ISO/IEC 23090-33:2025
(Main)Information technology — Coded representation of immersive media — Part 33: Conformance and reference software for haptics coding
Information technology — Coded representation of immersive media — Part 33: Conformance and reference software for haptics coding
The document specifies a set of tests and procedures designed to indicate whether encoders or decoders meet the requirements specified in ISO/IEC 23090-31.
Technologies de l'information — Représentation codée de médias immersifs — Partie 33: Conformité et logiciel de référence pour le codage haptique
General Information
Standards Content (Sample)
International
Standard
ISO/IEC 23090-33
First edition
Information technology — Coded
2025-11
representation of immersive media —
Part 33:
Conformance and reference
software for haptics coding
Technologies de l'information — Représentation codée de médias
immersifs —
Partie 33: Conformité et logiciel de référence pour le codage
haptique
Reference number
© ISO/IEC 2025
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© ISO/IEC 2025 – All rights reserved
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions .1
3.2 Abbreviated terms and symbols.2
4 Reference software . 2
4.1 General .2
4.2 Software location and license .2
4.3 Software installation .2
4.4 Software architecture .3
4.5 Software usage .3
4.5.1 General .3
4.5.2 Examples of encoding .3
4.5.3 Examples of decoding .3
4.5.4 Examples of synthesis .3
4.6 Input reference files and software evaluation .4
4.7 Reference software limitations .4
4.8 Recommended bitrates .5
5 Conformance testing . . 5
5.1 General .5
5.2 Conformance testing for interchange format .6
5.3 Conformance testing for MIHS stream .7
5.4 MIHS compatibility conformance .7
5.5 Conformance testing for decoder .8
5.6 Conformance testing and reference files .8
Annex A (informative) List of recommended bitrates with wavelet and vectorial encoding . 9
Annex B (informative) List of recommended bitrates with wavelet encoding only .13
Annex C (informative) List of recommended bitrates with vectorial encoding only . 17
Annex D (normative) List of HJIF schema constraints .18
Annex E (normative) List of HJIF semantic checks .20
Annex F (normative) List of MIHS constraints .22
Annex G (normative) List of HJIF constraints to ensure compatibility with MIHS .26
Annex H (informative) List of input reference files .28
Annex I (informative) List of schema conformance testing files .30
Annex J (informative) List of semantic conformance testing files.32
Annex K (informative) List of MIHS conformance testing files .33
Annex L (informative) List of MIHS compatibility testing files .34
Annex M (informative) List of MIHS conversion testing files .36
© ISO/IEC 2025 – All rights reserved
iii
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical activity.
ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations,
governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/
IEC Directives, Part 2 (see www.iso.org/directives or www.iec.ch/members_experts/refdocs).
ISO and IEC draw attention to the possibility that the implementation of this document may involve the
use of (a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any
claimed patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had not
received notice of (a) patent(s) which may be required to implement this document. However, implementers
are cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held
responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’s adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/iso/foreword.html.
In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
A list of all parts in the ISO/IEC 23090 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national-committees.
© ISO/IEC 2025 – All rights reserved
iv
Introduction
This document describes the reference software and the conformance testing for ISO/IEC 23090-31, coding
representation for Haptics. The reference software includes both encoder and decoder functionality.
The reference software is useful in aiding users of a standard for coding Haptics to establish and test
conformance and interoperability, and to educate users and demonstrate the capabilities of the standard.
For these purposes, the accompanying software is provided as an aid for the study and implementation of
ISO/IEC 23090-31 compression of Haptics.
© ISO/IEC 2025 – All rights reserved
v
International Standard ISO/IEC 23090-33:2025(en)
Information technology — Coded representation of
immersive media —
Part 33:
Conformance and reference software for haptics coding
1 Scope
The document specifies a set of tests and procedures designed to indicate whether encoders or decoders
meet the requirements specified in ISO/IEC 23090-31.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 23090-31:2025, Information technology — Coded representation of immersive media — Part 31:
Haptics coding
3 Terms, definitions, symbols and abbreviated terms
For the purposes of this document, the terms and definitions given in ISO/IEC 23090-31 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Terms and definitions
3.1.1
bitstream
sequence of bits that conforms to the syntax requirements specified by ISO/IEC 23090-31 or sequence of
bits to be tested for conformance to those syntax requirements
3.1.2
decoder
embodiment of the decoding process specified by ISO/IEC 23090-31
3.1.3
encoder
embodiment of a process, not specified in this document (except in respect to identification of the reference
software encoder), that produces a bitstream
3.1.4
reference software decoder
particular decoder (3.1.2) provided as a software package for use as an example available for study,
as a potential starting basis for the development of other decoders, as a way of testing bitstreams for
conformance, and as a reference for comparison with the behaviour of other decoders
© ISO/IEC 2025 – All rights reserved
3.1.5
reference software encoder
particular encoder (3.1.3) provided as a software package for use as an example available for study, as a
potential starting basis for the development of other encoders, and as a reference for comparison with the
behaviour of other encoders
3.2 Abbreviated terms and symbols
For the purposes of t
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