History-based motion vector prediction
By introducing a history-based motion vector prediction system in the video encoding system, using the motion information of previous blocks and the double prediction weight index to generate motion compensation prediction signals, the problem of degraded video encoding performance is solved, and higher encoding efficiency and better Low storage and transmission bandwidth requirements.
CN119155461APending Publication Date: 2024-12-17INTERDIGITAL VC HOLDINGS INC
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202411393600.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2018-12-29
- Filing Date
- 2019-12-19
- Publication Date
- 2024-12-17
AI Technical Summary
Technical Problem
History-based motion vector prediction degrades encoding performance in video encoding systems, resulting in increased storage and transmission bandwidth.
Method used
By introducing a history-based motion vector prediction (HMVP) system into a video encoding device, the motion information of the previous coded block and the double prediction weight index are used to generate the motion compensation prediction signal of the current block, and the encoding efficiency is improved by pruning and optimizing the HMVP list.
Benefits of technology
It improves the encoding efficiency of the video encoding system, reduces the storage and transmission bandwidth requirements, and enhances the inter-frame encoding performance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119155461A_ABST
Abstract
The invention relates to history-based motion vector prediction. Systems, methods, and instrumentalities for processing history-based motion vector prediction (HMVP) are disclosed. A video encoding device may generate a history-based motion vector prediction (HMVP) list for a current block. The video encoding apparatus derives an HMVP candidate from a previously encoded block. The HMVP candidate may include motion information associated with a neighboring block of the current block, one or more reference indices, and a dual prediction weight index. The video coding device may add the HMVP candidate to the HMVP list for motion compensated prediction of a motion vector associated with the current block. The video encoding apparatus performs motion compensated prediction of the current block using one HMVP selected from the HMVP list. The motion compensated prediction may be performed by using the motion information associated with the neighboring block of the current block, the one or more reference indexes, and the dual prediction weight index.
Need to check novelty before this filing date? Find Prior Art