Method and apparatus for video signal interpolation and progressive scan conversion
US5329314A · kind A · utility
12Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Apr 9, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video input signal is vertically interpolated and applied along with a field delayed and a field advanced video signal to respective inputs of a first median filter the output of which is applied along with a line delayed and a line advanced signal to respective inputs of a second median filter to provide an interpolated video output signal. The resultant double median filtered signal and a field delayed signal are applied via respective time compressors to a multiplex switch to provide an output signal of progressive scan form and in which every other line thereof is interpolated by double median filtering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.