Post-processing of interpolated images
US7136107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2003 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Mar 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image conversion unit (100) for converting an input image into an output image includes a first computing device (104) for computing a first weighted sum of a first group of pixel values, the first group of pixel values corresponding to pixels of the input image; a second computing device (102) for computing a second weighted sum of a second group of interpolated values, the second group of interpolated values being computed by interpolation for spatial locations which are not present at the sampling grid of the input image; a combining device (106) for computing a third sum by combining the first weighted sum and the second weighted sum; and a clipping device (108) for clipping the third sum between a minimum value and a maximum value, the minimum value and the maximum value being derived from pixel values of the input image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.