System and method for factorizing light in a sequence of images
US7756356B2 · kind B2 · utility
3Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2007 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | May 12, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/262
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method factorizing a sequence of images acquired of a scene into lighting components. The scene is illuminated by a moving light source. An appearance profile is constructed for each pixel in the sequence of images. The appearance profile is a vector representing intensities of the pixel at instances in time. The appearance profiles are factorized into a shadow component, a skylight component, and a sunlight component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.