面向三维重建的工艺语言理解及工艺语义模型构建  

Semantics Understanding and Construction of Process Semantic Model for 3D Reconstruction

作　　者：黄瑞[1] 张树生[1] 石云飞[1] 陶俊[1] 

机构地区：[1]西北工业大学现代设计与集成制造技术教育部重点实验室

出　　处：《航空制造技术》2011年第7期87-89,95,共4页Aeronautical Manufacturing Technology

摘　　要：从动态工艺设计过程的视角考察工艺设计意图和二维工序图形的进化进程,以电子工艺卡片为输入对象,将自然语言理解技术和图形理解技术相融合,用具有工艺语义的工序语言指导二维工序图形的三维重建,实现对制造毛坯三维形态演变过程的智能推理,重建出基于特征的零件模型及中间工序模型。研究了工艺语义的定义与表示、机械加工领域概念知识库的构建及基于自动分词的工艺语义提取算法。The process planning intention and the evolution of 2D-procedure drawing are inspected from the point of dynamic process design.The natural language understanding technology and the graphic understanding technology are combined by using the electronic process sheets as the input objects.The procedure language with process semantic is used to guide the 3D reconstruction from 2D procedure graph,and the intelligent inference of the 3D model evolution process of roughcast is realized and the part model and the middle procedure model based on features are reconstructed.The definition and expression of process semantic,the construction of concept knowledge base in machining field and the extraction algorinthm of process semantic based on automatic segmentation are researched.

关 键 词：三维重建 工艺语义 工序模型 

分 类 号：TH162[机械工程—机械制造及自动化]