Apparatus and method for resolution transformation of orthogonal transformation image
US6683997B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2000 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Jun 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/4084
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A resolution transformation apparatus which has longitudinal and lateral change ratio input means 101 for inputting the longitudinal and lateral change ratios of an image, low-frequency orthogonal transformation block extraction means 103 for extracting only low-frequency areas of N orthogonal transformation blocks required for resolution transformation from before-transformation orthogonal transformation image memory 102 for storing orthogonal transformation images before undergoing resolution transformation, resolution transformation means 104 for executing resolution transformation and generating M orthogonal transformation blocks from the N low-frequency orthogonal transformation blocks, and orthogonal transformation block storage means 105 for storing the Morthogonal transformation blocks after resolution transformation in after-transformation orthogonal transformation image memory 106.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.