Apparatus and method for shift invariant differential (SID) image data interpolation in non-fully populated shift invariant matrix
US8213710B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2007 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Oct 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/4015
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing system interpolates image data of an image array by ascertaining shift invariant points and non-shift invariant points within the array. The average illumination and the second order derivative are determined for the shift invariant locations. The second order derivative and the intensity at the non-shift invariant locations for each of the non-shift invariant points are estimated. The color data for each color element is determined from the image data and second order derivative. The second order derivative is multiplied by a scaling factor for selectively smoothing and sharpening the second order derivative. The color data values of adjacent color element to enhance a resolution of the image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.