Subpixel-based image down-sampling
US8712153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Apr 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/4023
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and apparatus for sampling images using minimum mean square error subpixel-based down-sampling (MMSE-SD) are presented herein. A partition component can receive a first array of pixels, and divide the first array of pixels into two-dimensional (2-D) blocks of pixels. Further, a sampling component can diagonally down-sample subpixels of a block of the 2-D blocks, and generate a second array of pixels based on the down-sampled subpixels. The sampling component can alternately sample subpixels of adjacent pixels of the block in a diagonal direction, and generate the second array of pixels based on the subpixels. A reconstruction component can create a virtual image based on, at least in part, the second array of pixels. A MMSE-SD component can determine an optimal low resolution image based on, at least in part, respective color components of the virtual image and a high resolution image associated with the first array of pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.