Automatic processing of aerial images
US7386164B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 23, 2004 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Mar 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10032
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Change detection apparatus for detection of changes between first and second stereoscopic image pairs obtained at different times of a substantially similar view, comprises: a two-dimensional image filter for comparing first and second image pairs to obtain an initial list of change candidates from two-dimensional information in the image pairs, and a three-dimensional image filter for comparing the image pairs at locations of the change candidates using three-dimensional image information. The apparatus retains those change candidates correlating with three-dimensional image change and rejects change candidates not correlating with three-dimensional image change, and produces a refined list of change candidates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.