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1. 发明授权

US08339401B2 Curved surface importing device and method 失效
标题翻译：曲面导入装置及方法
公开(公告)号：US08339401B2
公开(公告)日：2012-12-25
申请号：US12846808
申请日：2010-07-29
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Jin-Bo Hu , Xiao-Chao Sun , Min Wang
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Jin-Bo Hu , Xiao-Chao Sun , Min Wang
IPC分类号： G06T11/20 , G06T17/00
CPC分类号： G06T11/203 , G06T17/20
摘要： A curved surface importing device and method imports character strings of graphic parameters and graphic attributes of graphs from an initial graphic exchange specification (IGES) document, and analyzes the character strings of each of the graphs to generate a graphic model. The curved surface importing device converts the graphic model to a plurality of free-form curves and a free-form curved surface, connects each of the free-form curves to generate a closed boundary curve, and cuts out a contour surface from the free-form curved surface according to the closed boundary curve. The curved surface importing device further meshes the contour surface using a plurality of triangles, and determines an approximate poly-line of a boundary of the contour surface. The plurality of triangles and the approximate poly-line of a boundary of the contour surface are displayed on a display screen.
摘要翻译：曲面导入装置和方法从初始图形交换规范（IGES）文档导入图形参数和图形属性的字符串，并分析每个图形的字符串以生成图形模型。曲面导入装置将图形模型转换为多个自由曲线和自由曲面，连接每个自由曲线以产生闭合边界曲线，并从自由曲线曲线切出轮廓曲面，根据封闭边界曲线形成曲面。曲面导入装置还使用多个三角形进一步啮合轮廓表面，并且确定轮廓表面的边界的近似多线。轮廓表面的边界的多个三角形和近似多线显示在显示屏上。

2. 发明授权

US08072450B2 System and method for measuring a three-dimensional object 有权
标题翻译：用于测量三维物体的系统和方法
公开(公告)号：US08072450B2
公开(公告)日：2011-12-06
申请号：US12233543
申请日：2008-09-18
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang , Hua Huang , Xiao-Chao Sun , Shao-Qin Xie , Jin-Bo Hu
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang , Hua Huang , Xiao-Chao Sun , Shao-Qin Xie , Jin-Bo Hu
IPC分类号： G06T15/00 , G01B7/00 , G06K9/00
CPC分类号： G06T7/0004 , G06T7/521
摘要： A system for measuring a three-dimensional object is provided. The system measures differences between a 3D model of an object and a point cloud of the object, and highlights the differences on the 3D model using different colors according to difference ranges that the differences fall.
摘要翻译：提供了一种用于测量三维物体的系统。该系统测量对象的3D模型和对象的点云之间的差异，并且根据差异落差的差异范围，突出显示使用不同颜色的3D模型上的差异。

3. 发明授权

US08456470B2 Lighting environment simulation system and method 失效
标题翻译：照明环境模拟系统及方法
公开(公告)号：US08456470B2
公开(公告)日：2013-06-04
申请号：US12690259
申请日：2010-01-20
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Xiao-Chao Sun , Min Wang
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Xiao-Chao Sun , Min Wang
IPC分类号： G06T15/00
CPC分类号： G06T15/50
摘要： A lighting environment simulation system and method meshes a three-dimensional (3D) model of an object into a plurality of triangles, simulates lighting effects for the meshed 3D model, and determines an actual display color for each triangle of the meshed 3D model under the simulated lighting effects. The system and method further displays the meshed 3D model to a display device according to actual display colors and coordinates of all the triangles of the meshed 3D model.
摘要翻译：照明环境模拟系统和方法将物体的三维（3D）模型网格化成多个三角形，模拟网格3D模型的照明效果，并确定网格3D模型的每个三角形的实际显示颜色模拟照明效果。该系统和方法还根据实际显示颜色和网格3D模型的所有三角形的坐标，将网格3D模型显示给显示设备。

