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
赵欢 1杨莎 1周正 1杜丽峰 1王天琪2
作者信息
- 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
- 折叠
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.
Abstract
For the binocular recognition technology,the aluminum alloy wheel workpiece was used as the re-search 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,auto-matic 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. Fi-nally,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Key words
Binocular vision/Image preprocessing/Image correction/Dual targeting/Stereo matching引用本文复制引用
出版年
2024
NETL
NSTL
万方数据