Paper Title:
Anti-Alteration Technology for License Plate Recognition System
  Abstract

In order to realize anti-alteration function for License Plate Recognition System (LPRS), a uniform-field imaging system is designed and a corresponding anti-alteration algorithm is proposed. First, reflection characteristics of license plate and typical alteration material are measured. As a result, the two characteristics in near-infrared range fluctuate moderately and the former is notably lower than the latter. Then the uniform-field imaging system for visible-light and near-infrared is designed to capture the difference above effectively. Finally, the anti-alteration algorithm, composed of license plate location, character matching segmentation and alteration recognition, is introduced. Experimental results have indicated that visible-light and near-infrared images can be acquired stably by the proposed system under the condition of natural illumination and there are discriminable gray differences between license plate and alteration material in near-infrared images; and that success rate and average executive time of the algorithm are 86.5% and 157ms respectively.

  Info
Periodical
Advanced Materials Research (Volumes 211-212)
Edited by
Ran Chen
Pages
156-160
DOI
10.4028/www.scientific.net/AMR.211-212.156
Citation
X. Yang, Y. S. Ling, X. L. Hao, H. Yang, P. Ma, "Anti-Alteration Technology for License Plate Recognition System", Advanced Materials Research, Vols. 211-212, pp. 156-160, 2011
Online since
February 2011
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Price
$32.00
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