Method for motion compensated interpolation using overlapped block motion estimation and frame-rate converter using the method
US7684486B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2005 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Jan 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/014
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for motion compensated interpolation using overlapped block motion estimation and a frame-rate converter using the method, wherein the method includes storing an input image in frame units, dividing the stored image into N1×N2 blocks and M1×M2 blocks that are larger than the N1×N2 blocks based on the same center axis as that of the N1×N2 blocks and overlapped with adjacent blocks and sampling pixels in the M1×M2 blocks, estimating a motion vector by matching the sampled M1×M2 blocks between adjacent frames, and creating a median pixel value between the adjacent frames using the estimated motion vector and pixel values of the matched N1×N2 blocks between the adjacent frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.