BS ISO/IEC 19794-4:2005:2019 Edition
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Information technology. Biometric data interchange formats – Finger image data
Published By | Publication Date | Number of Pages |
BSI | 2019 | 28 |
This part of the ISO/IEC 19794 standard specifies a data record interchange format for storing, recording, and transmitting the information from one or more finger or palm image areas within an ISO/IEC 19785‑1 CBEFF data structure. This can be used for the exchange and comparison of finger image data. It defines the content, format, and units of measurement for the exchange of finger image data that may be used in the verification or identification process of a subject. The information consists of a variety of mandatory and optional items, including scanning parameters, compressed or uncompressed images and vendor-specific information. This information is intended for interchange among organizations that rely on automated devices and systems for identification or verification purposes based on the information from finger image areas. Information compiled and formatted in accordance with this part of the ISO/IEC 19794 standard can be recorded on machine-readable media or may be transmitted by data communication facilities.
PDF Catalog
PDF Pages | PDF Title |
---|---|
2 | National foreword |
7 | Foreword |
8 | Introduction |
9 | 1 Scope 2 Conformance 3 Normative references 4 Terms and definitions |
11 | 5 Abbreviated terms 6 Data conventions 6.1 Byte and bit ordering 6.2 Scan sequence |
12 | 7 Image acquisition requirements 7.1 General 7.2 Pixel aspect ratio |
13 | 7.3 Pixel depth 7.4 Grayscale data 7.5 Dynamic range 7.6 Scan resolution |
14 | 7.7 Image resolution 7.8 Fingerprint image location 8 Finger image record format 8.1 Record structure 8.2 General record header 8.2.1 Required fields |
15 | 8.2.2 Format identifier 8.2.3 Version number 8.2.4 Record length 8.2.5 Capture device ID 8.2.6 Image acquisition level |
16 | 8.2.7 Number of finger/palm images 8.2.8 Scale units 8.2.9 Scan resolution (horizontal) 8.2.10 Scan resolution (vertical) 8.2.11 Image resolution (horizontal) 8.2.12 Image resolution (vertical) 8.2.13 Pixel depth 8.2.14 Image compression algorithm |
17 | 8.2.15 Reserved 8.3 Finger record header 8.3.1 Required fields 8.3.2 Length of finger/palm data block |
18 | 8.3.3 Finger/palm position |
19 | 8.3.4 Count of views 8.3.5 View number 8.3.6 Finger/palm image quality 8.3.7 Impression type 8.3.8 Horizontal line length 8.3.9 Vertical line length 8.3.10 Reserved |
20 | 8.3.11 Finger/palm image data |
21 | Annex A (normative) Image quality specifications |
26 | Annex B (informative) Finger image data record example |
27 | Bibliography |