ISO/IEC 23090-29:2026

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.