Image rotation with substantially no aliasing error
US7411593B2 · kind B2 · utility
4Cited by
35References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Feb 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system, method and program product for rotating a first image in an image buffer such that the resulting, rotated image is substantially free of an aliasing error, i.e., broken lines, stair stepped edges, etc., is disclosed. An algorithm is applied to the first image that uses weighted sums of data points of the first image to create the rotated image. The weighting is based on the skew angle and data point location of the first image. The resulting rotated image also has a reduced data storage space requirement compared to rotated images created by prior art techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.