Patent ID: 9659376
Date: 2017-05-23
CPC Classifications: G06K,G06T

Claim:
1. A filtering device, comprising: an evaluation value deriving module that derives, per a pair of comparison targets having mutual relevance, multiple evaluation values indicative of correlations between any one of reference extracted parts extracted from one of the comparison targets and multiple comparison extracted parts extracted from the other comparison target; a positional relationship information deriving module that, for each of the reference extracted parts, derives an order of the respective correlations of the multiple comparison extracted parts and respective positional relationships of at least some of the multiple comparison extracted parts in the ordered correlations to the reference extracted part, wherein, for each of the reference extracted parts, a first candidate for determining a correct correlation for the reference extracted part is identified based on a comparison extracted part with a highest correlation to the reference extracted part in the ordered correlations for that reference extracted part; and a positional relationship replacing module that, for at least one reference extracted part, replaces the identified first candidate with a different first candidate, based on one of the comparison extracted parts that does not have the highest correlation to that reference extracted part, so that the difference between the positional relationship of that one reference extracted part to the different first candidate and the positional relationship of another reference extracted part to the identified first candidate is less than a predetermined amount.