University of Hertfordshire

By the same authors

Implications of the Method of Construction of UK Number Plates for Infrared Reflectance and Camera Settings on ANPR System

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Original languageEnglish
Title of host publication2019 International Carnahan Conference on Security Technology (ICCST), CHENNAI, India, 2019
Number of pages5
ISBN (Electronic)9781728115764
ISBN (Print)978-1-7281-1575-7
Publication statusPublished - 1 Oct 2019

Publication series

NameProceedings - International Carnahan Conference on Security Technology
ISSN (Print)1071-6572


This paper considers the implications of two aspects of number plates firstly the varied manufacturing process in the physical construction of vehicle number plates that might affect the reflectance characteristics and secondly the ANPR camera settings that affect the night time capture performance. These parameters have an effect on the overall performance of an Automatic Number Plate Recognition system. A set of controlled experiments on number plates is carried out to establish variation in the retroreflective response to illumination as well as field analysis on real world number plates.


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