🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS ISO/IEC 29794-4:2017

BS ISO/IEC 29794-4:2017

$198.66

Information technology. Biometric sample quality – Finger image data

Published By Publication Date Number of Pages
BSI 2017 56
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document establishes

  • terms and definitions for quantifying finger image quality,

  • methods used to quantify the quality of finger images, and

  • standardized encoding of finger image quality,

for finger images at 196,85 px/cm spatial sampling rate scanned or captured using optical sensors with capture dimension (width, height) of at least 1,27 cm × 1,651 cm.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
8 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
9 4 Conformance
5 Finger image quality metrics
5.1 Overview
5.1.1 General
10 5.1.2 Constituent of local quality metrics
5.1.3 Constituent of global quality metrics
5.1.4 Image preprocessing
12 5.1.5 Image examples
5.2 Normative contributive quality metrics
5.2.1 General
5.2.2 Orientation certainty level
14 5.2.3 Local clarity score
18 5.2.4 Frequency domain analysis (FDA) score
20 5.2.5 Ridge valley uniformity
21 5.2.6 Orientation flow
22 5.2.7 MU
5.2.8 MMB
23 5.2.9 Minutiae count in finger image
5.2.10 Minutiae count in center of mass region
5.2.11 Minutiae quality based on local image mean
24 5.2.12 Minutiae quality based on local orientation certainty level
5.2.13 Region of interest image mean
26 5.2.14 Region of interest orientation map coherence sum
27 5.2.15 Region of interest relative orientation map coherence sum
5.2.16 Quality feature vector composition
30 5.3 Non-normative quality metrics
5.3.1 General
5.3.2 Radial power spectrum
32 5.3.3 Gabor quality score
34 5.4 Unified quality score
5.4.1 Methodology for combining quality metrics
5.4.2 Training method
35 6 Finger image quality data record
6.1 Binary encoding
36 6.2 XML encoding
37 6.3 Quality algorithm identifiers
39 Annex A (normative) Conformance test assertions
51 Annex B (informative) Factors influencing fingerprint image character
53 Annex C (informative) Area consideration
54 Bibliography

Related products

BS ISO/IEC 29794-4:2017
$198.66