Parallel box filtering through reuse of existing circular filter
US6927775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Jun 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sample filtering system and method for concurrently filtering sample data for two or more sequential pixels (in a scan-line) are disclosed. The system may include a sample cache, a control register, a read cache controller, and a sample-to-pixel calculation unit. The read cache controller reads a first set of S samples from the sample cache, and outputs a second set of S samples to the sample-to-pixel calculation unit. The second set of samples may have one or more subsets of samples, with each subset of samples selected to cover the filter region for one of the sequential pixels. The sample-to-pixel calculation unit may process each subset separately and concurrently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.