工业CT切片图像直接生成快速原型层片数据  

Direct generation of rapid prototyping slice data from industrial CT images

作　　者：段黎明[1] 许万源[1,2] 

机构地区：[1]重庆大学ICT研究中心,重庆400044 [2]重庆大学机械工程学院,重庆400044

出　　处：《强激光与粒子束》2010年第11期2733-2736,共4页High Power Laser and Particle Beams

基　　金：重庆市科技攻关项目(CSTC2009AC3047)

摘　　要：为了将工业CT与快速原型直接集成,提出了一种由工业CT切片图像直接生成快速原型层片数据的方法。首先对工业CT切片图像进行边缘提取、去噪、细化、连接和轮廓跟踪,获取样件的内外结构轮廓点数据;然后在相邻断层间建立轮廓匹配点对,线性插值层间轮廓数据,以满足快速原型加工对层片厚度的要求,并用三次B样条曲线对所有轮廓进行拟合;最后经过轮廓数据点采样和内外轮廓判断后,生成通用层接口文件输入快速原型系统。试验验证了该方法的有效性与正确性。To integrate industrial computed tomography（CT） technology with rapid prototyping（RP） directly,a new method creating an RP slice file directly from industrial CT slicing images is presented.Firstly,through edge extraction and contour de-noising,connecting,thinning and tracing,the basic contour point data of the interior and exterior structure of a sample piece are obtained.Subsequently,matching point pairs between adjacent layers are established,interlayer contours are got by linear interpolation,and then all contours are fitted by cubic B-spline curves.Finally,a CLI file is created after contour point sampling and interior and exterior contour recognizing.The CLI file is then input into an RP system and a product is manufactured.Applications of the method prove that it is effective and feasible.

关 键 词：工业CT 快速原型 图像处理 层间轮廓插值 轮廓拟合 

分 类 号：TP751.1[自动化与计算机技术—检测技术与自动化装置]