Overview
ISO/IEC 23090-29:2026 establishes the international standard for video-based dynamic mesh coding (V-DMC), specifically targeting the efficient coded representation and processing of immersive media. Developed by ISO and IEC, this standard specifies the syntax, semantics, and decoding processes for V-DMC, basemesh coding, MPEG edgebreaker static mesh coding, and arithmetic coded displacement. It provides a comprehensive framework for reconstructing visual volumetric media and incorporates essential processes, including post-decoding, pre-reconstruction, post-reconstruction, and adaptation.
The standard supports modern workflows handling dynamic 3D geometry in real-time immersive applications, providing industry-aligned methodologies for coding, transmission, and reconstruction of complex 3D mesh data.
Key Topics
- Video-Based Dynamic Mesh Coding (V-DMC): Techniques for encoding dynamic 3D mesh sequences using video data to optimize compression and delivery in immersive experiences.
- Basemesh Coding: Definition and processing of base-level mesh structures that form the foundation for further mesh refinement and dynamic updates.
- MPEG Edgebreaker Static Mesh Coding: Methods for coding static mesh data with edge-centric algorithms to achieve high compression of complex 3D models.
- Arithmetic Coded Displacement: Application of advanced entropy coding to displacement data for higher efficiency in mesh representation.
- Bitstream Specification: Detailed descriptions of the V-DMC bitstream format, including partitioning, scanning, and NAL (Network Abstraction Layer) formats.
- Decoding Operations: Mandatory decompression and interpretation steps, addressing both video and mesh data streams for synchronized reconstruction.
- Post-Processing: Procedures for refining and adapting reconstructed 3D meshes, including submesh combination, vector generation, and mesh attribute adaptation.
- Atlas and Tile Management: Use of atlases to organize 2D projections from 3D meshes and their segmentations into independently decodable tiles.
- Reconstruction Pipelines: Stepwise processes facilitating the creation of visual volumetric representations from coded data, including pre- and post-reconstruction operations.
Applications
ISO/IEC 23090-29:2026 supports a range of practical and industrial scenarios, including but not limited to:
- Immersive Media Experiences: Enables real-time transmission and display of 3D dynamic mesh content for augmented reality (AR), virtual reality (VR), and mixed reality (MR) platforms.
- 3D Video Streaming: Streamlines volumetric video and remote visualization services, reducing bandwidth and storage requirements through efficient coding.
- Gaming and Interactive Environments: Powers rich 3D animations and dynamic character representations where responsive and lightweight asset delivery is required.
- Telepresence and Collaboration: Provides the technical means for high-fidelity 3D avatars and spaces in remote collaboration systems.
- Industrial Simulation and Digital Twins: Facilitates efficient handling of 3D data in applications such as training simulators, product prototyping, and maintenance visualization.
By supporting mesh and video coding interoperability, as well as scalability, ISO/IEC 23090-29:2026 ensures robust delivery and flexible adaptation to varied client capabilities and network conditions.
Related Standards
ISO/IEC 23090-29:2026 is part of the broader ISO/IEC 23090 series, addressing immersive media technologies. Key related standards include:
- ISO/IEC 23090-5: Visual Volumetric Video-Based Coding (V3C) and Video-Based Point Cloud Compression (V-PCC) - provides foundations for volumetric data handling and compression, referenced extensively in V-DMC.
- ISO/IEC 23090-12: Specification for immersive video, offering guidelines for coding immersive visual content.
- ISO/IEC 23090-2: Coded representation of immersive media - covers foundational concepts for immersive coding standards.
- MPEG Edgebreaker: Specific static mesh coding techniques, normatively referenced for static scenes within V-DMC workflows.
These standards, in conjunction, offer a harmonized approach to capturing, transmitting, and reconstructing complex 3D content, enabling broad adoption of immersive technologies across multiple sectors.