ISO/IEC 15938-7:2003/Amd 5:2010

Information technology — Multimedia content description interface — Part 7: Conformance testing — Amendment 5: Conformance testing for image signature tools

Technologies de l'information — Description de l'interface du contenu multimédia — Partie 7: Essais de conformité — Amendement 5: Essai de conformité pour outils de signature d'image

General Information

• Status: Published
• Publication Date: 26-Jul-2010
• ICS: 35.040 - Information coding
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Current Stage: 6060 - International Standard published
• Start Date: 27-Jul-2010
• Due Date: 13-Jan-2012
• Completion Date: 13-Jan-2012

Relations

• Amends: ISO/IEC 15938-7:2003 - Information technology — Multimedia content description interface — Part 7: Conformance testing
• Effective Date: 31-Jul-2021

Overview

ISO/IEC 15938-7:2003/Amd 5:2010 is an amendment to the established ISO/IEC 15938-7:2003 standard, focusing specifically on conformance testing for image signature tools. Developed by ISO and IEC Joint Technical Committee 1 (JTC 1), Subcommittee SC 29, this standard plays a critical role in the field of information technology for multimedia content description and analysis. The amendment is a vital part of the MPEG-7 framework, permitting reliable validation of implementations that extract and process image signature descriptors in conformance with the prescribed format and processes.

Key Topics

• Image Signature Descriptor Conformance: This amendment defines rigorous methods for assessing whether an image signature extraction tool adheres to the standard's requirements.
• Test Dataset and Reference Descriptors: Conformance testing utilizes a set of 625 standardized test images, each accompanied by a reference image signature descriptor.
• Global and Local Image Signature Validation: The standard establishes validity criteria for both global (GlobalSignatureA and GlobalSignatureB) and local (LocalSignature) image signature elements.
• Measuring Bitwise Correspondence:
  • For global components, no more than 16 out of 512 bits may differ.
  • For local components, matching is determined by spatial correspondence of coordinates, allowing no more than 3 bit differences out of 60 per local signature. At least 78 out of 80 components must match for conformance.

Applications

ISO/IEC 15938-7:2003/Amd 5:2010 has strong practical value for organizations and developers engaged in multimedia content management and analysis, especially in areas where standardized descriptors support accurate content identification and retrieval. Common applications include:

• Multimedia Content Management Systems: Ensuring image signature extraction modules conform to international standards, facilitating robust content search and organization.
• Image Search and Retrieval Technologies: Validating software tools for reliable image similarity assessments using standardized signatures.
• Research and Academic Projects: Supporting the development and evaluation of algorithms for image feature extraction and conformance.
• Product Certification and Compliance: Enabling vendors to demonstrate the reliability and interoperability of their image signature tools through formal conformance testing.

Adhering to this amendment ensures interoperability in multimedia systems and enhances trust in digital image processing solutions.

Related Standards

• ISO/IEC 15938 Series (MPEG-7): A family of standards for the description and management of multimedia content.
  • ISO/IEC 15938-3:2002/Amd.3:2009: Specifies the extraction method for image signature descriptors referenced in this amendment.
  • ISO/IEC 15938-7:2003: The core standard for conformance testing in the multimedia content description framework.
• ISO/IEC JTC 1/SC 29 Standards: Broader technical standards for audio, picture, multimedia, and hypermedia coding.

For more information, refer to the official ISO website and the relevant technical committees involved in multimedia standardization.

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By adhering to ISO/IEC 15938-7:2003/Amd 5:2010, professionals ensure that image signature tools are validated against internationally accepted benchmarks, supporting high-quality, interoperable, and future-proof solutions for multimedia content description and retrieval.

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 15938-7
First edition
2003-12-01
AMENDMENT 5
2010-08-01
Information technology — Multimedia
content description interface —
Part 7:
Conformance testing
AMENDMENT 5: Conformance testing for
image signature tools
Technologies de l'information — Description de l'interface du contenu
multimédia —
Partie 7: Essais de conformité
AMENDEMENT 5: Essai de conformité pour outils de signature d'image

Reference number
ISO/IEC 15938-7:2003/Amd.5:2010(E)
©
ISO/IEC 2010
ISO/IEC 15938-7:2003/Amd.5:2010(E)
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ISO/IEC 15938-7:2003/Amd.5:2010(E)
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. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 5 to ISO/IEC 15938-7:2003 was prepared by Joint Technical Com
...

INTERNATIONAL ISO/IEC
STANDARD 15938-7
First edition
2003-12-01
AMENDMENT 5
2010-08-01
Information technology — Multimedia
content description interface —
Part 7:
Conformance testing
AMENDMENT 5: Conformance testing for
image signature tools
Technologies de l'information — Description de l'interface du contenu
multimédia —
Partie 7: Essais de conformité
AMENDEMENT 5: Essai de conformité pour outils de signature d'image

Reference number
ISO/IEC 15938-7:2003/Amd.5:2010(E)
©
ISO/IEC 2010
ISO/IEC 15938-7:2003/Amd.5:2010(E)

PDF disclaimer
PDF files may contain embedded typefaces. In accordance with Adobe's licensing policy, such files may be printed or viewed but shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading a PDF file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create the PDF file(s) constituting this document can be found in the General Info relative to
the file(s); the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the files are suitable for
use by ISO member bodies. In the unlikely event that a problem relating to them is found, please inform the Central Secretariat at the
address given below.
This CD-ROM contains:
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viewed using Adobe® Acrobat® Reader;
2) files for conformance testing for image signature tools.
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