Image processing apparatus and method for interpolating missing pixels
US6744916B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1999 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Nov 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2209/046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The image processing apparatus, which obtains pixels having missing image signals through interpolation which pixels are arranged between the pixels in a horizontal direction and a vertical direction having the image signals, comprises a brightness-signal interpolating section which generates interpolation signals of a pixel to be interpolated according to each degree of changes in image signals of four adjacent pixels located at positions surrounding said pixel to be interpolated as well as to each degree of changes in image signals of the pixel to be interpolated. Therefore, an image having high resolution and smooth outline can be reproduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.