The Auxiliary Light Effect Analysis in Nighttime License Plate Segmentation

摘要：

Adding auxiliary light is one of the most challenging problems in the area of character segmentation in the nighttime license plate identification. The auxiliary light effect is analyzed with comparing with image enhancement algorithm. First the nighttime license plate images are captured without auxiliary light or with adding auxiliary light in different areas near license plates. And then the original images are enhanced with contrast stretch linear transformation. Finally the original images and enhancement images are segmented with thresholding segmentation method. The experiments show that the segmentation effect of enhancement images without auxiliary light is better than the original images and enhancement images with auxiliary light. So the effect of adding auxiliary light is not better than image process algorithm in nighttime license plate segmentation because the position and illumination of auxiliary light on license plate are unstable.

关键词： Nighttime License Plate Segmentation Auxiliary Light

作者: Ma Zhaomin Huang Ling Chen Zhengqiang

作者单位: Department of Electronic Information and Control Engineering, Guangxi University of Technology, Liuzhou, Guangxi, China

会议类型: 国际会议

会议名称: 2010 International Conference on Circuit and Signal Processing(2010年电路与信号处理国际会议 ICCSP 2010)

会议地点: 上海

会议语种:英文

页码: 565-567

在线出版日期: 2010-12-25（万方平台首次上网日期，不代表论文的发表时间）