Apparatus for extracting changed part of image, apparatus for displaying changed part of image, and computer readable medium
US9158968B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 2011 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/422
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for extracting a changed part of an image includes a separate graphic-element acquisition unit configured to acquire separate graphic-elements included in each of a first image and a second image and an integrative graphic-element acquisition unit configured to associate the separate graphic-elements with one another based on geometric relation thereamong, and to acquire integrative graphic-elements each including the separate graphic-elements associated with one another. The apparatus further includes a correspondence relation acquisition unit configured to acquire correspondence relation between the integrative graphic-element included in the first image and the integrative graphic-element included in the second image and a changed part extraction unit configured to extract a changed part between the first image and the second image based on the correspondence relation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.