ISO/IEC 19794-9:2011/Amd 1:2013

INTERNATIONAL ISO/IEC
STANDARD 19794-9
Second edition
2011-10-01
AMENDMENT 1
2013-03-15

Information technology — Biometric data
interchange formats —
Part 9:
Vascular image data
AMENDMENT 1: Conformance testing
methodology
Technologies de l'information — Formats d'échange de données
biométriques —
Partie 9: Données d'images vasculaires
AMENDEMENT 1: Méthodologie des essais de conformité




Reference number
ISO/IEC 19794-9:2011/Amd.1:2013(E)
©
ISO/IEC 2013

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ISO/IEC 19794-9:2011/Amd.1:2013(E)

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ii © ISO/IEC 2013 – All rights reserved

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ISO/IEC 19794-9:2011/Amd.1:2013(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 1 to ISO/IEC 19794-9:2011 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 37, Biometrics.
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ISO/IEC 19794-9:2011/Amd.1:2013(E)

Information technology — Biometric data interchange
formats —
Part 9:
Vascular image data
AMENDMENT 1: Conformance testing methodology
1. The following text is to be added to the "Introduction" clause of ISO/IEC 19794-9:
Annex A addresses the conformance testing to be used for interchange format defined in this part of
ISO/IEC 19794. This Annex A is distinct from ISO/IEC 29109-9, which addressed conformance testing only of
the first, 2007, edition of ISO/IEC 19794-9.

2. The following text is to be added to the "Scope" clause of ISO/IEC 19794-9:
This part of ISO/IEC 19794 also specifies elements of conformance testing methodology, test assertions, and
test procedures as applicable to this part of ISO/IEC 19794. Specifically, it establishes
 test assertions of the structure of the vascular image data format as specified in Clause 8 of this part of
ISO/IEC 19794 (Type A Level 1 as defined in ISO/IEC 19794-1:2011/Amd.1),
 test assertions of internal consistency by checking the types of values that may be contained within each
field (Type A Level 2 as defined in ISO/IEC 19794-1:2011/Amd.1),
 tests of semantic assertions (Type A Level 3 as defined in ISO/IEC 19794-1:2011/Amd.1).
The conformance testing methodology specified in this part of ISO/IEC 19794 does not establish
 tests of other characteristics of biometric products or other types of testing of biometric products
(e.g. acceptance, performance, robustness, security),
 tests of conformance of systems that do not produce data records conforming to the requirements of this
part of ISO/IEC 19794.

3. The following text is to be added to the "Conformance" clause of ISO/IEC 19794-9:
Biometric data interchange format conformance tests conform to this part of ISO/IEC 19794 if they satisfy all
of the normative requirements set forth in Clauses 6, 7, and 8. Specifically, they shall use the test
methodology specified in ISO/IEC 19794-1:2011/Amd.1, and all Level 1, Level 2 and Level 3 tests shall use
the assertions defined in Table A.1 of Clause A.2 in this part of ISO/IEC 19794.
Implementations of this part of ISO/IEC 19794 tested according to the specified methodology shall be able to
claim conformance only to those biometric data record (BDB) requirements specified in this part of
ISO/IEC 19794 that are tested by the test methods established by this methodology.
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ISO/IEC 19794-9:2011/Amd.1:2013(E)
In consideration of the semantic specifics in different parts of ISO/IEC 19794, all Level 1, Level 2, and Level 3
tests shall use the assertions defined in Table A.2 of clause A.3 of this part of ISO/IEC 19794 in conformity
with the concept and rules set in ISO/IEC 19794-1, Annex A.

