Method and system for segmenting an image
US9042662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2011 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Dec 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/11
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention pertains to a method for segmenting an image from a sequence of video images into a foreground and a background, the image being composed of pixels, the method includes assigning an initial foreground probability to each of the pixels; assigning a set of probability propagation coefficients to each of the pixels; and applying a global optimizer to the initial foreground probabilities of the pixels to classify each of the pixels as a foreground pixel or a background pixel, to obtain a definitive foreground map; wherein the global optimizer classifies each processed pixel in function of the initial foreground probability of the processed pixel and the initial foreground probability of neighboring pixels, the relative weight of the initial foreground probability of neighboring pixels being determined by the probability propagation coefficients of the neighboring pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.