4. 发明授权

US07925109B2 System and method for simplifying a point cloud 有权
标题翻译：用于简化点云的系统和方法
公开(公告)号：US07925109B2
公开(公告)日：2011-04-12
申请号：US12014110
申请日：2008-01-15
申请人： Chih-Kuang Chang , Shan-Yang Fu , Xin-Yuan Wu , Xiao-Chao Sun
发明人： Chih-Kuang Chang , Shan-Yang Fu , Xin-Yuan Wu , Xiao-Chao Sun
IPC分类号： G06K9/36
CPC分类号： G01B11/2518 , G01B21/04 , G01B21/20
摘要： A method for simplifying a point cloud is provided. The method includes: (a) acquiring a point cloud; (b) establishing a topological structure for the point cloud; (c) selecting a maiden point from the point cloud as a selected point; (d) searching a plurality of points which are near to the selected point from the point cloud according to the topological structure as near points of the selected point; (e) fitting the selected point and the near points to form a paraboloid, obtaining curve equations of the paraboloid, and computing a curvature of the selected point according to the curve equations and a curvature formula; (f) repeating the steps from (c) to (e) until the curvatures of all points in the point have been computed; and (g) simplifying the point cloud according to the curvatures of the points and a preconfigured parameter. A related system is also provided.
摘要翻译：提供了一种简化点云的方法。该方法包括：（a）获取点云; （b）建立点云的拓扑结构; （c）从点云中选择一个少女点作为选择点; （d）根据所述拓扑结构将所选点附近的多个点从所述点云搜索到所述选定点的近点; （e）拟合所选点和近点以形成抛物面，获得抛物面的曲线方程，并根据曲线方程和曲率公式计算所选点的曲率; （f）重复（c）至（e）的步骤，直到计算出点中的所有点的曲率; 和（g）根据点的曲率和预配置的参数来简化点云。还提供了相关系统。

5. 发明授权

US08368714B2 Curved surface rendering system and method 失效
标题翻译：曲面渲染系统和方法
公开(公告)号：US08368714B2
公开(公告)日：2013-02-05
申请号：US12577260
申请日：2009-10-12
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Xiao-Chao Sun
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Xiao-Chao Sun
IPC分类号： G09G5/00 , G06T15/00
CPC分类号： G06T17/20
摘要： A curved surface rendering method grids a curved surface to a plurality of triangles, and further divides the plurality of triangles to sub-triangles. Furthermore, the method determines surface triangles and inner triangles from all triangles of the curved surface, and displays the surface triangles on a display device.
摘要翻译：弯曲表面渲染方法将曲面网格化为多个三角形，并且进一步将多个三角形划分为子三角形。此外，该方法从曲面的所有三角形确定表面三角形和内三角形，并在显示设备上显示表面三角形。

6. 发明授权

US09002688B2 System and method for simulating measuring process of workpiece 有权
标题翻译：用于模拟工件测量过程的系统和方法
公开(公告)号：US09002688B2
公开(公告)日：2015-04-07
申请号：US13316489
申请日：2011-12-10
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
IPC分类号： G06F17/50 , G01B21/04 , G05B19/401
CPC分类号： G06F17/5009 , G01B21/047 , G05B2219/35346 , Y02P90/265
摘要： In a method for simulating a measuring process of a workpiece, one or more virtual probes of a workpiece measuring machine are created. A vector of each of the virtual probes is calculated, and an appropriate vector for each of measuring points of a workpiece is acquired for a computerized drawing of the workpiece. The angle between the vector of each of the measuring points and the vector of each of the virtual probes is calculated. A virtual probe is determined for each measuring point according to the calculated angles. The measuring points are sorted according to the virtual probe of each measuring point, and the measuring programs of the sorted measuring points that relate to the same virtual probe are combined. The combined measuring programs are executed to determine whether the actual probe would collide with the workpiece.
摘要翻译：在用于模拟工件的测量过程的方法中，产生工件测量机的一个或多个虚拟探针。计算每个虚拟探针的矢量，并且为工件的计算机绘图获取工件的每个测量点的适当矢量。计算每个测量点的矢量与每个虚拟探针的矢量之间的角度。根据计算的角度为每个测量点确定虚拟探针。测量点根据每个测量点的虚拟探头进行分类，并且组合与相同虚拟探针相关的排序测量点的测量程序。执行组合的测量程序以确定实际探头是否与工件碰撞。

7. 发明授权

US08203576B2 Method for aligning objects 有权
标题翻译：对齐对象的方法
公开(公告)号：US08203576B2
公开(公告)日：2012-06-19
申请号：US12338963
申请日：2008-12-18
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Shao-Qin Xie , Min Wang , Hua Huang
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Shao-Qin Xie , Min Wang , Hua Huang
IPC分类号： G06K9/32
CPC分类号： G06F17/50 , G06K9/32 , G06T7/33 , G06T2200/04 , G06T2207/10028
摘要： A computer implemented method for aligning objects receives a reference object and a to-be-moved object; determining feature elements of the reference object. A first coordinate system is constructed according to a plurality of feature elements of the reference object. A second coordinate system is constructed according to a plurality of feature elements of the to-be-moved object. A third coordinate system is constructed according to the first coordinate system and the second coordinate system. An operation matrix is computed according to the three coordinate systems. The two objects are aligned using the operation matrix.
摘要翻译：用于对准对象的计算机实现的方法接收参考对象和待移动对象; 确定参考对象的特征元素。根据参考对象的多个特征元素构建第一坐标系。根据待移动物体的多个要素构成第二坐标系。第三坐标系根据第一坐标系和第二坐标系构成。根据三坐标系计算运算矩阵。使用操作矩阵对两个对象进行对齐。

