Maneuverless passive range estimation using monocular image sequences
US9342746B1 · kind B1 · utility
3Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2012 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jul 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/07
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method to estimate range to a moving rigid body from a moving platform using a monocular camera. The method does not require the camera platform to maneuver in order to estimate range. The method relies on identification and tracking of certain principal features of the object. The method extracts a silhouette of an object from an obtained image and identifies two principal linear components of the silhouette. A normalized distance between the point of intersection of the two linear components and a centroid of the silhouette is computed, compared to a data set and used to determine a direction of movement of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.