Operating Point Signaling for High-Resolution Media Files
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Solution Overview
Problem
The increasing demand for high-resolution, high-quality video and immersive media formats such as 4K, 8K, VR, and AR content necessitates a more efficient image compression technique to reduce transmission and storage costs.
Innovation Solution
A method and apparatus for generating and processing media files that include information on operating points, incomplete operating points, and operating point availability indicators, allowing for improved coding efficiency by signaling the availability of only some operation points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high-resolution, high-quality video and immersive media are transmitted and stored, then image quality and resolution are improved, but transmission and storage costs increase
Solution Approach 1:
The patent introduces operating point indicators that signal the availability of different quality levels (operating points) in the media data. By changing the parameter of quality indication from implicit to explicit signaling, the system enables receivers to selectively access only the necessary quality levels, reducing unnecessary transmission and storage resources while maintaining high image quality when needed.
2Adaptability or versatility
If all operating points are always available, then coding flexibility is improved, but data structure complexity increases
Solution Approach 1:
The patent segments the availability information of operating points into distinct indicator fields within the data structure. By separating the signaling of different operating point availability states (first, second, and third indicators), the system maintains clear and manageable data structure complexity while preserving the ability to represent various coding flexibility scenarios.
3Productivity
If operating point availability is fully signaled, then coding efficiency is improved, but processing time increases
Solution Approach 1:
The patent implements partial signaling by using operating point indicators that provide just enough information about availability without over-specifying all possible states. The indicator structure signals only the necessary availability information (first indicator for complete availability, second for partial availability, third for incomplete availability), achieving coding efficiency improvements while minimizing the processing time required to parse and interpret the signaling data.
Data Source
AI summary
The present document provides a media file generation method performed by a media file generation device. The method comprises the steps of configuring a group related to at least one operating point and generating a media file including the group, wherein: the group is one of an entity group and a sample group; the group includes number information on the number of operating points, a flag for incomplete operating points, which indicates whether one or more operating points are incomplete, and operating point available indicator information; a value of the operating point available indicator information indicates one of particular states; and the particular states include a first state related to an operating point being complete, a second state related to non-availability of an output layer set associated with the operating point, and a third state related to nonavailability of one or more temporal sub-layers associated with the operating point.