A License Plate Locating Method Based on Tophat-bothat Changing and Line Scanning

摘要：

The automatic license plate recognition is an important technique to obtain traffic information, it mixes computer vision, image processing techniques and pattern recognition techniques, it is an important technique in intelligent traffic system. In a vehicle license plate recognition system, plate region detection is the key step before the final recognition. This article introduces the whole process of plate region detection. Top- hat and bot- hat transformation are used for enhancing the image contrast in this paper, and wavelet threshold method is used as image filter, and a improved line scanning is used for plate region detection at last. This method has strong practicability. The experimental results demonstrate that the method introduced in this paper is effective.

作者: P G Hou J Zhao M Liu

作者单位: Electrical Engineering Institute of Yanshan University, QinHuangdao, Hebei,China

会议类型: 国际会议

会议名称: 第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)

会议地点: 哈尔滨

会议语种:英文

页码: 431-436

在线出版日期: 2006-08-08（万方平台首次上网日期，不代表论文的发表时间）