Research of Image Processing Technology in Vehicle License Plate Recognition System


Article Preview

Vehicle License plate recognition system includes license plate location, character segmentation, character recognition three important aspects. Image Processing is the VLPRS is one of the three key technologies, this gray-scale transformation of the image, contrast enhancement, image smoothing, edge detection, binarization and other methods were discussed and studied through the Image Processing technology to improve image Quality, strengthen the image area. Experimental results show that this treatment method is simple, real time, dealing with the right rate to achieve a practical standard.



Edited by:

Helen Zhang and David Jin






L. Xu et al., "Research of Image Processing Technology in Vehicle License Plate Recognition System", Applied Mechanics and Materials, Vols. 63-64, pp. 134-137, 2011

Online since:

June 2011




[1] Ching Y T. Detecting Line Segments in an Image—A New Implementationfor Hough Transform[J]. Pattern Recognition Letters, 2000, 22(3): 421-429.

DOI: 10.1016/s0167-8655(00)00130-6

[2] Zhang Yungang, Zhang Changshui. Using Hough Transform and prior knowledge of the license plate character extraction method [J]. Computers, 2004, 27 (1): 130-135.

[3] Wu Dehui, Zhu Chenghui. the main direction detection based on license plate character image distortion correction method [J]. Pattern Recognition and simulation technology, 2005, 24 (4): 16-22.

[4] Wu Chuansun, Zou Deyang, Zhou Dingkang. Binarization Algorithm for License Plate Recognition [J]. Computer and Modernization, 2003. 6: 13-16.

[5] Yan Jianguo, Gao Liang, Lu Jingchao. Image Processing in license plate recognition [J]. Electronic Technique, 2000 (1): 17-18.

In order to see related information, you need to Login.