Video coding apparatus, video coding method, and non-transitory computer readable medium
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United States of America Patent
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Nov 20, 2018
Grant Date -
Oct 6, 2016
app pub date -
May 26, 2014
filing date -
Dec 4, 2013
priority date (Note) -
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Abstract
A motion estimator that divides an image into a plurality of blocks and estimates motion information including a motion vector of each block includes: independent processing units, a dependent processing unit, and a motion vector buffer. The independent processing units can operate in parallel, search for a motion vector of each block using a reference image and a current image without using motion information on neighboring blocks, and record the motion vector in the motion vector buffer. The dependent processing unit determines whether or not to change motion information on a processing target block by referring to motion information on neighboring blocks held in the motion vector buffer, and when it is determined that it is necessary to change the motion information, the dependent processing unit performs processing for recording the changed motion information in the motion information buffer and outputting the changed motion information to outside.
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