Encoder optimization of adaptive loop filters in HEVC
US8792745B2 · kind B2 · utility
0Cited by
2References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2011 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Jan 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optimized adaptive loop filter does not redesign filters inside the optimization loop of signaling depth which saves computations. Additionally, the Sum of Squared Errors (SSE) (distortion) of blocks is computed for the smallest blocks, thus, allowing for the distortion of larger blocks to be computed efficiently by adding block SSEs together which saves computations by removing redundant operations to calculate SSE of a block each time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.