Overlapped block motion compensation
US11425418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2018 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Nov 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/55
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
External overlapped block motion compensation (OBMC) may be performed for samples of a coding unit (CU) located along an inter-CU boundary of the CU while internal OBMC may be performed separately for samples located along inter-sub-block boundaries inside the CU. External OBMC may be applied based on substantially similar motion information associated with multiple external blocks neighboring the CU. The external blocks may be treated as a group to provide OBMC for multiple boundary samples together in an external OBMC operation. Internal OBMC may be applied using the same sub-block size used for sub-block level motion derivation. Internal OBMC may be disabled for the CU, for example, if the CU is coded in a spatial-temporal motion vector prediction (STMVP) mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.