Macroblock-based segmentation and background mosaicking method
US6463174B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is disclosed a macroblock-based segmentation and background mosaicking method for object-based coding of image sequence having a stationary background. An image comprising a background having rare change and an object having slow change taken from a position and focus fixed camera is segmented into changing regions and stationary regions in units of macroblock of 16×16 pixels that is most widely used as a basic coding unit in a video coding method or apparatus. A background mosaic is constructed with only macroblocks corresponding to the regions having rare temporal change. The background mosaic is newly constructed with respect to an entire image whenever there are any changes in the image sequence, thereby maximizing coding efficiency. Therefore, the present inventions realizes a very low complexity, thus facilitating real time operation and maximizing efficiency in is object shape coding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.