Adaptive interpolation method and apparatus using correlation detection
US5347599A · kind A · utility
47Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Jun 11, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/125
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An interpolation apparatus for preventing image deterioration caused by correlation detection errors. The apparatus comprises a calculation means for obtaining the arithmetic mean of pixels on the scan lines above and below the line being interpolated, a correlation value detection means for obtaining the correlation value of the pixels, a setting means for outputting the reference value of correlation, a comparison means for outputting a binary signal set, a determination means for determining the interpolation line, and a selection means for selecting and passing the output of the calculation means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.