Temporal and spatial video block reordering in a decoder to improve cache hits
US9877033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Aug 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This disclosure describes techniques in which the decoding order of video blocks is modified relative to the display order of video blocks. The decoding order may be modified temporally such that video blocks of different video frames (or other coded units) are decoded in an alternating manner. In this case, the decoding order of video blocks may alternate between video blocks of two or more different frames. Furthermore, the decoding order may also be modified spatially within a given video block such that the video blocks are decoded in an order that does not correspond to the raster scan order of the video blocks. The techniques may improve the use of memory by improving the likelihood of cache hits, thereby reducing the number of memory loads from an external memory to an internal cache associated with the decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.