Motion vector detection apparatus, motion vector detection method, and computer-readable storage medium
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United States of America Patent
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Jan 6, 2015
Grant Date -
Feb 2, 2012
app pub date -
Jul 21, 2011
filing date -
Jul 30, 2010
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Abstract
A motion vector detection apparatus comprising, a memory for storing a reference image for motion prediction encoding, a unit for detecting a first motion vector by comparing the reference image with an encoding target block of a plurality of blocks obtained by dividing a field image, a converter for converting the field image into a frame image by performing interlace/progressive conversion, a unit for generating a reduced image by reducing the frame image, a frame memory for storing the reduced image, and a unit for detecting a second motion vector based on a reference reduced image and a reduced image of the encoding target block of reduced images stored in the frame memory, wherein the second motion vector detected with respect to the reduced image of the encoding target block is used to determine a search area for detecting the first motion vector.
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