System and method of image upsampling
US8571309B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2011 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/4053
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes receiving an image having a first resolution and generating an upsampled image having a second resolution based on the image. A multi-dimensional data structure corresponding to a multi-dimensional image space is generated from the upsampled image. Each node of the data structure is determined based on a weighted sum of values of one or more pixels in the upsampled image. Each of the one or more pixels corresponds to a pixel in the received image and is located within a region of the image space having a vertex defined by the node. A filter modifies the values of the nodes and a second upsampled image is generated based on the modified values. Each pixel of the second upsampled image not corresponding to a pixel in the received image is determined based on a weighted sum of the modified values of one or more nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.