Dual interleaved block motion compensation
US5774677A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/137
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Input image data is stored in an interleaved format, in which data from two or more blocks are stored in an alternating fashion. Motion compensation is performed on the interleaved data by applying motion vectors to the appropriate data to generate different blocks of motion-compensated image data in the interleaved format. In one embodiment, the input image data are reference data and the motion compensation generates motion-compensated prediction data used during video compression processing. The present invention enables other steps in such video compression processing (e.g., inverse block transform and motion-compensated addition) to be implemented efficiently in pseudo-SIMD fashion without having to convert image data back and forth between the interleaved format and conventional block order format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.