USING A DCT-BASED INTERPOLATION FILTER
Patent Information
- Application Number
- DE602020051737
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-10-29
- Filing Date
- 2020-09-30
- Publication Date
- 2025-05-21
- Estimated Expiration
- 2040-09-30
AI Technical Summary
Existing video coding technologies face challenges in efficiently compressing and decompressing video data while maintaining high picture quality, particularly due to large reference areas in affine motion compensation, which can lead to increased memory bandwidth requirements.
The proposed method involves determining control point motion vectors for affine coded blocks, calculating a reference area in the reference picture, and adjusting motion vector clipping based on the size of this reference area. This approach ensures that memory bandwidth requirements are met by selectively applying motion vector clipping only when necessary.
This method effectively manages memory bandwidth by optimizing motion vector clipping, thereby improving video coding efficiency and maintaining picture quality, especially in scenarios with large reference areas.