车身工程图精确矢量化圆的自适应算法  

Precision Vectorization Algorithm for Circle Based on Auto-Body Engineering Drawings

作　　者：董洪智[1] 李玉璇[1] 林忠钦[1] 陈关龙[1] 

机构地区：[1]上海交通大学机械工程学院,上海200030

出　　处：《上海交通大学学报》2000年第10期1453-1456,共4页Journal of Shanghai Jiaotong University

摘　　要：在车身薄膜图扫描图像细化的基础上 ,提出了一种自适应精确矢量化圆的算法 .讨论了在选取任意初始点后 ,根据初始点的坐标 ,适当调整其余两个点的位置 ,以使这三点尽量反映圆的特征 ,从而精确获得圆的特征参数 .给出了以不同半径的标准圆进行测试的结果和以桑塔纳轿车前纵梁加强板为例进行的工业应用 .结果表明 ,该算法是稳定、准确的 .On the basis of thinning the auto- body film engineering drawings,a self adaptive precision vec- torization algorithm for circles on the auto- body engineering drawings was presented.After the discre- tionary initial pointbeing selected,according to its position,the other two points are adjusted properly so that the three points can show the characteristics of a circle as far as possible,thereby the characteristic parameters of the circle are obtained.The testresults from the standard circles with differentradii and the industrious application of the stiffening plate of Santana's front longeron were presented.The tests and practice indicate thatthe algorithm is stable and accurate.

关 键 词：薄膜工程图 精确矢量化 轿车 车身 自适应算法 

分 类 号：U463.821[机械工程—车辆工程]