4. Replace the current Annex A with the following new annex:
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ISO/IEC 19794-9:2011/Amd.1:2013(E)
Annex A
(normative)

Conformance Testing Methodology
A.1 Introduction
This normative annex specifies elements of conformance testing methodology, test assertions, and test
procedures as applicable to this part of biometric data interchange format standard.
The testing methodology specified in ISO/IEC 19794-1:2011/Amd.1 shall apply. The content of the tables
below is based on the conformance testing methodology outlined in ISO/IEC 19794-1:2011/Amd.1 and shall
only be used in the context of that testing methodology.
A.2 Table of requirements in the base standard
The normative requirements of this part of ISO/IEC 19794 are listed in Table A.1. The supplier of the IUT
should explain which optional components of the standard are supported and the testing laboratory should
note the results of the test.
Table A.1 — Requirements of the Base Standard
Reference
Requirement IUT Supported Test
in Base Requirement Summary Level Status
ID Support Range Result
Standard
The quantities in all records and
vascular biometric image elements
R- 1 6.1 1 M N/A
(pixel data), if represented as multi-
byte quantities, are represented in
big-endian format.
The order for transmission shall also
be the most significant byte first and
6.1 the least significant byte last. Within 3C O-1 N/A N/T
R- 2
a byte, the order of transmission
shall be the most significant bit first
and the least significant bit last.
6.2 The scan sequence shall be raster 3C O-1 N/A N/T
R- 3
scan order.
The spatial sampling rate of the
7.1 3C O-1 N/A N/T
captured image shall be represented
R- 4
in terms of pixels per centimetre.
The image shall have a dynamic
range spanning at least 128 gray
7.2 1 M N/A
scale levels, allocating at least one
R- 5
byte (8 bits) per intensity value and
providing at least 7 bits of useful
intensity information.
The captured image shall be an
7.5 3C O-1 N/A N/T
R- 6 orthographic projection of the body
area being imaged.
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ISO/IEC 19794-9:2011/Amd.1:2013(E)
Reference
Requirement IUT Supported Test
in Base Requirement Summary Level Status
ID Support Range Result
Standard
If lossless compression is used the
image data shall be compressed in
accordance with the JPEG-LS
7.6.2 3C O-1 N/A N/T
lossless compression algorithm
R- 7
specified in ISO/IEC 14495 or the
JPEG2000 compression algorithm
specified in ISO/IEC 15444.
If lossy compression is used the
image shall be compressed in
accordance with the JPEG
7.6.3 3C O-1 N/A N/T
R- 8 compression algorithm specified in
ISO/IEC 10918 or the JPEG2000
compression algorithm specified in
ISO/IEC 15444.
Images captured with more than
three sensing channels shall be
7.6.4 3C O-1 N/A N/T
stored in accordance with the
R- 9
JPEG2000 compression algorithm as
specified in ISO/IEC 15444.
The location of human body used for
7.7 1 M N/A
R- 10 imaging shall be specified in the
format.
The direction (left/right) of hand
7.7 and/or finger index (thumb, index, 1 M N/A
R- 11
middle, ring, and little) shall be
specified.
The format identifier shall be
recorded in four bytes. The format
8.2.1 1 M N/A
identifier shall consist of three
R- 12
characters "VIR" followed by a zero
byte as a NULL string terminator.
The number for the version of that
part of ISO/IEC 19794 used for
constructing the BDIR shall be
placed in four bytes. This version
number shall consist of three ASCII
numerals followed by a zero byte as
8.2.2 N/A
a NULL string terminator. The first 1 M
R- 13
and second character will represent
the major version number and the
third character will represent the
minor revision number. Upon
approval of a specification, the initial
version number will be “020” –
Version 2 revision 0.
8.2.3 The length (in bytes) of the entire 1 M
R- 14
BDIR shall be recorded in four bytes.
This count shall be the total length of
8.2.3 the BDIR including the general 2 M
R- 15
record header and one or more
representation records.
The total number of representation
8.2.4 2 M
records contained in the BDIR shall
R- 16
be recorded in two bytes. A minimum
of one representation is required.
As this part of ISO/IEC 19794 does
8.2.5 1 M
not support certifications this field
R- 17
shall be 00 .
Hex
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ISO/IEC 19794-9:2011/Amd.1:2013(E)
