一种基于二维草图的三维CAD模型检索方法  

A 3D CAD model search method based on 2D drafts

作　　者：黄明聪[1] 张树生[1] 张孝龙[1] 郑旺[1] 

机构地区：[1]西北工业大学现代设计与集成制造教育部重点实验室,陕西西安710072

出　　处：《锻压装备与制造技术》2013年第3期107-110,共4页China Metalforming Equipment & Manufacturing Technology

基　　金：国家"863"高技术研究发展计划资助项目(2007AA04Z137)

摘　　要：提出一种基于二维草图的三维CAD模型检索方法,通过比较三视图草图和CAD模型三视图来实现模型的检索。首先提取模型库中CAD模型的三视投影图,然后利用联合描述子方法对用户绘制提交的二维三视图草图和CAD模型的三视投影图进行相似性评价,实现模型的检索。实验结果表明,文中方法具有较好的检索性能,检索结果能更好地反映用户的检索意图。A novel 3D CAD model search method based on 2D drafts has been proposed. By comparing the 3D view draft and CAD model three views, the search of model has been realized. Firstly, three orthographic projection views of the CAD model have been extracted. Then the combined descriptor has been adopted to evaluate the similarity between 2D three views draft which is input by the user and the three orthographic projection views of CAD model. The test results show that this method is better in search function the result of which can better show the search intention of the user.

关 键 词：制造业信息化 模型检索 二维草图 三视图 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]