ISO/IEC 14496-5:2001/Amd 40:2019

Overview

ISO/IEC 14496-5:2001/Amd 40:2019 is an amendment to the international standard for coding audio-visual objects, specifically focusing on reference software enhancements. This amendment introduces critical functionalities related to printing material and 3D graphics coding for web browsers, enhancing the capabilities of the reference software for better implementation and interoperability.

Developed by ISO/IEC Joint Technical Committee JTC 1, Subcommittee SC 29, this update supports more sophisticated multimedia applications by providing standardized methods for assigning printing materials to 3D models and incorporating advanced 3D graphics coding for browser environments. The reference software included is freely accessible and serves as a cornerstone for developers aiming to implement or extend ISO-compliant solutions.

Key Topics

• Indexed Printing Region Set (IPRS) Functionality

  • Enables assigning 3D printing material information per region on a 3D model.
  • Facilitates accurate and efficient printing workflows by defining distinct material regions for 3D objects.
  • Reference software components involve classes such as indexedPrintingRegionSet, Slicer, and FileIO for data parsing, slicing, rendering, and file management.

• Web3D Coding Enhancements

  • Provides a JSON schema-based approach to describe 3D scenes compliant with ISO/IEC 14496-16:2011/Amd.3.
  • Supports the glTF format and includes JavaScript decoders natively executable in web browsers.
  • Includes key JavaScript modules like SC3DMCDecoder, bbaDecoder, Animator, and others to handle mesh coding, bone-based animation, and rendering.

• Integration with Web Technologies

  • Uses THREE.js library components (e.g., WebGLRenderer, Scene, PerspectiveCamera) for native browser support of complex 3D graphics.
  • Enables loading and animation of 3D models with sophisticated bone hierarchies and morphing capabilities.

• Reference Implementation Availability

  • The updated reference software packages and source files are publicly accessible via ISO's official standards repository, facilitating adoption and compliance.

Applications

• 3D Printing Industry
  Utilizes the Indexed Printing Region Set to assign specific materials to discrete regions of a 3D model for multi-material printing processes, improving product quality and manufacturing accuracy.

• Web-Based 3D Visualization
  Offers robust solutions for rendering, interacting with, and animating 3D models directly in web browsers without additional plugins, enabling enhanced user experiences in e-commerce, gaming, and virtual reality.

• Multimedia Content Development
  Supports developers and software vendors implementing MPEG-compliant tools for audio-visual applications, ensuring compatibility and standardization across platforms.

• Interactive 3D Graphics Coding
  Advances the coding of scalable complexity 3D meshes, bone animations, and morphing within a streamlined ecosystem that benefits browser-based applications, adaptive streaming, and content delivery networks.

Related Standards

• ISO/IEC 14496 (MPEG-4) Series
  The overall MPEG-4 standard encompassing the coding of audio-visual objects, with Part 5 focusing on reference software implementations.

• ISO/IEC 14496-16:2011/Amd.3
  Defines JSON schema implementations and scene descriptions linked to scalable 3D mesh coding and bone-based animation coding referenced by this amendment.

• glTF (GL Transmission Format)
  An open-standard file format for efficient transmission and loading of 3D scenes and models within web environments, foundational to Web3DCoding in this amendment.

• THREE.js Library
  A widely adopted JavaScript 3D library simplifying WebGL implementation, extensively utilized in the provided reference software for rendering and interactivity.

This amendment to ISO/IEC 14496-5 establishes a standardized foundation for printing material management and rich 3D graphics coding in browsers, supporting advanced multimedia use cases. It is essential for developers, manufacturers, and multimedia integrators who require interoperable, efficient, and flexible tools aligned with international standards. Accessing and implementing the reference software can significantly enhance product development and user engagement in the evolving digital media landscape.