VVC Decoder Configuration Records With PTL-Aware Operating Points
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing demand for high-resolution and high-quality images has led to higher transmission and storage costs due to the increased amount of information required, necessitating a more efficient image compression technique.
Innovation Solution
A method and apparatus for generating media files that include decoder configuration records with flag information on Profile Tier Level (PTL) presence, operating points, average frame rate, and constant frame rate, reducing signaling redundancy and improving coding efficiency by omitting unnecessary information in the VVC decoder configuration record.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution and high-quality image data is transmitted or stored, then image quality is improved, but transmission cost and storage cost increase due to increased amount of information
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the decoder configuration record based on the presence or absence of PTL information. When PTL information is absent, the system modifies the configuration record by omitting unnecessary operating point information, thereby changing the data parameters to reduce redundancy while maintaining image quality
2Reliability
If complete decoder configuration record with all operating points is generated, then decoding capability is improved, but signaling redundancy increases
Solution Approach 1:
The patent extracts unnecessary information from the decoder configuration record by removing operating point details when PTL information is not present. This extraction process eliminates signaling redundancy while preserving essential decoding capabilities through selective inclusion of only necessary configuration parameters
3Adaptability or versatility
If all information is included in decoder configuration record, then compatibility is improved, but coding efficiency decreases due to unnecessary information
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different configuration parameters based on their necessity. Essential parameters like PTL information are maintained for compatibility, while optional operating point information is selectively omitted when not needed, thereby optimizing coding efficiency without compromising necessary compatibility
Data Source
AI summary
A method for generating a media file according to the present document is characterized by comprising the steps of: configuring flag information about whether profile tier level (PTL) information exists; configuring information about operating points on the basis of the flag information; and generating a media file including a decoder configuration record, wherein the decoder configuration record includes the flag information, the information about the operating points is configured in the decoder configuration record on the basis of the flag information equal to 1, and the information about the operating points includes information about an average frame rate, information about a constant frame rate, and information about the number of temporal sub-layers.