基于双目识别技术的铝合金轮毂尺寸测量算法研究  

Research on the size measurement algorithm of aluminum alloy wheel based on binocular recognition technology

作　　者：赵欢 杨莎[1] 周正[1] 杜丽峰[1] 王天琪[2] ZHAO Huan;YANG Sha;ZHOU Zheng;DU Lifeng;WANG Tianqi(Tianjin Tianduan Hydraulic Press Co.,Ltd.,Tianjin 300142,China;School of Mechanical Engineering,Tiangong University,Tianjin 300142,China)

机构地区：[1]天津市天锻压力机有限公司,天津300142 [2]天津工业大学机械工程学院,天津300142

出　　处：《锻压装备与制造技术》2024年第4期82-87,共6页China Metalforming Equipment & Manufacturing Technology

摘　　要：针对双目识别技术以铝合金轮毂工件作为研究对象,利用MATLAB设计测量程序,并完成对铝合金轮毂工件的尺寸测量。首先,利用张正友标定法快速准确得出标定系数;然后,对轮毂图像进行直方图均衡化、中值滤波、自动阈值分割、Canny边缘检测、开运算等图像预处理,并对图像进行畸变校正和极线校正;最后,完成立体匹配得到其三维坐标,进行拟合计算处理得到轮毂尺寸,精度满足需求。For the binocular recognition technology,the aluminum alloy wheel workpiece was used as the research object,and the measurement program was designed by MATLAB,and the dimensional measurement of the aluminum alloy wheel workpiece was completed.Firstly,the calibration coefficient is obtained quickly and accurately by Zhang Zhengyou calibration method,and then,the histogram equalization,median filtering,automatic threshold segmentation,Canny edge detection,open operation and other image preprocessing are carried out on the hub image,and the distortion correction and polar line correction are performed on the image.Finally,the three-dimensional coordinates are obtained by completing the stereo matching,and the dimensions of the hub are obtained by fitting calculation.

关 键 词：双目视觉 图像预处理 图像校正 双目标定 立体匹配 

分 类 号：TG316.193[金属学及工艺—金属压力加工] TP391.41[自动化与计算机技术—计算机应用技术]