Lg electronics inc. (20240187603). DMVR-BASED INTER-PREDICTION METHOD AND DEVICE simplified abstract
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DMVR-BASED INTER-PREDICTION METHOD AND DEVICE
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DMVR-BASED INTER-PREDICTION METHOD AND DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240187603 titled 'DMVR-BASED INTER-PREDICTION METHOD AND DEVICE
The image decoding method described in the patent application involves deriving motion vectors, refining them using decoder-side motion vector refinement (DMVR), and generating prediction and reconstruction samples based on these vectors.
- Deriving motion vectors for a current block
- Determining whether to apply refinement to the motion vector
- Applying DMVR to the motion vector if refinement is needed
- Deriving prediction samples based on the refined motion vector
- Generating reconstruction samples using the prediction samples
Potential Applications: - Video compression and encoding technologies - Multimedia streaming services - Video surveillance systems
Problems Solved: - Enhancing the accuracy of motion estimation in image decoding - Improving the quality of reconstructed images
Benefits: - Higher quality video output - More efficient compression algorithms - Enhanced user experience in multimedia applications
Commercial Applications: Title: Advanced Video Compression Technology for Enhanced Streaming Services This technology can be utilized in: - Video streaming platforms - Video conferencing applications - Security and surveillance systems
Prior Art: There may be existing methods for motion vector refinement in image decoding, but the specific implementation of DMVR as described in this patent application may be novel.
Frequently Updated Research: Stay updated on advancements in video compression and encoding technologies to incorporate the latest innovations in image decoding methods.
Questions about the technology: 1. How does the DMVR technique improve the accuracy of motion estimation in image decoding? 2. What are the potential implications of using this technology in video surveillance systems?
Original Abstract Submitted
an image decoding method performed by a decoding device according to the present document comprises the steps of: deriving a motion vector for a current block; determining whether to apply refinement to the motion vector for the current block; deriving a refined motion vector by applying decoder-side motion vector refinement (dmvr) to the motion vector if it is determined to apply refinement to the motion vector for the current block; deriving prediction samples for the current block on the basis of the refined motion vector; and generating reconstruction samples for the current block on the basis of the prediction samples, wherein the step of determining whether to apply refinement includes determining whether to apply the refinement on the basis of at least one of the size of the current block and bi-prediction weight index information for the current block.
