ISO/IEC 19794-6:2011
Information technology - Biometric data interchange formats - Part 6: Iris image data
ISO/IEC 19794-6:2011 specifies iris image interchange formats for biometric enrolment, verification and identification systems. The image information might be stored as
- an array of intensity values optionally compressed with ISO/IEC 15948 or ISO/IEC 15444, or
- an array of intensity values optionally compressed with ISO/IEC 15948 or ISO/IEC 15444 that might be cropped around the iris, with the iris at the centre, and which might incorporate region-of-interest masking of non-iris regions.
ISO/IEC 19794-6:2011 does not establish
- requirements on the optical specifications of cameras,
- requirements on photometric properties of iris images, or
- requirements on enrolment processes, workflow and use of iris equipment.
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1 Scope
2 Conformance
3 Normative references
4 Terms and definitions
5 Symbols and abbreviated terms
6 Iris image content specification
6.1 General
6.2 Uncropped Iris Image
6.3 VGA Iris Image
6.4 Cropped Iris Image
6.5 Cropped and Masked Iris Image
6.5.1 General
6.5.2 Masking of the sclera
6.5.3 Masking of the eyelids
6.5.4 Mask transition blurring
7 Iris image format specification
7.1 General
7.2 Iris image biometric data record
7.3 Iris general header structure
7.4 Iris representation header structure
7.4.1 Image type
7.4.2 Optional estimation of relative head and camera roll
7.4.2.1 Relative roll angle
7.4.2.2 Roll angle uncertainty
7.4.3 Localisation
7.4.4 Image data length
7.4.5 Header constants
7.5 Representation body
8 Registered Format Type Identifier
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1 Scope
2 Conformance
3 Normative references
4 Terms and definitions
5 Symbols and abbreviated terms
6 Iris image content specification
6.1 General
6.2 Uncropped Iris Image
6.3 VGA Iris Image
6.4 Cropped Iris Image
6.5 Cropped and Masked Iris Image
6.5.1 General
6.5.2 Masking of the sclera
6.5.3 Masking of the eyelids
6.5.4 Mask transition blurring
7 Iris image format specification
7.1 General
7.2 Iris image biometric data record
7.3 Iris general header structure
7.4 Iris representation header structure
7.4.1 Image type
7.4.2 Optional estimation of relative head and camera roll
7.4.2.1 Relative roll angle
7.4.2.2 Roll angle uncertainty
7.4.3 Localisation
7.4.4 Image data length
7.4.5 Header constants
7.5 Representation body
8 Registered Format Type Identifier