Development of a drawing understanding system compiler for cad database constructions

CAD数据库构建的绘图理解系统编译器的开发

• 批准号: 03555072
• 负责人: SAKAUCHI Masao
• 金额: $ 6.78万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03555072/
• 关键词: Drawing Processing; Drawing Compiler; Model-based Vision; Database Capture; Map; Engineer Drawings; Spatial Data Structure; Rule Learning; 図面デ-タベ-ス; 図面認識; Drawing Processing; Drawing Compiler; Model-based Vision; Database Capture; Map; Engineer Drawings; Spatial Data Structure; Rule Learning; 図面デ-タベ-ス; 図面認識

In this research project, effective environment for drawing understanding system realization, ie. drawing understanding system compiler, has been successfully developed. The following concrete results have been obtained.(1) Development multi-purpose drawing understanding system (a drawing compiler I) based on state-transition description of recognition rules:A state-transition type drawing compiler, where recognition level of objects in a drawing corresponds to a 'state' and bottom up and top down recognition rules correspond to 'transitions from state to another states' has been proposed and implemented by about a 6,500 lines Program of C and Prolog languages. Experiments for maps, hand-written drawings and relatively simple engineering drawings revealed the effectiveness of this system.(2) Development of a general purposed drawing complier II base on object-oriented model description of target drawings:Another type of drawing complier, where TMS and object-oriented model description of a target drawing are introduced, has been proposed and implemented by a about 5,000 line Prolog and 7,000 lines C program. Experiments for engineering drawings, layout diagrams revealed generality and effectiveness of the method.(3) Two suporting system also have successfully developed; one is original spatial data management structures and the other is a recognition rule learning system based on given positive and negative examples.

在这个研究项目中，有效的环境了解理解系统实现，即。绘图理解系统编译器已成功开发。 The following concrete results have been obtained.(1) Development multi-purpose drawing understanding system (a drawing compiler I) based on state-transition description of recognition rules:A state-transition type drawing compiler, where recognition level of objects in a drawing corresponds to a 'state' and bottom up and top down recognition rules correspond to 'transitions from state to another states' has been proposed and implemented by about a 6,500 lines Program of C and Prolog语言。图，手工编写的图纸和相对简单的工程图的实验揭示了该系统的有效性。（2）开发了目标图纸的一般目的的图形图形II基础上，基于目标图形的对象导向的模型描述：TMS和对象绘图的另一种类型的图形和面向对象的目标模型的模型描述已介绍，已提出，并通过5,000行PROLOL和7,000行PROLOL和7,000行CROLOL和7,000行c进行了CROP。工程图，布局图的实验揭示了该方法的一般性和有效性。（3）两个辅助系统也成功地开发了；一个是原始的空间数据管理结构，另一个是基于给定的正面和负面示例的识别规则学习系统。