Apparatus and method for parallel polyphase image interpolation
US10332239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides apparatus and method for parallel polyphase image interpolation. The apparatus comprises: a local memory, a first memory access control unit, a second memory access control unit, a source image data buffering unit, a filter coefficient buffering unit, a multiply-accumulator, a third memory access control unit and a state machine; the first memory access control unit is configured for obtaining source image data from the local memory and buffering them into a source image data buffering unit; the second memory access control unit is configured for obtaining filter coefficients from the local memory and buffering them into a filter coefficient buffering unit; the source image data buffering unit is configured for inputting source image data to each multiply-accumulator, the filter coefficient buffering unit is configured for broadcasting filter coefficients corresponding to the source image data to the multiply-accumulators; and the multiply-accumulator is configured for performing multiply-accumulation operation on the source image data and the filter coefficients, and outputting the multiply-accumulation result every F clocks. The interpolation appara…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.