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公开(公告)号：US20160071327A1
公开(公告)日：2016-03-10
申请号：US14609610
申请日：2015-01-30
发明人： XIN-YUAN WU , PENG XIE , LU YANG , CHIH-KUANG CHANG
CPC分类号： G06T5/002 , G06T17/205 , G06T2210/56
摘要： A method for simplifying a mesh point cloud includes following steps: obtaining a point cloud and meshing the point cloud so that the point cloud is formed with a plurality of triangular grids; calculating a distance between a vertex of the triangular grid and its corresponding normal plane to determine an influence of the vertex to a geometric characteristic of the mesh point cloud; deleting the vertexes and the grids in connection therewith in accordance with a predetermined degree of simplification, wherein the deleted vertexes are those which have less influence to the geometric characteristic of the mesh point cloud; creating triangular grids to fill the void part in accordance with Delaunay triangulation; and smoothening the created grids.
摘要翻译： 一种简化网格点云的方法包括以下步骤：获得点云并对点云进行网格划分，使点云形成多个三角形网格; 计算三角形网格的顶点与其对应的法线平面之间的距离，以确定顶点对网格点云的几何特征的影响; 根据预定的简化程度来删除与其相关联的顶点和栅格，其中删除的顶点是对网格点云的几何特性影响较小的顶点; 根据Delaunay三角测量法创建三角形网格以填补空白部分; 并平滑所创建的网格。
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公开(公告)号：US20160171761A1
公开(公告)日：2016-06-16
申请号：US14726793
申请日：2015-06-01
发明人： XIN-YUAN WU , PENG XIE , HENG ZHANG , CHIH-KUANG CHANG
IPC分类号： G06T17/20
CPC分类号： G06T17/20
摘要： A computing device and a method for patching point clouds of an object are provided. A point cloud of the object is acquired from a storage device of the computing device, and the point cloud is triangulated using several triangles. The method identifies a void in the point cloud to be patched, and obtains one or more triangles according to one or more included angles of neighboring sides of the void of the point cloud. The void of the point cloud is filled with the one or more obtained triangles. The filled triangles are adjusted according to normal vectors of the filled triangles, and the point cloud is rendered on the display screen.
摘要翻译： 提供了一种用于修补对象的点云的计算设备和方法。 从计算设备的存储设备获取对象的点云，并使用几个三角形对点云进行三角测量。 该方法识别要修补的点云中的空白，并且根据点云的空隙的相邻边的一个或多个包含角度获得一个或多个三角形。 点云的空白被一个或多个获得的三角形填充。 填充三角形根据填充三角形的法向向量进行调整，点云显示在显示屏上。
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公开(公告)号：US20160163102A1
公开(公告)日：2016-06-09
申请号：US14689754
申请日：2015-04-17
发明人： CHIH-KUANG CHANG , XIN-YUAN WU , ZHE-RUI WEI , PENG XIE
CPC分类号： G06K9/6211 , G06T17/00 , G06T2210/12 , G06T2210/56
摘要： A computing device and a method of processing point clouds of an object. Two groups of point clouds are selected as a first and a second group of point clouds. Redundant points in the first and second groups of point clouds are determined and marked using a first indicator. Normal points are determined in the second group of point clouds and marked using a second indicator. The method further uses a plurality of cubes for dividing the redundant points marked with the first indicator, and clears a first indicator of a specified redundant point in each of cubes which has a minimum distance to a centre point of the each of cubes. The method merges points which have not been marked with the first indicators in the first and second groups of point clouds to be a new group of point clouds.
摘要翻译： 一种处理物体的点云的计算设备和方法。 两组点云被选为第一组和第二组点云。 确定第一和第二组点云中的冗余点，并使用第一个指示符进行标记。 在第二组点云中确定正常点，并使用第二个指示符进行标记。 该方法还使用多个立方体来分割用第一指示符标记的冗余点，并且清除每个立方体中具有至少每个立方体的中心点的最小距离的指定冗余点的第一指示符。 该方法将未被标记为第一和第二组点云中的第一个指标的点合并为一组新的点云。
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公开(公告)号：US20160117856A1
公开(公告)日：2016-04-28
申请号：US14750252
申请日：2015-06-25
发明人： CHIH-KUANG CHANG , XIN-YUAN WU , SU-YING FU , ZONG-TAO YANG
CPC分类号： G06T15/00 , G06T2210/12
摘要： A point cloud processing method is provided. The method includes: depicting, at a computing device, a three-dimensional image based on a point cloud data set; converting, at the computing device, the three-dimensional image to a two-dimensional image; dragging, at the computing device, a brush to form a coverage are; determining, at the computing device, whether a point is within the coverage area by comparing coordinates of each point in the two-dimensional image with coordinates of area boundary of the coverage area; and painting, at the computing device, the point within the coverage area to specific color.
