公开(公告)号：US20080303810A1

公开(公告)日：2008-12-11

申请号：US11759641

申请日：2007-06-07

申请人： Seockhoon Bae ,  Donghoon Lee ,  Sungwook Cho ,  Seungyob Kim ,  Changyoon Yang

发明人： Seockhoon Bae ,  Donghoon Lee ,  Sungwook Cho ,  Seungyob Kim ,  Changyoon Yang

IPC分类号： G06T15/00

CPC分类号： G06F17/50

摘要： A mechanism for automatically calculating loft surfaces from raw 3D scan data represented as a mesh or point cloud model is discussed. Users enter parameters related to the loft surface calculation via a provided user interface. User input and/or programmatically calculated parameters may include U-V direction, guide curve identification, and the amount of allowable deviation error between the calculated loft surface and the 3D scan data. Profile curves meeting the given parameters are then generated and a loft surface is calculated using the generated profile curves for a selected region. The user may select geometrically separated regions in order to create a single loft surface that connects the separate regions.

摘要翻译： 讨论了一种用于自动计算由原始3D扫描数据表示为网格或点云模型的放样曲面的机制。 用户通过提供的用户界面输入与阁楼表面计算相关的参数。 用户输入和/或编程计算的参数可包括U-V方向，导向曲线识别以及计算的阁楼表面与3D扫描数据之间允许的偏差误差量。 然后生成符合给定参数的轮廓曲线，并使用生成的所选区域的轮廓曲线计算出一个倾斜面。 用户可以选择几何分离的区域，以便创建连接分开的区域的单个阁楼表面。

公开(公告)号：US20080012851A1

公开(公告)日：2008-01-17

申请号：US11486554

申请日：2006-07-13

申请人： Seockhoon Bae ,  Donghoon Lee ,  Seungyob Kim ,  Sungwook Cho

发明人： Seockhoon Bae ,  Donghoon Lee ,  Seungyob Kim ,  Sungwook Cho

IPC分类号： G06T15/00

CPC分类号： G06T17/00

摘要： An automated mechanism that identifies and defines a global coordinate system that is most appropriate for a collection of raw 3D scan data used to form a mesh model is discussed. More specifically, a coordinate system is identified that is able to minimize the total sum of deviation error while also minimizing the peak error for raw 3D scan data. The present invention searches for appropriate coordinate systems from raw 3D scan data in a fully automated way. Multiple coordinate systems in order of likelihood of leading to minimal global deviation error are identified and presented to a user. End users are also allowed to edit suggested coordinate system parameters interactively prior to the alignment of the 3D scan data being transformed based on a selected coordinate system.

摘要翻译： 讨论了一种自动化机制，其识别和定义最适合于用于形成网格模型的原始3D扫描数据的集合的全局坐标系。 更具体地，识别能够最小化偏差误差的总和并同时最小化原始3D扫描数据的峰值误差的坐标系。 本发明以完全自动的方式从原始3D扫描数据中搜索适当的坐标系。 确定导致最小全局偏差误差的可能性的多个坐标系，并呈现给用户。 还允许最终用户在基于所选择的坐标系进行正在变换的3D扫描数据的对准之前交互地编辑建议的坐标系参数。

公开(公告)号：US07639253B2

公开(公告)日：2009-12-29

申请号：US11486554

申请日：2006-07-13

申请人： Seockhoon Bae ,  Donghoon Lee ,  Seungyob Kim ,  Sungwook Cho

发明人： Seockhoon Bae ,  Donghoon Lee ,  Seungyob Kim ,  Sungwook Cho

IPC分类号： G06T15/10 ,  G06T15/20

CPC分类号： G06T17/00

摘要： An automated mechanism that identifies and defines a global coordinate system that is most appropriate for a collection of raw 3D scan data used to form a mesh model is discussed. More specifically, a coordinate system is identified that is able to minimize the total sum of deviation error while also minimizing the peak error for raw 3D scan data. The present invention searches for appropriate coordinate systems from raw 3D scan data in a fully automated way. Multiple coordinate systems in order of likelihood of leading to minimal global deviation error are identified and presented to a user. End users are also allowed to edit suggested coordinate system parameters interactively prior to the alignment of the 3D scan data being transformed based on a selected coordinate system.

摘要翻译： 讨论了一种自动化机制，其识别和定义最适合于用于形成网格模型的原始3D扫描数据的集合的全局坐标系。 更具体地，识别能够最小化偏差误差的总和并同时最小化原始3D扫描数据的峰值误差的坐标系。 本发明以完全自动的方式从原始3D扫描数据中搜索适当的坐标系。 确定导致最小全局偏差误差的可能性的多个坐标系，并呈现给用户。 还允许最终用户在基于所选择的坐标系进行正在变换的3D扫描数据的对准之前交互地编辑建议的坐标系参数。