Method of restoring a picture cell by estimation with high density
US4356555A · kind A · utility
21Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Aug 6, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40068
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A picture is divided into equal square picture cells, and the picture cells are sampled in such a manner that the sampled picture cells form a checkered pattern. The density of the non-sampled picture cell is outputted as four data by using the four sampled picture cells surrounding the four sides of the non-sampled picture cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.