标题：A Gabor Filter Based Image Acquisition Method for Raised Characters
作者：Li, Xueyong; Lu, Changhou
作者机构：[Li, Xueyong] Shandong Univ, Sch Mech Engn, Jinan, Peoples R China.; Shandong Univ, Minist Educ, Key Lab High Efficiency & Clean Mech Mfg, Jinan, Pe 更多
会议名称：International Conference on Mechatronics, Robotics and Automation (ICMRA 2013)
会议日期：JUN 13-14, 2013
来源：MECHATRONICS, ROBOTICS AND AUTOMATION, PTS 1-3
关键词：Raised character; Image acquisition; Gabor filter
摘要：This paper presents a novel image acquisition technology for raised characters. First, laser stripes modulated with height information of raised character are captured using the 3D vision technique; then, laser stripes are combined into a grating image, in which are complete character images with grating background; Finally, a rational design Gabor kernel is applied to filter the grating image. Through this way, the background was removed and the grayscale images of the raised characters are reserved. Experiments show that the proposed method can get the well-separated character images. Also, it is more simple and efficient than the existing methods.