Method for detecting 3D geometric boundaries in images of scenes subject to varying lighting
US9418434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2013 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Three-dimensional (3D) geometric boundaries are detected in images of a scene that undergoes varying lighting conditions caused by light sources in different positions, from a set of input images of the scene illuminated by at least two different lighting conditions. The images are aligned, e.g., acquired by a stationary camera, so that pixels at the same location in all of the input images correspond to the same point in the scene. For each location, a patch of corresponding pixels centered at the location is extracted from each input image. For each location, a confidence value that there is a 3D geometric boundary at the location is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.