Decimated sliding windows for multi-reference prediction in video coding
US9014266B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2012 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Oct 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Decimated sliding windows for multi-reference prediction are disclosed. Reference frames for coding using motion prediction are stored in two or more buffers, which can be arranged as first-in-first-out stacks. As new reference frames are added to a first buffer, the least recently used reference frame is either moved to a second buffer or discarded depending upon a decimation factor. More than two buffers can be used, and each of the buffers can have the same or a different decimation factor. This permits both short duration and long duration availability of reference frames while minimizing memory usage and overhead in the encoded video bitstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.