Volumetric Media Processing With Atlas-Based 3D Compression
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Solution Overview
Problem
Traditional video coding techniques are inefficient for representing three-dimensional visual scenes, requiring large data volumes and costly storage and transmission.
Innovation Solution
Encoding and decoding techniques for volumetric media using V-PCC and MIV standards, leveraging existing video codecs to represent 3D information efficiently, and utilizing ISO/IEC 14496-12 ISOBMFF for storage and DASH for streaming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional two-dimensional video coding techniques are used to encode three-dimensional visual scenes, then the encoding process is simple and compatible with existing standards, but the representation efficiency is poor and large data volumes are required
Solution Approach 1:
The patent transitions from traditional two-dimensional video coding to volumetric coding by introducing a third dimension (depth). The system encodes three-dimensional visual scenes by capturing depth information and spatial position data in addition to conventional image data, thereby achieving efficient 3D representation while maintaining compatibility with existing video coding standards through incremental dimensionality enhancement
2Measurement precision
If three-dimensional visual information is captured and transmitted with high precision, then the visual quality and immersive experience are improved, but the storage and transmission costs increase
Solution Approach 1:
The patent employs parameter changes by encoding depth information and spatial position data using optimized data representations. The system adjusts coding parameters to balance precision requirements with data volume constraints, using efficient encoding schemes that maintain high visual quality and six degrees of freedom support while reducing the overall data burden for storage and transmission
Data Source
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AI summary
Methods, systems and apparatus for processing of volumetric media data are described. One example method of volumetric media determining, from a media presentation description (MPD) file, one or more preselection elements corresponding to a preselection of a volumetric media, accessing, using the one or more preselection elements, one or more atlas data components and associated video-encoded components of the volumetric media; and reconstructing the volumetric media from the one or more atlas data components and the associated video-encoded components.