Pixel mapping using a lookup table and linear approximation
US8340462B1 · kind B1 · utility
15Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2011 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | May 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A forward interpolation approach is disclosed for enabling a second version of an image to be constructed from a first version of the image. According to one implementation, pixels from the first version of the image are mapped to pixels in the second version of the image, and pixel values are determined for the corresponding pixels in the second version of the image. In one implementation, the pixel mapping is performed using a lookup table and linear approximation. Performing the pixel mapping in this manner enables computations to be simplified and cost and gate count to be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.