The proposed method can be used for CAD model reconstruction of 3d objects and free smooth shape modeling.
这种方法可以用于3d物体的CAD模型重构和自由光滑曲面模拟。
Preprocessing of "points cloud" data and surface reconstruction are the critical technology of reverse engineering and are the premises of building product CAD model.
“点云”数据的预处理和曲面重建技术是反求工程的关键技术，是产品CAD模型建立的前提。
The three-dimensional reconstruction model is widely used in the fields of CAD, reverse engineering, pattern identify, the artwork reconstruction, digital amusement (game, animation and film).
三维物体的模型重建在CAD、逆向工程、模式识别、文物艺术品的重建、数字娱乐(游戏、动画、电影)等领域有着广泛的应用。
This paper studied on free curved surface reconstruction of hand-drawing with reverse technology and "point-surface" CAD model reconstruction.
采用逆向技术路线，通过“点-面”的CAD模型重构过程对不能或不便用CAD功能来表达的手绘图案自由曲面重构进行了研究。
The main content includes the design of original data collecting system, Image preprocessing, selection and algorithm of filtering method, points cloud creating, reconstruction of 3d CAD model.
主要研究内容包括：数据采集系统设计、图像预处理、滤波方法的选择及其算法、点云生成、三维CAD模型重构。
The processing methed of data tested by laser scanner and reconstruction technology of CAD model in the reverse process of free-form surface were persented with toy of dog head as example.
针对复杂曲面数据测量及曲面重构的要求，以玩具狗头为例，介绍使用三维激光扫描仪的自由曲面反求过程中产品点数据的处理方法，以及CAD模型的重构技术，分析了反求建模中存在的问题。
The processing methed of data tested by laser scanner and reconstruction technology of CAD model in the reverse process of free-form surface were persented with toy of dog head as example.
针对复杂曲面数据测量及曲面重构的要求，以玩具狗头为例，介绍使用三维激光扫描仪的自由曲面反求过程中产品点数据的处理方法，以及CAD模型的重构技术，分析了反求建模中存在的问题。
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