Apparatus and method for single-pass, gradient-based motion compensated image rate conversion
US8396129B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2007 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mipmap generator generates pairs of mipmaps that are each of a lower resolution that its respective source image. A single-pass, gradient-based motion vector generator generates an image motion vector map having values that represent the motion trajectories for pixels in the first and second source images. An image interpolator generates an interpolated image based on the source images and the image motion vector map. A motion detector generates a motion factor map based on a pair of mipmaps from those generated by the mipmap generator that represents a detected degree of motion between the first and second source images. The blending module generates a blended, upconverted new image using the motion factor map, the interpolated image and one of the first and second motion maps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.