Video scan converter including the modification of spatially interpolated pixels as a function of temporal detail and motion
US5488422A · kind A · utility
19Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Jun 17, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video scan converter includes an input for receiving a video signal at a first scan rate, an output for providing a video signal at a second scan rate and a main path leading between the input and the output. The main path includes a scan line interpolation circuit and a time scale modification circuit which provide conventional two-dimensional scan conversion. A further path coupled to the main path dynamically alters the output of the scan line interpolation circuit in response to motion in the picture represented by the video signal, thus providing a three-dimensional scan conversion. The further path may be optional.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.