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DS/ISO/IEC 39794-6:2021
Information technology - Extensible biometric data interchange formats - Part 6: Iris image data
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.
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