Browse Prior Art Database

RNG techniques and biometrics

IP.com Disclosure Number: IPCOM000009442D
Publication Date: 2002-Aug-23

Publishing Venue

The IP.com Prior Art Database

Related People

Aled Jones: INVENTOR [+2]

Related Documents

PCT/GB02/00626: PATENT

Abstract

This document describes detailed examples of how the mechanisms of repeatable number generation are implemented in practice and how this implementation can be applied to a number of hypothetical contexts that bear resemblence to conventional biometrics.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 2% of the total text.

RNG Techniques and Biometrics

Scientific Generics

23 August 2002

Gavan Duffy

Scientific Generics Limited

Harston Mill

Harston

Cambridge CB2 5GG

A Generics Group company

 

CONTENTS

1             Introduction        .............................................................................................. 1

1.1             Abstract        ................................................................................................... 1

1.2             References        ............................................................................................. 1

1.3             Purpose of document............................................................................. 1

2             Frame-based Biometric Numbers (FBN)        ............................................. 2

2.1             Overview        ................................................................................................. 2

2.2             Background on frames........................................................................... 2

2.3             Biometric frames.................................................................................... 3

2.4             Generic structure of an ARV        ................................................................... 3

2.5             Generic operations of biometric frames and associated ARVs        ............. 5

2.6             Example specialisation of ARV for image bar-coding        ............................ 5

2.7             Example specialisation of ARV for pre-located feature bar-coding        ........ 7

2.8             Example specialisation of ARV for retina biometrics        .............................. 7

2.9             Hybrid nature of Biometric Frames and the ARV        ................................... 8

2.10           Algorithm for translation of encoding to an FBN – simple method        ......... 9

2.11           Summary of relationship between ARV, enrolment and verification        .... 12

3             Repeatable Number Generation – issues        ..................................... 14

4             Repeatable number Generation – How can it work.        ............... 21

4.1             Overview        ............................................................................................... 21

4.2             Selection and parameterisation of encoding strategy – strategy vector         22

4.3             Ensuring consistency of referencing – alignment vector        ..................... 26

4.4             Ensuring consistency of structure – exclusion vector        .......................... 26

4.5             Ensuring consistency of structure – field of view vector        ...................... 27

4.6             Ensuring consistency of structure – sequence vector        ......................... 27

4.7             Ensuring consistency of structure – category resolution vector        .......... 28

4.8             Ensuring consistency of structure – constraints vector        ....................... 29

4.9             Ensuring consistency of units – scaling vector        .................................... 30

4.10           Ensuring best case digital boundary effect– offset vector        .................... 31

4.11           Configuring rep...