Method and apparatus for motion compensation reference data caching
US9363524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2013 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jun 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/433
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for processing a current macro-block of a current frame for motion compensation based on reference data from a reference frame using a sliding window cache to cache the reference data are disclosed. The method steps comprise processing a current sub-block of the current macro-block for motion compensation, determining the reference data for the current sub-block based on a reference sub-block in the reference frame, determining whether the reference data is within a sliding window, if the reference data is within the sliding window, checking for a valid tag corresponding to the reference data, responsive to the valid tag, retrieving the reference data from within the sliding window cache and processing the reference data for motion compensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.