Pixel replacement using five nearest neighbors
US8237825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2008 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Feb 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/683
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing system is provided for replacing a value of a defective pixel located along a center row of a region in an image. The region includes a center row, a previous row located above the center row and a subsequent row located below the center row. The image processing system includes a buffer for storing values of pixels located in the previous row and the center row. The image processing system also includes a selector for selecting a plurality of pixel values located in the previous row and the center row that are adjacent to the location of the defective pixel, without selecting a pixel value on the subsequent row. The image processing system further includes a calculator for determining a replacement value for the defective pixel from values of the selected pixels located in the previous row and the center row.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.