基于Radon变换的电气连接器图像倾斜校正  

Image Tilt Correction of Electrical Connector Based on Radon Transform

作　　者：冯新颖 范佳佳 吕晶 薛娟 FENG Xin-ying FAN Jia-jia LYU Jing XUE Juan(Nanjing Zhongche Puzhen Rolling Stock Ltd., Nanjing210000, China Nanjing Puzhen Science and Technology Industrial Co., Ltd., Nanjing210000, China)

机构地区：[1]南京中车浦镇城轨车辆有限责任公司,江苏南京210000 [2]南京浦镇科技实业有限公司,江苏南京210000

出　　处：《机电工程技术》2017年第2期29-31,82,共4页Mechanical & Electrical Engineering Technology

摘　　要：电气连接器在拍摄的过程中不可避免会产生图像倾斜现象,倾斜的图像不利于图像特征分割,为解决图像倾斜问题,提出基于Radon变换的图像倾斜校正方法。该方法先利用边缘检测中的Sobel边缘检测算子检测图像边缘,再利用Radon变换检测倾斜图像的倾斜角,最后根据检测到的倾斜角利用双线性插值对图像进行旋转,最终完成倾斜图像的校正。经试验验证该算法处理速度快、适应性好,对噪声与污染不敏感。Electrical connector in the process of shooting will inevitably produce image tilt,the inclined image is not conducive to image feature segmentation,image tilt correction method based on Radon transform is proposed to solve the problem of image tilt. Firstly,edge detection operator is used to detect the edge of image by Sobel edge detection operator. Secondly,Radon transform is used to detect the tilt angle of edge image. Finally, the bilinear interpolation method is used to rotate the image. The experimental results show that the algorithm is fast and adaptive,and it is not sensitive to noise and pollution.

关 键 词：电气连接器 倾斜校正 SOBEL算子 RADON变换 双线性插值 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]