Detecting silhouette edges in images
US7206449B2 · kind B2 · utility
180Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2003 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jun 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method detects silhouette edges in images. An ambient image is acquired of a scene with ambient light. A set of illuminated images is also acquired of the scene. Each illuminated image is acquired with a different light source illuminating the scene. The ambient image is combined with the set of illuminated to detect cast shadows, and silhouette edge pixels are located from the cast shadows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.