GB/T 36341.3-2018Information technology—Information presentation of shape modeling—Part 3: Streaming transmission (English PDF)
信息技术 形状建模信息表示 第3部分：流式传输
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 7, 2018
Implementation date
January 1, 2019
Scope
GB/T 36341.3-2018 is the English-translated version of 信息技术 形状建模信息表示 第3部分：流式传输.
GB/T 36341.3-2018 is Part 3 of GB/T 36341 on shape modeling information representation and covers the streaming transmission of 3D models. It specifies the stream file format, with the file header, the identification field, nodes, the basic transmission unit and the end unit, and stream file generation by streaming coding and transfer preparation.
It also covers the network transmission process with its quality of service requirements, and the decoding of the stream file. Streaming means encoding a model at embedded multiple resolutions so that a client can rebuild a model at some level of detail from the data already received.
It applies to progressive transmission of 3D models over the Internet in assisted design, 3D animation, virtual, augmented and mixed reality, digital medicine, entertainment and e-commerce. It was issued on 7 June 2018 and has applied since 1 January 2019.
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Document preview — GB/T 36341.3-2018
National Standard of the People's Republic of China
- ICS
- 35.140
- Classification
- L 81
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Abbreviations
- 5 stream file format
- 5.1 Overview
- 5.2 File Head
- 5.3 Identification Domain
- 5.4 Node
- 5.5 Basic Transmission Unit
- 5.6 End unit
- 6 stream file generation
- 6.1 Streaming Code
- 6.2 Transfer Preparation
- 7 Streaming Process
- 7.1 Network transmission process
- 7.2 QoS requirements
- 8 stream file decoding
Foreword
GB/T 36341 "Information Technology Shape Modeling Information Representation" is divided into four parts.
--- Part 1. Framework and basic components;
--- Part 2. Feature constraints;
--- Part 3. Streaming;
--- Part 4. Storage format.
This part is the third part of GB/T 36341.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This part of GB/T 36341 specifies the streaming file format and streaming process in the shape modeling information representation.
This section applies to assisted design, 3D animation, virtual reality, augmented reality or mixed reality, 3D digital medicine, 3D digital entertainment, Progressive transmission of 3D models in the field of e-commerce on the Internet.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 36341.1 Information technology shape modeling information representation Part 1. Framework and basic components
3 Terms and definitions
The following terms and definitions as defined in GB/T 36341.1 apply to this document.
3.1 Embedded multi-resolution
A way of multi-resolution representation of information (often referred to as multimedia information). In this way of representation, lower resolution The representation is embedded within the higher resolution representation, and the higher resolution representation is incrementally built on the lower resolution representation.
3.2 Streaming
A method of encoding a 3D model in an embedded multi-resolution manner and then responding according to user requirements from the server to the server The way the client performs continuous transmission. The main purpose is to reduce the initial waiting time when the user interacts, and can always be in the process of transmission. The transmission is stopped and a model of a level of detail can be reconstructed from the received data.
3.3 Identification field
A field that controls the transmission of data information for determining transmission content, transmission priority, transmission reliability, data length, and the like.
3.4 Node
A resource unit of an organization scene, which is used to store data information objects, consisting of basic feature wireframe nodes, base mesh nodes, and refined nodes. And so on.
3.5 Quality of service
A technique for solving problems such as network latency and blocking. Including the bandwidth of the transmission, the delay of transmission, the packet loss rate of the data, etc. Provisions.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 36341.1-2018 — Information technology—Information representation of shape modeling—Part 1: Framework and basic component
GB/T 36341.4-2018 — Information technology—Information presentation of shape modeling—Part 4: Storage format
GB/T 36341.2-2018 — Information technology—Information representation of shape modeling—Part 2: Feature constraint
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GB/T 36341.3-2018
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