ETSI GS ARF 008 V1.1.1 (2024-12)

Augmented Reality Framework (ARF); Open APIs for Managing and Querying the World Analysis function

DGS/ARF-008

General Information

• Status: Not Published
• Technical Committee: ARF - Augmented Reality Framework
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Due Date: 10-Dec-2024
• Completion Date: 10-Dec-2024

Standards Content (Sample)

GROUP SPECIFICATION
Augmented Reality Framework (ARF);
Open APIs for Managing and
Querying the World Analysis function
Disclaimer
The present document has been produced and approved by the Augmented Reality Framework (ARF) ETSI Industry
Specification Group (ISG) and represents the views of those members who participated in this ISG.
It does not necessarily represent the views of the entire ETSI membership.

2 ETSI GS ARF 008 V1.1.1 (2024-12)

Reference
DGS/ARF-008
Keywords
API, augmented reality, context capturing and
analysis, interoperability, real world capture
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3 ETSI GS ARF 008 V1.1.1 (2024-12)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definition of terms, symbols and abbreviations . 6
3.1 Terms . 6
3.2 Symbols . 6
3.3 Abbreviations . 6
4 Basic structure of the World Analysis API for Pose and Capabilities . 7
4.1 Overview . 7
4.2 Pose estimation . 7
4.3 Structure of the API . 8
5 Description of the API . 8
5.1 Pose . 8
5.2 Capabilities . 9
Annex A (informative): Example Usage of the World Analysis API . 10
A.1 Introduction . 10
A.2 Specification of the Validation Application 'Server Maintenance' . 10
A.3 World Graph and AR Scene Graph of the Validation Application . 11
A.4 Example Usage of the API (Validation Application) . 11
History . 14

ETSI
4 ETSI GS ARF 008 V1.1.1 (2024-12)
Intellectual Property Rights
Essential patents
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pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI IPR online database.
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
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Foreword
This Group Specification (GS) has been produced by ETSI Industry Specification Group (ISG) Augmented Reality
Framework (ARF).
The ISG ARF shares the following understanding for Augmented Reality: Augmented Reality (AR) is the ability to mix
in real-time spatially-registered digital content with the real world. The present document specifies the interoperability
requirements for Reference Points AR 16 and AR 17 of the reference architecture for AR solutions defined in ETSI
GS ARF 003 [1].
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

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5 ETSI GS ARF 008 V1.1.1 (2024-12)
1 Scope
The present document provides an overview and an introduction to the interface specification for the reference point
"AR 8 - Pose" of the AR framework architecture [1] developed by the ETSI Industry Specification Group (ISG) for an
Augmented Reality Framework (ARF). The actual interface specification is provided as OpenAPI™ specification [3]
and forms the baseline for the present document.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found in the
ETSI docbox.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI GS ARF 003 (V1.1.1): "Augmented Reality Framework (ARF); AR framework
architecture".
[2] ETSI GS ARF 004-4 (V1.1.1): "Augmented Reality Framework (ARF); Interoperability
Requirements for AR components, systems and services; Part 4: World Analysis, World Storage
and Scene Management functions".
[3] ETSI GS ARF 005 (V2.1.1): "Augmented Reality Framework (ARF); Open APIs for the Creation,
Management and Querying of the World Representation".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] IETF RFC 4122: "A Universally Unique IDentifier (UUID) URN Namespace".
[i.2] IETF RFC 2616: "Hypertext Transfer Protocol HTTP/1.1".
[i.3] OpenAPI Specification v3.0.0.
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6 ETSI GS ARF 008 V1.1.1 (2024-12)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
AR experience: real time perception of the mixture of the real world and spatially-registered digital content by user
senses
AR system: combination of hardware and software that delivers an AR experience
Augmented Reality (AR): ability to mix in real-time spatially-registered digital content with the real world
feature: characteristics of a real world element that can be searched, recognized or tracked ®
NOTE: Features can be of different nature without being limited to visual patterns, UWB, Wi-Fi , Infra Red or
sounds.
pose: combination of position and orientation
reference point: point located at the interface of two non-overlapping functions of the AR framework architecture and
representing interrelated interactions between those functions
trackable: element of the real world of which features are available and/or could be extracted
NOTE: Features can be made available from an analysis of the element itself (fiducial markers, natural images,
3D point cloud) or processed from a representation of the element (3D CAD model).
world anchor: coordinate system related to an element of the real world on which virtual content stays spatially-
registered
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
API Application Programming Interface
AR Augmented Reality
ARF Augmented Reality Framework
ISG Industry Specification Group
JSON JavaScript Object Notation
REST REpresentational State Transfer
UI User Interface
UUID Universally Unique IDentifier
WA World Analysis
YAML YAML Ain't Markup Language
ETSI
7 ETSI GS ARF 008 V1.1.1 (2024-12)
4 Basic structure of the World Analysis API for Pose
and Capabilities
4.1 Overview
The World Analysis API for Pose (AR 8) allows the Scene Management to retrieve the Pose(s) of the AR device and/or
of one or more World Anchors and Trackables to update its AR scene representation at runtime. These Poses are
estimated by the World Analysis function which will require relocalization information extracted from the World Graph
stored in the World Storage function. The API also gives access to the capabilities of the World Analysis to the Scene
Management to adapt and offer the b
...