Method and apparatus for interpolating a video signal of a picture element which has not been sampled and transmitted by an interleave sampling operation
US5257326A · kind A · utility
10Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Apr 22, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0152
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal for a first scanning line including a picture element whose signal does not exist and a signal for a second scanning line adjacent to the first scanning line in the same field are obtained in the same period. Then, a coefficient representing the ratio of the level of the signal for the first scanning line to the level of the signal for the second scanning line is calculated. Multiplying by the coefficient the level of the signal for the second scanning line to thereby provide an interpolation signal. The interpolation signal is added to the signal for the first canning line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.