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  • BSI
    BS ISO/IEC 39794-6:2021 Information technology. Extensible biometric data interchange formats - Iris image data
    Edition: 2021
    $473.45
    / user per year

Description of BS ISO/IEC 39794-6:2021 2021

This document specifies:

  • generic extensible data interchange formats for the representation of iris image data: a tagged binary data format based on an extensible specification in ASN.1 and a textual data format based on an XML schema definition that are both capable of holding the same information,

  • examples of data record contents,

  • application specific requirements, recommendations, and best practices in data acquisition, and

  • conformance test assertions and conformance test procedures applicable to this document.

The iris image information is stored as:

  • an array of intensity values optionally compressed with ISO/IEC 15948 or ISO/IEC 15444-1 , or

  • an array of intensity values optionally compressed with ISO/IEC 15948 or ISO/IEC 15444-1 that can be cropped around the iris, with the iris at the centre, and which can incorporate region-of-interest masking of non-iris regions.

This document also specifies elements of conformance testing methodology, test assertions, and test procedures, as applicable to this document.

It establishes:

  • test assertions pertaining to the structure of the iris image data format, as specified in Clauses 6, 7, 8 and 9 of this document,

  • test assertions pertaining to internal consistency by checking the types of values that may be contained within each field, and

  • semantic test assertions.

The conformance testing methodology specified in this document does not establish:

  • tests of other characteristics of biometric products or other types of testing of biometric products (e.g. acceptance, performance, robustness, security), or

  • tests of conformance of systems that do not produce data records conforming to the requirements of this document.

This document does not establish:

  • requirements on the optical specifications of cameras, or

  • requirements on photometric properties of iris images, or

  • requirements on enrolment processes, workflow and use of iris equipment.



Standard NumberBS ISO/IEC 39794-6:2021
TitleInformation technology. Extensible biometric data interchange formats - Iris image data
StatusDefinitive
Publication Date2021-03-11
Identical National Standard OfISO/IEC 39794-6
DescriptorsInformation technology, Biometrics, Electronic data interchange for administ, Data transmission, Message handling systems, Electronic data interchange
ICS35.240.15 Identification cards and related devices
CommitteeIST/44/-/3
ISBN978 0 539 04217 7
PublisherBSI
Pages46

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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