Image processing device, display device, image processing method, program, and storage medium
US8358307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2008 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Sep 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0142
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Upscaling circuits include a difference circuit which calculates a gradation value of a target pixel with use of differentiation or difference of gradation values in vicinity to the target pixel, so that an edge of an article pictured in an image can be extracted; an averaging circuit which calculates a gradation value of a target pixel by averaging gradation values in vicinity to the target pixel; and a correlation operation circuit which calculates a correlation value indicating a correlation between difference image data and averaged image data, the difference image data being produced by carrying out the difference operation process on the divided image data, and the averaged image data being produced by carrying out the difference operation process and the averaging process on the divided image data. Further, an interpolation process is carried out on the divided image data with an interpolation method using the calculated correlation value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.