摘要
基于CADCAM平台的系统开发是一种重要的开发方式,研究平台对CADCAM系统的开发有重要意义.介绍了三种主流CADCAM系统开发平台ACIS,CAS.CADE和PARASOLID,阐述了平台的主要功能、开发接口和数据结构,并分析其各自特色,最后总结了CADCAM平台的发展趋势.
Three geometric platforms, namely: ACIS, CAS.CADE and PARASOLID are reviewed briefly. Their development interface, data structure, main functions and features are analysed. Finally, the future trends of CAD/CAM development platform are summarized. Key words CAD/CAM development platform, interface,data structure,function, feature Zhang Hongcai Department of Automatic Control,Northwest Polytechnical University,Xi'an 710072 Abstract This paper analyses the influence of scale factor on moment invariant features in discrete,constructs a new moment invariant with both scale,translation and rotating invariance.In simulation experiment,we recognize the images using new moment invariant,its successful rate is 95%,but old moment invariant is only 70%,therefore the results show that new moment invariant is valuable.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2000年第2期154-159,共6页
Journal of Computer-Aided Design & Computer Graphics
关键词
开发平台
数据结构
CAD
CAM
Pattern recognition Moment Moment invariants Image features
