System and method for scaling images
US8351730B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2007 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Aug 19, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/403
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for scaling images are provided. An upscaling algorithm or function is employed that increases the size of an image and then filters the upscaled image to remove aliasing artifacts. The system and method provides for acquiring an image of a first size, detecting the geometry of the image, scaling the image to a second size, and filtering the scaled image with at least one filter based on the detected geometry. During the filtering process, the edges of objects in the upscaled image are detected and different filter frequency responses are provided for the detected edges. Providing different filter frequency responses for the detected edges preserves more details for line images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.