Dynamically configurable bilinear filtering system
US8253758B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2012 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Feb 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for a bilinear filter system comprising a pre-formatter module, a bilinear module, an accumulator module, and a format module. The pre-formatter module is configured to receive texel data and convert it to a normalized fixed point format. The bilinear module is dynamically reconfigurable to perform an interpolation or an extended precision interpolation on the normalized fixed point texel data from the pre-formatter module and generate re-normalized floating point texel data. The interpolator analyzes the exponent range of fixed point texel data from the pre-formatter module to determine if an extended precision calculation is appropriate. The accumulator module is configured to accumulate floating point texel data from the bilinear module to achieve the desired level of bilinear, trilinear, and anisotropic filtering. The format module is configured to convert texel data from the accumulator module into a standard floating point representation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.