Bio-inspired method of ground object cueing in airborne motion imagery
US9008366B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2013 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Sep 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30241
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described is method for object cueing in motion imagery. Key points and features are extracted from motion imagery, and features between consecutive image frames of the motion imagery are compared to identify similar image frames. A candidate set of matching keypoints is generated by matching keypoints between the similar image frames. A ground plane homography model that fits the candidate set of matching keypoints is determined to generate a set of correct matching keypoints. Each image frame of a set of image frames within a selected time window is registered into a reference frame's coordinate system using the homography transformation. A difference image is obtained between the reference frame and each registered image frame, resulting in multiple difference images. The difference images are then accumulated to calculate a detection image which is used for detection of salient regions. Object cues for surveillance use are produced based on the detected salient regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.