8. 发明授权

US09030473B2 Computing device and method for determining distance between two curved surfaces 有权
标题翻译：用于确定两个曲面之间的距离的计算装置和方法
公开(公告)号：US09030473B2
公开(公告)日：2015-05-12
申请号：US13480481
申请日：2012-05-25
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
IPC分类号： G06T17/20 , G06T7/00 , G06F17/20 , G01B5/14 , G06F17/50
CPC分类号： G01B5/14 , G06F17/20 , G06F17/50 , G06T7/001 , G06T17/20 , G06T2207/30164
摘要： A computing device reads information in relation to a first curved surface and a second curved surface from a storage device, respectively meshes the first and second curved surfaces into a plurality of first and second triangles, and divides a parametric plane associated into a plurality of first grids, where each first grid corresponds to a small box in 3D space. The device determines associations between the first/second triangles of the two curved surfaces and the small boxes in the 3D space, determines a second triangle that is nearest to each first triangle of the first curved surface, and determines a distance between the first triangle and the second triangle as a minimum distance from the first triangle to the second curved surface. A minimum value from all of the minimum distances is determined as a minimum distance between the first curved surface and the second curved surface.
摘要翻译：计算设备从存储设备读取关于第一弯曲表面和第二弯曲表面的信息，分别将第一和第二曲面形成多个第一和第二三角形，并将与多个第一和第二三角形相关联的参数平面分割网格，其中每个第一个网格对应于3D空间中的一个小框。设备确定两个曲面的第一/第二三角形和3D空间中的小框之间的关联，确定最靠近第一曲面的每个第一三角形的第二个三角形，并确定第一个三角形和第二个三角形作为从第一个三角形到第二个曲面的最小距离。将所有最小距离的最小值确定为第一曲面和第二曲面之间的最小距离。

9. 发明授权

US08265898B2 System and method for verifying a probe tip 失效
标题翻译：用于验证探头尖端的系统和方法
公开(公告)号：US08265898B2
公开(公告)日：2012-09-11
申请号：US12862779
申请日：2010-08-25
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
IPC分类号： G01B5/008
CPC分类号： G01B21/042 , G01B5/008
摘要： A computing system and method verifies a probe tip of a coordinate measuring machine. The computing system simulates a virtual sphere and calculates coordinates of the center of the virtual sphere. The coordinates of first real contact points of the real sphere is obtained to calculate coordinates of the center of the real sphere and coordinates of the ideal contact points of the real sphere. The computing system obtains coordinates of second real contact points of the real sphere is obtained according to the coordinates of the ideal contact points of the real sphere. The radius of the probe tip is calculated according to the coordinates of second real contact points of the real sphere. The computing system determines if the calculated radius of the probe tip falls in an allowable range.
摘要翻译：计算系统和方法验证坐标测量机的探针尖端。计算系统模拟虚拟球体并计算虚拟球体中心的坐标。获得实球第一实际接触点的坐标，以计算实球中心的坐标和实球理想接触点的坐标。根据实际的理想接触点的坐标，得到计算系统获得的实球第二实际接触点的坐标。根据实球的第二实际接触点的坐标来计算探头尖端的半径。计算系统确定计算出的探针尖端的半径是否在允许范围内。

10. 发明授权

US08249392B2 Method for aligning point clouds 失效
标题翻译：对齐点云的方法
公开(公告)号：US08249392B2
公开(公告)日：2012-08-21
申请号：US12178645
申请日：2008-07-24
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang
IPC分类号： G06K9/64 , G06T7/00
CPC分类号： G06K9/6211 , G06T7/30 , G06T2200/04 , G06T2207/10028
摘要： A method for aligning point clouds is disclosed. The method includes inputting point cloud data of a reference object and a to-be-measured object, and confirming an original position of point cloud of the to-be-measured object. The method further includes determining a virtual position of point cloud of the to-be-measured object at each iteration, determining a minimum distance between point cloud of the reference object and point cloud of the to-be-measured object, and determining coordinates of each point in point cloud of the to-be-measured object corresponding to the minimum distance. The method further includes moving each point in point cloud of the to-be-measured object.
摘要翻译：公开了一种用于对齐点云的方法。该方法包括输入参考对象和被测对象的点云数据，并确认被测对象的点云的原始位置。该方法还包括在每次迭代中确定被测量对象的点云的虚拟位置，确定参考对象的点云与待测物体的点云之间的最小距离，以及确定待测物体的坐标被测物体的点云中的每个点对应于最小距离。该方法还包括移动待测物体的点云中的每个点。

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