本文研究了逆向工程的关键技术之一——自由曲面的三维测量技术。
D measurement of free surface, one of key technology of Reverse Engineering, is described in this paper.
介绍了一种工作于三坐标测量机(CMM)上的线结构光三维视觉测头，实现自由曲面的快速检测。
For measuring free form surface, a line structured light based 3d vision probe which works on CMM is proposed.
摘要 ：为了实现大型自由曲面的三维面型测量，提出了采用光学定位跟踪技术的数据拼接方法。
Abstract : In order to realize 3D shape acquisition for large free surface, a data registration method using optical location tracking technology was proposed.
探讨了三维散乱数据点的自由曲面自组织重构方法。
The approach to the freeform surface self-organizing reconstruction for the dense 3d scattered data was discussed.
采用线结构光和单ccd摄像机构成自由曲面三维测量系统。
The 3-d measurement system of free-form surface is made up with single CCD video cameral by employing line-structured laser.
以生产准备中磨叶片工具的计算为例，使用三维CAD系统的自由曲面建模技术，精确计算出叶片工具设计中所需叶片通道数据。
In computation on blade grounding tool design in technical preparation, accurate blade passage data necessary for tool design has been obtained using free camber modeling technique of 3d CAD.
自由曲面的三维重构技术在制造工业、艺术设计及医疗整形等领域具有广泛的应用价值。
The three-dimension reconstruction technique of free-form surfaces has been widely used in many fields such as manufacturing industry, art design, medical treatment and plastic surgery.
针对三维数据点重构自由曲面的光顺问题，探讨了一种基于形状约束的曲面重构技术。
On the base of the fairing of free-form surface reconstruction from 3d data points, this paper probes one method based on shape constraints.
自由曲面三维重构技术在反求工程、虚拟现实等领域具有广泛的应用价值。
The 3D reconstruction of free-form surfaces has been widely used in the fields of reverse engineering and virtual reality.
基于流线型的列车头部外形由三维空间自由曲面构成，提出采用NURBS曲线设计外形型线和用三维nurbs曲面描述复杂三维曲面的车头外形设计方法。
The shape of streamlined train head is made of the 3-dimensional space free form surface, whose shape outline curve USES NURBS curve and complex shape surface USES 3-d NURBS surface.
实验结果表明该系统能够有效地对三维表面，特别是对无明显特征的光滑自由三维曲面进行重建。
The experimental results show that 3-D surface especially the smooth 3-D curved surface without obvious characteristics can be effectively reconstructed.
实验表明，采用编码光栅投影视觉测量能够高效准确地测量自由曲面的三维轮廓。
Using grating projection and stereo matching based on these constraints, free-form 3-D profiles can be measured efficiently and accurately.
采用了基于计算机视觉的光学非接触式测量方法，得到了自由曲面的三维几何数据。
The article describes a non-contact measuring method based on computer vision to gain 3D-geometric data.
针对复杂曲面数据测量及曲面重构的要求，以玩具狗头为例，介绍使用三维激光扫描仪的自由曲面反求过程中产品点数据的处理方法，以及CAD模型的重构技术，分析了反求建模中存在的问题。
The processing methed of data tested by laser scanner and reconstruction technology of CAD model in the reverse process of free-form surface were persented with toy of dog head as example.
针对复杂曲面数据测量及曲面重构的要求，以玩具狗头为例，介绍使用三维激光扫描仪的自由曲面反求过程中产品点数据的处理方法，以及CAD模型的重构技术，分析了反求建模中存在的问题。
The processing methed of data tested by laser scanner and reconstruction technology of CAD model in the reverse process of free-form surface were persented with toy of dog head as example.
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