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。

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。

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。

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。

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。

公开(公告)号：US07852354B2

公开(公告)日：2010-12-14

申请号：US11768924

申请日：2007-06-27

申请人： Chih-Kuang Chang ,  Xiao-Chao Sun ,  Zhong-Kui Yuan

发明人： Chih-Kuang Chang ,  Xiao-Chao Sun ,  Zhong-Kui Yuan

IPC分类号： G09G5/00

CPC分类号： G06T3/4038

摘要： A method for merging images of an object is provided. The method includes the steps of: (a) reading the images in a storage merging all the images to form a logic rectangle rcA, and calculating a reduction scale S of the logic rectangle rcA; (b) calculating a reduction scale S of the logic rectangle rcA; (c) generating a image rcC by reducing the logic rectangle rcA according to the reduction scale S and a coordinate mapping; (d) reading all the pixel rectangles rcB; (e) reducing each of the pixel rectangles rcB according to the reduction scale S to generate an image rcD; and (f) incorporating all the generated images rcD to the image rcC according to the coordinate mapping to form an overall image of the object. A related system is also disclosed.

摘要翻译： 提供了一种用于合并对象的图像的方法。 该方法包括以下步骤：（a）读取合并所有图像的存储器中的图像，以形成逻辑矩形rcA，并计算逻辑矩形rcA的缩小比例S; （b）计算逻辑矩形rcA的缩小比例S; （c）通过根据缩小比例S和坐标映射减少逻辑矩形rcA来生成图像rcC; （d）读取所有像素矩形rcB; （e）根据缩小比例尺S减少每个像素矩形rcB以产生图像rcD; 和（f）根据坐标映射将所有生成的图像rcD合并到图像rcC中以形成对象的整体图像。 还公开了相关系统。

公开(公告)号：US07683900B2

公开(公告)日：2010-03-23

申请号：US11025320

申请日：2004-12-29

申请人： Chih-Kuang Chang ,  Xiao-Chao Sun

发明人： Chih-Kuang Chang ,  Xiao-Chao Sun

IPC分类号： G06T15/00 ,  G06F19/00 ,  G06K9/00 ,  G01C9/00

CPC分类号： G06T15/20 ,  G06T19/20 ,  G06T2210/56 ,  G06T2219/2012 ,  G06T2219/2016

摘要： A system for processing a point cloud in a simulated three-dimensional space includes an application server (1), client computers (3), and a database (5). The application server includes: a data acquiring module (10) for acquiring from the database point cloud data on an object measured by a measurement apparatus; a point cloud editing module (12) for editing the point cloud data to make the point cloud smooth and regular, and displaying different portions of the point cloud by using different colors; and a view changing device (11). The view changing device includes a position changing module (110) and a view changing module (111). The position changing module is used for changing a position of the point cloud in the three-dimensional space. The view changing module is used for changing a view to the point cloud in the three-dimensional space. A related method is also disclosed.

摘要翻译： 用于处理模拟三维空间中的点云的系统包括应用服务器（1），客户端计算机（3）和数据库（5）。 应用服务器包括：数据获取模块（10），用于从数据库获取由测量装置测量的对象上的点云数据; 用于编辑点云数据以使点云平滑和规则的点云编辑模块（12），并通过使用不同的颜色显示点云的不同部分; 和视图改变装置（11）。 视角改变装置包括位置改变模块（110）和视图改变模块（111）。 位置改变模块用于改变三维空间中点云的位置。 视图更改模块用于将视图更改为三维空间中的点云。 还公开了相关方法。

公开(公告)号：US07254462B2

公开(公告)日：2007-08-07

申请号：US11292660

申请日：2005-12-02

申请人： Chih-Kuang Chang ,  Li Jiang ,  Hua-Wei Yang ,  Xiao-Chao Sun

发明人： Chih-Kuang Chang ,  Li Jiang ,  Hua-Wei Yang ,  Xiao-Chao Sun

IPC分类号： G06F19/00

CPC分类号： B24B49/02 ,  G05B19/401

摘要： A system for measuring a figure of a workpiece includes an application server (2). The application server includes a hardware detecting module (200) for detecting hardware after system activation and for determining whether any error occurs in the hardware. An error prompting module (200) is provided for generating a dialog box to prompt a user to maintain the system. A measuring module (202) is provided for measuring the figure of the workpiece, and for comparing measuring results. A measuring result output module (203) is provided for outputting measuring results in text form. A related method is also provided.

