Method and apparatus for reconstructing image
US8115864B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2007 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Dec 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to the field of video data de-interlacing, and in particular to a method for reconstructing full-resolution frames from a line-skipped-sequence of fields and a corresponding apparatus. It is the particular approach of the present invention to substitute missing lines of a block of a reconstructed full-resolution frame by lines from another field, e.g. the preceding field, and translating the substitute lines vertically and horizontally so as to optimized a smoothness measure computed for the thus reconstructed block. In this manner, an error-prone a priori determination of motion vectors based an interpolation of the interlaced images in the vertical direction can be avoided. The present invention may also be applied to sequences generated from a full-resolution sequence by a line-skipping operation that keeps only every Kth line and discards the other K−1 lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.