Method of restoring a picture cell by estimation with high density
US4360883A · kind A · utility
26Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1980 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Aug 6, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/72
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Out of nine equal square picture cells forming a picture, only four picture cells surrounding the central picture cell which is to be restored by estimation are utilized. The central picture cell is divided into four equal square sub-cells. The densities of the sub-cells are determined from the mutual relations between the central picture cell and the four surrounding picture cells to determine the density of the central picture cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.