Method for separating background sprite and foreground object and method for extracting segmentation mask and the apparatus
US6977664B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2000 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | May 1, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/254
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for extracting a foreground object and a background sprite, wherein a provisional sprite is generated, the foreground and the background is separated on the basis of the provisional sprite, and the background sprite is generated. Another method is provided for extracting a segmentation mask by using a difference image, including a first step of regarding each of first macro-blocks as the foreground when an value of the first macro-block is larger than a first predetermined value and a second step of regarding each of second macro-blocks as the foreground when an value of the second macro-block is larger than a second predetermined value, the second macro-block being close to a macro-block which is determined as the foreground in the first step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.