摘要翻译： 提供了点云处理方法。 该方法包括：在计算设备处描绘基于点云数据集的三维图像; 在计算设备处将三维图像转换为二维图像; 在计算设备上拖动一个刷子来形成覆盖; 在所述计算设备处，通过将所述二维图像中的每个点的坐标与所述覆盖区域的区域边界的坐标进行比较，来确定点是否在所述覆盖区域内; 并在计算设备上将覆盖区域内的点绘制为特定颜色。
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公开(公告)号：US20160059371A1
公开(公告)日：2016-03-03
申请号：US14559461
申请日：2014-12-03
发明人： CHIH-KUANG CHANG , XIN-YUAN WU
IPC分类号： B23Q17/24 , G05B19/402 , B23Q17/20
CPC分类号： B23Q17/2471 , G05B19/402 , G05B2219/37402
摘要： A method for machining a surface of a workpiece includes setting a plane of the workpiece as an XY plane, aligning an axis of a machining tool to be within a predetermined angle with a normal vector of the XY plane, calculating a reference plane of the surface of the workpiece, defining a plurality of rectangular sections of the surface of the workpiece, defining a continuous machining path from a start point of a first rectangular section to an end point of a last rectangular section, calculating a center point of a plurality of planes of each rectangular section, and adjusting a Z-coordinate position of the machining tool according to a Z-coordinate difference between each of the plurality of planes and the reference plane. The Z-coordinate position of the machining tool is adjusted while the machining tool machines the surface of the workpiece along the continuous machining path.
摘要翻译： 一种用于加工工件表面的方法包括将工件的平面设置为XY平面，将加工工具的轴线与XY平面的法向量对准在预定角度内，计算表面的参考平面 限定工件表面的多个矩形部分，其限定从第一矩形部分的起始点到最后一个矩形部分的终点的连续加工路径，计算多个平面的中心点 并且根据所述多个平面中的每一个与所述参考平面之间的Z坐标差来调整所述加工工具的Z坐标位置。 在加工刀具沿着连续加工路径加工工件的表面时，调整加工刀具的Z坐标位置。
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公开(公告)号：US20150149105A1
公开(公告)日：2015-05-28
申请号：US14485214
申请日：2014-09-12
发明人： CHIH-KUANG CHANG , XIN-YUAN WU , PENG XIE
IPC分类号： G01B11/26
CPC分类号： G01B21/045
摘要： A method for applying accuracy compensation to a rotating measuring machine, a rotatable angular range of the machine is divided into sub-ranges. Each of the sub-ranges is selected, and the rotating measuring machine is rotated to an angle within the selected sub-range. After rotating, images of a working platform of the rotating measuring machine are captured to generate a point cloud. An initial plane is fitted according to the point cloud, and then an actual plane of the working platform is computed according to the initial plane, by iteration. An ideal plane of the working platform is obtained in CAD models of the rotating measuring machine, to compute a deviation angle between vectors of the actual plane and the ideal plane. When the deviation angle is less than a predetermined angle, the selected sub-range and the deviation angle are recorded into a form of a compensation report.
摘要翻译： 将精度补偿应用于旋转测量机的方法，将机器的可旋转角度范围划分为子范围。 选择每个子范围，并且将旋转测量机旋转到所选子范围内的一个角度。 旋转后，捕获旋转测量机的工作平台的图像以产生点云。 根据点云拟合初始平面，然后通过迭代根据初始平面计算工作平台的实际平面。 在旋转测量机的CAD模型中获得工作平台的理想平面，以计算实际平面的矢量与理想平面之间的偏差角。 当偏差角小于预定角度时，所选择的子范围和偏差角度被记录为补偿报告的形式。
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7.发明申请COMPUTING DEVICE AND METHOD FOR DEBUGGING COMPUTERIZED NUMERICAL CONTROL MACHINE 审中-公开用于调试计算机数字控制机器的计算装置和方法公开(公告)号：US20150117753A1
公开(公告)日：2015-04-30
申请号：US14522839
申请日：2014-10-24
发明人： CHIH-KUANG CHANG , XIN-YUAN WU , LU YANG
IPC分类号： G06T7/00
CPC分类号： G05B19/4083 , G05B2219/31447 , G05B2219/33297 , G05B2219/36414 , G06T7/13
摘要： A computing device debugs a computerized numerical control (CNC) machine. The computing device generates an average contour of a product. The computing device generates a reference contour according to the path points of a CNC program. The computing device calculates a coordinate difference between each path point of the reference contour and the corresponding contour point of the average contour. The computing device compensates each coordinate of the path points using the coordinate difference.
