公开(公告)号：US20100104198A1

公开(公告)日：2010-04-29

申请号：US12488553

申请日：2009-06-20

Applicant: CHIH-KUANG CHANG ,  YONG-HONG DING ,  LI JIANG ,  ZHONG-KUI YUAN ,  XIAO-GUANG XUE

Inventor： CHIH-KUANG CHANG ,  YONG-HONG DING ,  LI JIANG ,  ZHONG-KUI YUAN ,  XIAO-GUANG XUE

IPC: G06K9/46

CPC classification number: G06T7/60 ,  G06T2207/30164

Abstract: A system and method for determining inflection points in an image of an object includes obtaining the image of the object, performing binary image processing on a border of the image to obtain border points, selecting a predetermined number of the border points to fit a straight line, calculating a vertical distance between each selected border point and the straight line, and obtaining a total distance. The method further includes adding a new border point to the selected border points if the total distance is less than a predetermined value, so as to fit a new straight line and do a loop cycle, otherwise, regarding a last border point of the selected border points as an inflection point, and sequentially selecting the predetermined number of other border points to fit another new straight line.

Abstract translation: 用于确定对象的图像中的拐点的系统和方法包括获得对象的图像，对图像的边界执行二值图像处理以获得边界点，选择预定数量的边界点以拟合直线 计算每个所选边界点和直线之间的垂直距离，并获得总距离。 该方法还包括如果总距离小于预定值，则将新的边界点添加到所选择的边界点，以便适合新的直线并进行循环循环，否则关于选定边界的最后边界点 点作为拐点，并且顺序地选择预定数量的其它边界点以适合另一新直线。

公开(公告)号：US20100053191A1

公开(公告)日：2010-03-04

申请号：US12338959

申请日：2008-12-18

Applicant: CHIH-KUANG CHANG ,  LI JIANG ,  YONG-HONG DING ,  XIAN-YI CHEN ,  DONG-HAI LI

Inventor： CHIH-KUANG CHANG ,  LI JIANG ,  YONG-HONG DING ,  XIAN-YI CHEN ,  DONG-HAI LI

IPC: G09G5/02

CPC classification number: G01B21/20 ,  G01B11/2408 ,  G06T7/0006 ,  G06T7/64 ,  G06T2207/10028 ,  G06T2207/30164

Abstract: A method and system for computing and displaying a roundness error of an object specifies different colors that respectively represents an error range of points. The method and system receives a point cloud of the object and fits a circle based on the point cloud. The method and system computes an error of each point in the point cloud by computing a distance between the each point and the circle, colorizes the points in the point cloud according to the errors and the specified colors, and generates and outputting a graphic roundness error analysis report.

Abstract translation: 用于计算和显示物体的圆度误差的方法和系统指定分别表示点的误差范围的不同颜色。 该方法和系统接收对象的点云，并基于点云适合一个圆。 该方法和系统通过计算每个点和圆之间的距离来计算点云中每个点的误差，根据错误和指定的颜色对点云中的点进行着色，并生成并输出图形圆度误差 分析报告

公开(公告)号：USD609651S1

公开(公告)日：2010-02-09

申请号：US29323218

申请日：2008-08-21

Applicant: Chih-Kuang Chang ,  Li Jiang ,  Dong-Hai Li ,  Yan-Li Li ,  Yong-Hong Ding ,  Xiao-Guang Xue

Designer： Chih-Kuang Chang ,  Li Jiang ,  Dong-Hai Li ,  Yan-Li Li ,  Yong-Hong Ding ,  Xiao-Guang Xue