Merge Data Syntax Removal for Efficient Inter Prediction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing demand for high-resolution, high-quality images and videos, particularly in virtual reality and augmented reality, leads to higher data transmission and storage costs due to the increased amount of information required, necessitating a more efficient compression technique.
Innovation Solution
A method and apparatus for removing redundant syntax from merge data syntax in video/image coding systems, enhancing coding efficiency by efficiently performing inter prediction and signaling information on merge modes, while removing unnecessary signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high resolution and high quality image/video are transmitted and stored, then image quality is improved, but transmission and storage costs are increased
Solution Approach 1:
The patent extracts and removes redundant syntax elements from the video data stream, specifically eliminating unnecessary merge candidate information and prediction mode data that do not contribute to visual quality but increase bitstream volume
Solution Approach 2:
The patent changes the parameter of syntax element representation by removing redundant flags and syntax from the bitstream, transforming the data structure to achieve more efficient compression while preserving image quality
2Measurement precision
If merge candidate list is configured with multiple candidates, then prediction accuracy is improved, but syntax complexity is increased
Solution Approach 1:
The patent extracts only the essential merge candidate information needed for accurate prediction, removing redundant candidate data and unnecessary syntax elements from the merge candidate list configuration
Solution Approach 2:
The patent applies partial action by selectively including only necessary merge candidates in the list rather than configuring all possible candidates, achieving sufficient prediction accuracy with reduced syntax overhead
3Manufacturing precision
If detailed prediction mode information is signaled, then coding precision is improved, but signaling overhead is increased
Solution Approach 1:
The patent removes redundant prediction mode syntax elements from the bitstream, extracting only the essential information needed to reconstruct the prediction mode at the decoder without unnecessary signaling overhead
Data Source
AI summary
A decoding method performed by a decoding device according to the present document comprises the steps of determining a prediction mode of a current block on the basis of information about a prediction mode obtained from a bitstream; constructing a merge candidate list on the basis of the prediction mode; deriving motion information of the current block on the basis of the merge candidate list; and generating prediction samples of the current block on the basis of the motion information, wherein the bitstream includes information about a combined inter-picture merge and intra-picture prediction (CIIP) available flag indicating whether the CIIP is available, and the determination step may include a step of acquiring a regular merge flag from the bitstream on the basis of the CIIP available flag.