Method and apparatus for enhancing object boundary precision in an image
US7813582B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2006 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Aug 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a system that enhances sharpness of object boundaries in an image. During operation, the system first receives an image. Next, the system computes gradients of color values for pixels in the image. The system then computes displacement vectors for pixels in the image, wherein the magnitude of the displacement vector for a given pixel is proportional to the magnitude of the gradient of the color value at the given pixel. The system next replaces the color values for the pixels, wherein the color value for a given pixel is replaced with a color value obtained from a location at the end of the displacement vector for the given pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.