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1. 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。

2. 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。

3. 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。

4. 发明授权

US08248408B2 Method for uniformizing surface normals of a three-dimensional model 失效
标题翻译：使三维模型的表面法线均匀化的方法
公开(公告)号：US08248408B2
公开(公告)日：2012-08-21
申请号：US12274356
申请日：2008-11-20
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： G06T17/00 , G06T15/10 , G06T15/20 , G09G5/00
CPC分类号： G06T19/00
摘要： A method for uniformizing surface normals of a three-dimensional model is provided. The method uniformizes the surface normals to surfaces in the three-dimensional model by determining intersection surfaces of each of the surfaces, and determining surfaces whose surface normals are to be reversed according to the intersection surfaces of each of the surfaces. The method may make surface normals consistent.
摘要翻译：提供了一种使三维模型的表面法线均匀化的方法。该方法通过确定每个表面的交叉表面来确定三维模型中的表面的表面法线，并根据每个表面的交叉表面确定表面法线将被颠倒的表面。该方法可以使表面法线一致。

5. 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。

6. 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。

7. 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。

8. 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。

9. 发明授权

US08749551B2 System and method for constructing triangular mesh surface of point cloud 失效
标题翻译：点云三角形网格表面的系统和方法
公开(公告)号：US08749551B2
公开(公告)日：2014-06-10
申请号：US12882152
申请日：2010-09-14
申请人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang , Wen-Duan Hu
发明人： Chih-Kuang Chang , Xin-Yuan Wu , Min Wang , Wen-Duan Hu
IPC分类号： G06T17/20
CPC分类号： G06T17/20
摘要： A method for constructing a triangular mesh surface of a point cloud includes constructing triangles according to point cloud data, determining seed triangles from the constructed triangles. The method further includes selecting triangles that share a side with a determined seed triangle from the constructed triangle, determining a specific triangle having the biggest dihedral angle with the determined seed triangle and the biggest angle opposing the shared side of the determined seed triangle. The method also includes repairing holes formed by the specific triangles if the all specific triangles have been determined, adjusting a normal vector of each specific triangle, and outputting a triangular mesh surface constructed by the adjusted triangle.
摘要翻译：用于构造点云的三角形网格表面的方法包括根据点云数据构建三角形，从构造的三角形确定种子三角形。该方法还包括从构成的三角形中选择与确定的种子三角形共享一侧的三角形，确定与所确定的种子三角形具有最大二面角的特定三角形以及与所确定的种子三角形的共享侧相对的最大角度。该方法还包括修复由特定三角形形成的孔，如果确定了所有特定三角形，调整每个特定三角形的法向矢量，并输出由调整后的三角形构成的三角形网格表面。

10. 发明授权

US08300920B2 System and method for measuring form and position tolerances of an object 失效
标题翻译：用于测量物体的形状和位置公差的系统和方法
公开(公告)号：US08300920B2
公开(公告)日：2012-10-30
申请号：US12564730
申请日：2009-09-22
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： G06K9/00
CPC分类号： G01B11/24 , G06T7/60 , G06T17/00 , G06T2207/10028
摘要： A method for measuring form and position tolerances of an object receives a preselected feature element to be fitted from an image of a measured object, obtains a reference feature element from an image of a reference object corresponding to the measured object. The method further fits a feature element corresponding to the preselected feature element so as to obtain a fitted feature element, and calculates form and position tolerances between the fitted feature element and the reference feature element thereby generating the form and position tolerances of the measured object.
摘要翻译：用于测量物体的形状和位置公差的方法从测量对象的图像接收要拟合的预选特征元素，从与测量对象相对应的参考对象的图像中获得参考特征元素。该方法进一步适合于与预选特征元素相对应的特征元素，以获得拟合特征元素，并且计算拟合特征元素与参考特征元素之间的形状和位置公差，从而生成被测物体的形状和位置公差。

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