摘要翻译： 计算设备调试计算机化数控（CNC）机器。 计算设备产生产品的平均轮廓。 计算装置根据CNC程序的路径点生成参考轮廓。 计算装置计算参考轮廓的每个路径点和平均轮廓的相应轮廓点之间的坐标差。 计算设备使用坐标差补偿路径点的每个坐标。
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8.发明申请CLOUD SERVER AND METHOD FOR PROGRAMMING THREE-DIMENSIONAL MEASUREMENT OF PRODUCT OFF-LINE 审中-公开用于编程产品离线三维测量的云服务器和方法公开(公告)号：US20150082269A1
公开(公告)日：2015-03-19
申请号：US14484512
申请日：2014-09-12
发明人： CHIH-KUANG CHANG , XIN-YUAN WU , HENG ZHANG
IPC分类号： G06F9/44
CPC分类号： G06F9/5066 , G01B21/20
摘要： In a method for programming a three-dimensional (3D) measurement of a product off-line using a cloud server, the cloud server connects to programming computers and a verification computer. The method generates programming tasks of the product according to a 3D drawing and a dimension figure of the product, and assigning the programming tasks to the programming computers for programming the product offline to generate dimension programs. The method displays an eligible dimension program with a first color on the programming computer and updating a programming progress of the programming task to the verification computer, and displays an ineligible dimension program with a second color on the programming computer and generates a notice indicating that the programming task needs to be reprogrammed. The dimension programs to are generate integrated a 3D coordinate measurement program of the product when all the programming tasks are accomplished.
摘要翻译： 在使用云服务器对离线产品进行三维（3D）测量的方法进行编程的方法中，云服务器连接到编程计算机和验证计算机。 该方法根据3D图和产品的尺寸图生成产品的编程任务，并将编程任务分配给编程计算机，以便离线编程产品以生成维度程序。 该方法在编程计算机上显示具有第一颜色的符合条件的维度程序，并将编程任务的编程进度更新到验证计算机，并在编程计算机上显示具有第二颜色的不合格维度程序，并产生一个通知，指示 编程任务需要重新编程。 当完成所有编程任务时，要生成的产品的3D坐标测量程序集成在一起。
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公开(公告)号：US20160076880A1
公开(公告)日：2016-03-17
申请号：US14584496
申请日：2014-12-29
发明人： CHIH-KUANG CHANG , XIN-YUAN WU , LING ZHANG , HENG ZHANG
IPC分类号： G01B11/24
CPC分类号： G06T7/30 , G01B2210/52 , G06T2207/10028
摘要： A computing device and a method process point clouds of an object. The computing device controls a rotating device connected to the computing device to rotate to one or more rotation angles of the rotating device. The computing device generates a first coordinate system and one or more second coordinate systems according to one or more rotation angles of the rotating device, and obtains a point cloud of an object based on each of the second coordinate systems from a scanner of the rotating device. The computing device converts the point cloud of the object based on each of the second coordinate systems to a point cloud of the object based on the first coordinate system, and joints all point clouds of the object based on the first coordinate system.
摘要翻译： 计算设备和方法处理点对象的云。 计算设备控制连接到计算设备的旋转设备以旋转到旋转设备的一个或多个旋转角度。 计算装置根据旋转装置的一个或多个旋转角度产生第一坐标系和一个或多个第二坐标系，并且基于旋转装置的扫描器基于每个第二坐标系获得对象的点云 。 计算设备基于第一坐标系将基于每个第二坐标系的对象的点云转换为对象的点云，并且基于第一坐标系来接合对象的所有点云。
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公开(公告)号：US20150206028A1
公开(公告)日：2015-07-23
申请号：US14598358
申请日：2015-01-16
发明人： CHIH-KUANG CHANG , XIN-YUAN WU , PENG XIE
CPC分类号： G06T17/10 , G06T2210/56
摘要： In a point cloud reduction method, a point cloud model and a predetermined reduction ratio are received, and a boundary box of the point cloud model is computed and divided into a plurality of grids according to the predetermined reduction ratio. A point set which includes points in the one or more adjacent grids is obtained and a plane which intersects with a center point of the point set and takes a feature vector of the point set as a normal vector is constructed. A curvature of each point in the point set to the constructed plane is computed, and then an average curvature is computed according to the curvature of each point. Points can be deleted from the point set according to differences between the curvatures of the points in the point cloud model with the average curvature, to generate a reduced point cloud model.
摘要翻译： 在点云降低方法中，接收点云模型和预定缩小率，并且根据预定缩小率计算点云模型的边界框并将其划分为多个网格。 获得包括一个或多个相邻网格中的点的点集合，并且构建与点集合的中心点相交并将该集合的特征向量作为法线向量的平面。 计算设置到构造平面的点中的每个点的曲率，然后根据每个点的曲率计算平均曲率。 可以根据点云模型中的点的曲率与平均曲率之间的差异，从点集中删除点，以生成降低的点云模型。
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