计算机视觉技术在零件尺寸测量中的应用_王晓翠.pdf

计算机视觉技术在零件尺寸测量中的应用 1 1 2 王晓翠, 王艳秋 , 麻恒阔 ( 1. 北京航空精密机械研究所, 北京 100076; 2. ABB 电气传动系统有限公司, 北京 100015) : 介绍了一种应用计算机视觉技术检测机械零件参数的测量方法以面阵CCD 为图像 感 器, 通过图像采集卡将机械零件的二维图像输入到计算机中在对原始输入图像进行直方图校正和边缘 保持滤波处理后, 对得到的较为平滑的零件图像进行边缘检测利用图像边缘灰度突变的特性, 提出了 一种结合梯度算子的快速边缘检测方法并据此计算出零件的各参数值此种测量方法非常适合于微 小易形变等接触测量难以准确测量的机械零件的参数检测, 具有广阔的应用前景 : 直方图校正; 边缘保持滤波; 边缘检测 : T P 391. 41 : A Application of Measurement of Mechanical Accessory Size based on Computer Vision Technology 1 1 2 WANG Xiaocui , WANG Ya qiu , MA H e gkuo ( 1. Beiji g Precisio E gi eeri g I stitut e for Aircraft I dustry, Beiji g 100076, Chi a; 2. ABB Beiji g Drive Systems Co. , Ltd, Beiji g 100015, Chi a) Abstract:The accessory parameter measureme t met hod w as prese ted based o computer visio tech ology. By taki g CCD as image se sor, the accessory image is put i to the computer via image collectio card. The edge detectio of smoot her accessory image attai ed after histogram adjusti g the origi al image a d holdi g edge filter . Co sideri g the sudde cha ge of the gray scale of the image edge, a rapid edge- detectio tech ique is prese ted which uses gradie t operator, a d the worked out t he accessory parameters. This method is propitious to measure mecha ical accessory accurately , such as mi- ute ess, more deformable that u fit for ta ge cy measureme t, a d has a w ide applicatio foregrou d. Key words:Histogram adjusti g, Edge keepi g filter, Edge detectio , , , , , CCD , ( ) 1 1 2