Filtering device and environment recognition system
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United States of America Patent
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Dec 20, 2016
Grant Date -
Apr 2, 2015
app pub date -
Sep 4, 2014
filing date -
Sep 30, 2013
priority date (Note) -
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Abstract
A filtering device includes an evaluation value deriving module that derives, for a pair of images having mutual relevance, multiple evaluation values indicative of correlations between any one of blocks (reference block) that is extracted from one of the images (reference image) and multiple blocks (comparison blocks) extracted from the other image (comparison image), an evaluation range setting module that sets an evaluation range of the evaluation values, the evaluation range having one of boundaries at the evaluation value with the highest correlation among the multiple evaluation values, and a difference value determining module that determines whether the evaluation value with the highest correlation is valid as a difference value based on the multiple evaluation values and the evaluation range.
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