Patent ID: 9158968
Filing Date: 2015-10-13
Classification: G06K

Abstract:
1. An apparatus for extracting a changed part of an image, comprising: a separate graphic-element acquisition unit configured to acquire first separate graphic-elements included in a first image and second separate graphic-elements included in a second image; an integrative graphic-element acquisition unit configured to acquire a first integrative graphic-element including the first separate graphic-elements by associating the first separate graphic-elements with one another based on a geometric relation between the first separate graphic-elements, and to acquire a second integrative graphic-element including the second separate graphic-elements by associating the second separate graphic-elements with one another based on a geometric relation between the second graphic-elements; a correspondence relation acquisition unit configured to acquire a correspondence relation between the first integrative graphic-element and the second integrative graphic-element; and a changed part extraction unit configured to eliminate, in response to a deviation in relative position between the first integrative graphic-element and the second integrative graphic-element, the deviation in relative position, and to extract, based on the correspondence relation and in response to determining that a change other than a positional difference exists between the first integrative graphic-element and the second integrative graphic element, a part corresponding to the change.