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	Hierarchical 3D mechanical parts matching based-on adjustable geometry and topology similarity measurements
	Ma SH(马嵩华) ; Tian L(田凌) ; MA Song-hua ; TIAN Ling
	2016-03-30 ; 2016-03-30
关键词	D2 shape distribution CSG tree geometry dissimilarity topology dissimilarity adjustable weight TH13 TP391.7
其他题名	Hierarchical 3D mechanical parts matching based-on adjustable geometry and topology similarity measurements
中文摘要	A hierarchical scheme of feature-based model similarity measurement was proposed,named CSG_D2,in which both geometry similarity and topology similarity were applied.The features of 3D mechanical part were constructed by a series of primitive features with tree structure,as a form of constructive solid geometry(CSG) tree.The D2 shape distributions of these features were extracted for geometry similarity measurement,and the pose vector and non-disappeared proportion of each leaf node were gained for topology similarity measurement.Based on these,the dissimilarity between the query and the candidate was accessed by level-by-level CSG tree comparisons.With the adjustable weights,our scheme satisfies different comparison emphasis on the geometry or topology similarity.The assessment results from CSG_D2 demonstrate more discriminative than those from D2 in the analysis of precision-recall and similarity matrix.Finally,an experimental search engine is applied for mechanical parts reuse by using CSG_D2,which is convenient for the mechanical design process.; A hierarchical scheme of feature-based model similarity measurement was proposed,named CSG_D2,in which both geometry similarity and topology similarity were applied.The features of 3D mechanical part were constructed by a series of primitive features with tree structure,as a form of constructive solid geometry(CSG) tree.The D2 shape distributions of these features were extracted for geometry similarity measurement,and the pose vector and non-disappeared proportion of each leaf node were gained for topology similarity measurement.Based on these,the dissimilarity between the query and the candidate was accessed by level-by-level CSG tree comparisons.With the adjustable weights,our scheme satisfies different comparison emphasis on the geometry or topology similarity.The assessment results from CSG_D2 demonstrate more discriminative than those from D2 in the analysis of precision-recall and similarity matrix.Finally,an experimental search engine is applied for mechanical parts reuse by using CSG_D2,which is convenient for the mechanical design process.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/143767]
专题	清华大学
推荐引用方式 GB/T 7714	Ma SH,Tian L,MA Song-hua,et al. Hierarchical 3D mechanical parts matching based-on adjustable geometry and topology similarity measurements[J],2016, 2016.
APA	马嵩华,田凌,MA Song-hua,&TIAN Ling.(2016).Hierarchical 3D mechanical parts matching based-on adjustable geometry and topology similarity measurements..
MLA	马嵩华,et al."Hierarchical 3D mechanical parts matching based-on adjustable geometry and topology similarity measurements".(2016).

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