Method and system for dual spatial or temporal scaling
US6735349B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1999 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Sep 15, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/4007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for scaling an image in accordance with the present invention is disclosed. The method utilizes a plurality of interpolators operating in parallel. Each interpolator operates with a different spatial offset with respect to the other. The final output is the average the output of each interpolator. Normally the initial value of the horizontal and vertical DDA's is zero. Offset is introduced by introducing an initial value in the DDA. Offset has the physical effect of manipulating the weights required for the averaging process in interpolation. Horizontal offset is the initial value in the Horizontal DDA while the vertical offset is the initial value in the Vertical DDA. The present invention relates to implementation in a semiconductor integrated circuit but the concepts can be used in software based image resizing (scaling) algorithms too.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.