated motion vectors and the identified period. A method of operation is also disclosed.
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