摘要翻译： 用于测量工件的图形的系统包括应用服务器（2）。 应用服务器包括硬件检测模块（200），用于在系统激活之后检测硬件并确定硬件中是否发生任何错误。 提供错误提示模块（200），用于生成提示用户维护系统的对话框。 提供测量模块（202）用于测量工件的图形，并用于比较测量结果。 提供测量结果输出模块（203），用于以文本形式输出测量结果。 还提供了相关的方法。

公开(公告)号：US07936948B2

公开(公告)日：2011-05-03

申请号：US11757400

申请日：2007-06-04

申请人： Chih-Kuang Chang ,  Xiao-Chao Sun ,  Zhong-Kui Yuan

发明人： Chih-Kuang Chang ,  Xiao-Chao Sun ,  Zhong-Kui Yuan

IPC分类号： G06K9/32

CPC分类号： G06T5/50 ,  G06T5/20 ,  G06T2207/30108

摘要： A system for merging differently focused images includes a computer for including a merge images program which includes a read module for reading a plurality of the differently focused images of an object disposed on a platform of a measuring machine, one image thereof as a first image (BMP), another image thereof as a next image (BMP0), and reading gray values of pixels and computing a gradient of each pixel; a determining module for determining whether the gradient (G) of each pixel in the BMP is less than the gradient (G0) of a corresponding pixel in the BMP0; and a merge images module for updating/replacing the gray value (P) and the G of the pixel in the BMP with the gray value (P0) and the G0 of the corresponding pixel in the BMP0 if the G of the pixel in the BMP is less than the G0 of the corresponding pixel in the BMP0. A related method is also provided.

摘要翻译： 用于合并不同聚焦图像的系统包括用于包括合并图像程序的计算机，该合并图像程序包括用于读取设置在测量机的平台上的对象的多个不同聚焦图像的读取模块，其一个图像作为第一图像（ BMP），作为下一图像（BMP0）的另一图像，并且读取像素的灰度值并计算每个像素的梯度; 确定模块，用于确定所述BMP中每个像素的梯度（G）是否小于所述BMP0中相应像素的梯度（G0）; 以及合并图像模块，用于如果BMP中的像素的G具有BMP0中的相应像素的灰度值（P0）和G0，更新/替换BMP中的像素的灰度值（G） 小于BMP0中相应像素的G0。 还提供了相关的方法。

公开(公告)号：US20070003158A1

公开(公告)日：2007-01-04

申请号：US11308953

申请日：2006-05-29

申请人： CHIH-KUANG CHANG ,  Xiao-Chao Sun ,  Li Jiang

发明人： CHIH-KUANG CHANG ,  Xiao-Chao Sun ,  Li Jiang

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/20192

摘要： A method for filtering image noise includes the steps of: acquiring an image; converting gray-scale values of the image and sharpening the image; defining axes perpendicular to image borders and selecting intersecting points between the axes and the image border; creating an object points set and inputting all the intersecting points into the object points set; fitting a geometric character according to the object points set; defining a tolerance threshold value; selecting an intersecting point from the object points set; calculating a distance from the selected intersecting point to the geometric character; determining whether the distance is larger than the defined tolerance threshold value; marking the selected intersecting point as a noise if the distance is larger than the defined tolerance threshold value; and deleting the selected intersecting point from the object points set. A related method is also disclosed.

摘要翻译： 滤波图像噪声的方法包括以下步骤：获取图像; 转换图像的灰度值并锐化图像; 定义垂直于图像边界的轴线，并选择轴和图像边界之间的相交点; 创建对象点集并将所有交点输入到对象点集合中; 根据设置的对象点拟合几何字符; 定义公差阈值; 从对象点集合中选择一个相交点; 计算从所选交叉点到几何字符的距离; 确定距离是否大于限定的公差阈值; 如果所述距离大于限定的公差阈值，则将所选择的相交点标记为噪声; 并从对象点集中删除所选择的相交点。 还公开了相关方法。