ISO/IEC 14496-25:2011

Name: ISO/IEC 14496-25:2011 — Information technology — Coding of audio-visual objects — Part 25: 3D Graphics Compression Model
SKU: ISO/IEC 14496-25:2011
Price: 25 EUR
Availability: InStock

Information technology — Coding of audio-visual objects — Part 25: 3D Graphics Compression Model

Название (английский):

Information technology — Coding of audio-visual objects — Part 25: 3D Graphics Compression Model

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 5 мая 2011 г.
Издание:: ISO/IEC IS 14496 edition 2 version 1
ICS:: 35.040

Тип поставки:

Full version25 €Ask AI2 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:1 рабочий день

Цена:25 €

Описание (английский):

ISO/IEC 14496-25:2011 describes a model for connecting 3D graphics compression tools defined in ISO/IEC 14496 to graphics primitives defined in any other standard, specification or recommendation. The goal of ISO/IEC 14496-25:2011 is to specify an architectural model able to accommodate third-party XML based descriptions of scene graph and graphics primitives with (potential) binarization tools and with MPEG-4 3D graphics compression tools specified in ISO/IEC 14496-2, ISO/IEC 14496-11 and ISO/IEC 14496-16.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/IEC 14496-25:2011 - "3D Graphics Compression Model" - defines an architectural model that connects MPEG‑4 3D graphics compression tools to scene graph and graphics-primitive descriptions expressed in XML. The standard enables powerful MPEG‑4 geometry, texture and animation encoders to be applied to third‑party XML scene formats (for example XMT, COLLADA and X3D) and specifies how the resulting binary streams are packaged in MP4 files.

Key Topics and Requirements

Three-layer architecture:

Layer 1 - Textual Data Representation: any scene-graph or primitive representation expressed in XML (currently XMT, COLLADA, X3D are supported in normative annexes).
Layer 2 - Binarization: non-encoded XML data (scene metadata) is stored in the MP4 meta atom; binary representation may use gzip.
Layer 3 - Compression: MPEG‑4 elementary streams carry compressed geometry, texture and animation data as MP4 media tracks.

Supported MPEG‑4 compression tools (integrated via the model):

Geometry: 3DMCe (3D Mesh Compression Extension), SC3DMC (Scalable Complexity 3D Mesh Compression)
Animation: CI (Coordinate Interpolator), OI (Orientation Interpolator), PI (Position Interpolator), BBA (Bone‑Based Animation), FAMC (Frame‑based Animated Mesh Compression)

MP4 packaging and indexing:

Scene XML (text or binary) placed in meta atom; compressed elementary streams stored in moov atom as tracks.
Mapping between XML scene elements and MP4 tracks uses unique element_IDs and MP4 meta-box updates (data_references, item_location, item_name) via the File Format Pointer scheme.

Decoder/encoder models:

Encoding: split XML into elements to be compressed by MPEG‑4 tools and remaining metadata (optionally binarized), then multiplex to MP4.
Decoding: retrieve meta atom, decode elementary streams and reconstruct original XML scene.

Practical Applications and Who Would Use This Standard

Developers of 3D content pipelines who need efficient delivery of geometry, textures and animation in MP4 containers (e.g., streaming 3D assets).

Tool and codec implementers integrating MPEG‑4 3D compression into engines that consume XML scene formats (COLLADA, X3D, custom XML).

AR/VR, games and interactive media vendors looking to leverage MPEG‑4 compression for reduced bandwidth and storage.

Standards bodies and integrators seeking interoperability between XML scene descriptions and MPEG‑4 compression toolsets.

Implementation Notes

Input scene graphs must be XML‑based; annexes provide normative mappings for XMT, COLLADA and X3D.

Binary XML default binarization is gzip; images must be in PNG/JPEG/JPEG2000 for native MP4 encapsulation or converted before packaging.

Elementary streams require proper element_ID mapping so decoders can associate tracks with scene nodes.

Related Standards

ISO/IEC 14496 (MPEG‑4) family: Parts 2 (Visual), 11 (Scene description / interpolators), 16 (3D graphics/animation tools), 12 (ISO base media file format), 14 (MP4 file format)

X3D standard: ISO/IEC 19775

COLLADA specification (Khronos Group)

Keywords: ISO/IEC 14496-25:2011, 3D Graphics Compression Model, MPEG‑4, XML scene graph, COLLADA, X3D, XMT, MP4, 3DMCe, SC3DMC, CI OI PI BBA FAMC, binarization, scene graph compression.

ISO/IEC 14496-25:2011

Abstract

Похожие стандарты

Overview

Key Topics and Requirements

Practical Applications and Who Would Use This Standard

Implementation Notes

Related Standards

Технические детали

ISO/IEC 14496-23:2008

Information technology — Coding of audio-visual objects — Part 23: Symbolic Music Representation

ISO/IEC 19775-2:2010

Information technology — Computer graphics and image processing — Extensible 3D (X3D) — Part 2: Scene access…

ISO 8212:1986

Soaps and detergents — Techniques of sampling during manufacture

ISO 20662:2020

Ships and marine technology — Hopper dredger supervisory and control systems

ISO 3021:2023

Adventure tourism — Hiking and trekking activities — Requirements and recommendations

ISO 3826-2:2008

Plastics collapsible containers for human blood and blood components — Part 2: Graphical symbols for use on l…

ISO/IEC 24730-1:2014

Information technology — Real-time locating systems (RTLS) — Part 1: Application programming interface (API)

ISO 8668-5:1992

Aircraft — Terminal junction systems — Part 5: Detail specification for type 3 system