3D Media Streaming Adaptation via MPD Component Segmentation
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Solution Overview
Problem
Current media streaming technologies are inadequate for efficiently transmitting and receiving three-dimensional (3D) media, which have distinct attributes and structures different from two-dimensional (2D) media, in communication systems, as they lack the necessary mechanisms to adaptively process and deliver 3D content effectively.
Innovation Solution
A method and device for transmitting and receiving 3D media using a media presentation description (MPD) that includes content type information, configuration type information, role information, quality priority information, and quality evaluation information, allowing for adaptive selection and processing of 3D media content components, enabling efficient transmission and reception of 3D media with different attributes and structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If media streaming services use conventional 2D media transmission protocols, then the system complexity remains low, but the ability to transmit and process 3D media content is insufficient
Solution Approach 1:
The patent segments 3D media content into multiple content components (e.g., depth map, texture, normal map, occlusion map) that can be independently encoded, transmitted, and processed. Each component is handled as a separate data stream with its own encoding parameters, allowing the system to manage 3D content complexity through modular processing while maintaining overall system efficiency
Solution Approach 2:
The patent introduces new parameters in the MPD (Media Presentation Description) file to describe 3D media-specific attributes such as content type indicators, component configuration types, role information, quality priorities, and quality evaluation metrics. These parameter extensions enable the existing streaming infrastructure to handle 3D content without fundamental protocol changes
2Reliability
If all 3D media content components are transmitted with high quality, then the content quality is improved, but the network bandwidth consumption increases
Solution Approach 1:
The patent enables different quality levels for different content components based on their importance and the viewer's device capabilities. Critical components like depth maps may be transmitted at higher quality, while less critical components can use lower quality encoding. The system dynamically adjusts quality distribution across components to optimize the balance between visual fidelity and bandwidth consumption
Solution Approach 2:
The patent implements dynamic quality adjustment where the streaming system adapts content component quality in real-time based on network conditions, device capabilities, and user preferences. The MPD file contains quality priority information that guides dynamic resource allocation, allowing the system to maintain acceptable quality while responding to changing network conditions
3Adaptability or versatility
If the terminal processes all content components independently, then the processing flexibility is improved, but the processing time and computational load increase
Solution Approach 1:
The patent performs preliminary organization of content components during the encoding and packaging phase. The MPD file is generated in advance with complete information about component relationships, dependencies, and processing requirements. This pre-processing allows the terminal to efficiently retrieve and assemble components without performing complex real-time analysis, reducing processing time while maintaining flexibility
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for receiving media content by a client is provided. The method includes receiving, from a server, a media presentation description (MPD) including content type information for three-dimensional (3D) media content and configuration type information for the 3D media content, accessing a segment of the 3D media content based on information included in the MPD, and receiving the 3D media content based on the segment. The content type information may indicate an identifier for the 3D media content, and the configuration type information may indicate whether quality is adjustable for each of content components of the 3D media content.