Reference
Requirement IUT Supported Test
in Base Requirement Summary Level Status
ID Support Range Result
Standard
The representation-length field
8.3.2 denotes the length in bytes of the 1 M
R- 18
representation including the
representation header fields.
The representation-length four-byte
8.3.2 2 M
field shall contain the length in bytes
R- 19
of the vascular image.
The date and time field within a
representation header shall be stated
in Coordinated Universal Time
8.3.3 1 M
(UTC). The capture date and time
R- 20
field shall consist of 9 bytes. Its value
shall be encoded in the form given in
ISO/IEC 19794-1.
The capture device technology ID
shall be encoded in one byte. This
field shall indicate the class of
capture device technology used to
8.3.4 1 M
acquire the captured biometric
R- 21
sample. A value of 00Hex indicates
unknown or unspecified technology.
See Table 4 for the list of possible
values.
The capture device vendor identifier
shall identify the biometric
organization that owns the product
that created the BDIR. The capture
device algorithm vendor identifier
8.3.5 shall be encoded in two bytes 1 O
R- 22
carrying a CBEFF biometric
organization identifier (registered by
IBIA or other approved registration
authority). A value of all zeros shall
indicate that the capture device
vendor is unreported.
The capture device type identifier
shall identify the product type that
created the BDIR. It shall be
8.3.6 assigned by the registered product 1 O
R- 23
owner or other approved registration
authority. A value of all zeros shall
indicate that the capture device type
is unreported.
If the capture device vendor identifier
8.3.6 is 0000Hex, then also the capture 2 O
R- 24
device type identifier shall be
0000Hex.
'Number of quality block' field is
8.3.7.1 1 O
R- 25 followed by the number of 5-byte
Quality Blocks reflected by its value.
A value of zero (0) means that no
8.3.7.1 attempt was made to assign a quality 2 O
R- 26
score. In this case, no Quality Blocks
are present.
Quality score, as defined in ISO/IEC
29794-1, shall be a quantitative
8.3.7.2 3C O-1 N/A N/T
expression of the predicted
R- 27
verification performance of the
biometric sample.
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ISO/IEC 19794-9:2011/Amd.1:2013(E)
Reference
Requirement IUT Supported Test
in Base Requirement Summary Level Status
ID Support Range Result
Standard
An entry of 255 shall indicate a failed
attempt to calculate a quality score.
8.3.7.2 1 O
R- 28 This value of Quality Score is
harmonized with ISO/IEC 19784-1,
where 255 is -1.
Quality Algorithm Vendor ID shall be
8.3.7.3 registered with IBIA or other 3C O-1 N/A N/T
R- 29
approved registration authority as a
CBEFF biometric organization.
A value of all zeros shall indicate that
8.3.7.3 1 O
the value for 'Quality algorithm
R- 30
vendor ID' field is unreported.
Quality Algorithm ID may be
optionally registered with IBIA or
other approved registration authority
as a CBEFF Product Code. Refer to
8.3.7.4 1 O
CBEFF product registry procedures
R- 31
in ISO/IEC 19785-2.
A value of all zeros shall indicate that
the value for 'Quality algorithm ID'
field is unreported.
These two fields specify the
8.3.9 1 M
R- 32 horizontal and vertical image size in
pixels, in two bytes for each field.
'Bit-depth' field represents the
8.3.10
number of bits per pixel in a gray
1 Ｍ
R- 33 scale image or the number of bits per
color component per pixel in an RGB
image.
'Image position and property bit field'
is a mandatory field specifying the
8.3.11 1 M N/A
position, direction, and properties of
R- 34
the object. The first two bits specify
the direction of organ (toward the left
or the right).
The unit is degree normalized to 16-
8.3.12 1 O
R- 35 bit signed integer as (unsigned short)
round (65536*(angle%360) /360).
Two-byte field of ''Image format
specifies whether the image is
8.3.13 1 M
monochrome or color and how the
R- 36
image has been compressed if
applicable.
The type of illumination shall be
categorized based on the wavelength
of illumination source; that is, the
wavelength of visible illumination is in
8.3.14 1 O N/A
the range of 400 nm through 750 nm,
R- 37
the wavelength of NIR is in the range
of 750 nm through 5,000 nm, and the
wavelength of MIR is in the range of
5,000 nm through 25,000 nm.
6 © ISO/
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