公开(公告)号：US20050134586A1

公开(公告)日：2005-06-23

申请号：US10831153

申请日：2004-04-26

申请人： Bon Koo ,  Chang Chu ,  Jae Kim ,  Byoung Choi ,  Young Choi

发明人： Bon Koo ,  Chang Chu ,  Jae Kim ,  Byoung Choi ,  Young Choi

IPC分类号： G06T17/00 ,  G06T17/20

CPC分类号： G06T17/20 ,  G06T2210/56

摘要： The present invention relates to a method for generating a mesh model representing a 3D surface from unorganized 3D points extracted from a 3D scanner by using a shrink-wrapping scheme of boundary cells. A method for generating 3-dimensional mesh according to the present invention comprises the steps of: (a) receiving unorganized 3D point coordinates extracted by a 3D scanner or a digitizer; (b) extracting a minimum bounding box including all the point coordinates and uniformly dividing the extracted bounding box into cells of a predetermined size; (c) extracting a boundary cell including at least one point from the cells, extracting a boundary surface from all the boundary cells, and generating an initial mesh by summing extracted boundary surfaces; (d) calculating distances between each vertex constituting the mesh and the several points, finding a nearest point, and moving the vertex to the nearest point; and (e) averaging location of each shrink-wrapped vertex and location of the neighboring vertexes, and moving the shrink-wrapped vertex to center of neighboring vertexes.

摘要翻译： 本发明涉及一种用于通过使用边界单元的收缩包装方案从3D扫描器提取的从未组织的3D点生成表示3D表面的网格模型的方法。 根据本发明的用于生成三维网格的方法包括以下步骤：（a）接收由3D扫描仪或数字化仪提取的无组织3D点坐标; （b）提取包括所有点坐标的最小边界框，并将提取的边界框均匀地划分成预定大小的单元格; （c）从所述单元提取包括至少一个点的边界单元，从所有边界单元提取边界表面，并通过对提取的边界表面求和来生成初始网格; （d）计算构成网格的每个顶点与几个点之间的距离，找到最近的点，并将顶点移动到最近点; 和（e）平均每个收缩包装顶点的位置和相邻顶点的位置，并将收缩包装的顶点移动到相邻顶点的中心。

公开(公告)号：US06907303B2

公开(公告)日：2005-06-14

申请号：US09843776

申请日：2001-04-30

申请人： Young Choi

发明人： Young Choi

IPC分类号： H04Q1/20 ,  G06F11/20 ,  H04L1/22 ,  G06F13/00

CPC分类号： G06F11/20 ,  H04L1/22

摘要： There is provided a switching circuit for unit duplication boards designated as a working board and a protection board. In each duplication board, a software block is maintained reset at an initial hardware operation and determines the activation or deactivation state of a board according to a software command received from a central processing unit (CPU), a hardware block monitors a clock signal received from the other board using a system clock signal for the board and determines a time point when the system clock is to be activated according to the monitoring result, and a hardware board state block determines the working or protection state of the board in hardware terms, reflecting the states of the board and the other board during hardware operation. One of the unit duplication boards is automatically set to a working mode at an initial hardware operation, for hardware switching.

摘要翻译： 提供了被指定为工作板和保护板的单元复制板的切换电路。 在每个复制板中，软件块在初始硬件操作下保持重置，并根据从中央处理单元（CPU）接收的软件命令确定板的激活或去激活状态，硬件块监视从 另一块电路板使用该板的系统时钟信号，并根据监控结果确定系统时钟的激活时间点，硬件板状态块以硬件方式确定电路板的工作或保护状态，反映 硬件运行期间板卡和其他板卡的状态。 其中一个单元复制板在初始硬件操作时自动设置为工作模式，用于硬件切换。