武汉理工大学学报（信息与管理工程版）
武漢理工大學學報（信息與管理工程版）
무한리공대학학보（신식여관리공정판）
Journal of Wuhan University of Technology (Information & Management Engineering)
2015年
5期
537-541
,共5页
面属性图%外环边循环码%模型检索%子图匹配
麵屬性圖%外環邊循環碼%模型檢索%子圖匹配
면속성도%외배변순배마%모형검색%자도필배
face attribute graph%cycle code of the outer edges%model retrieval%sub-graph matching
针对现有基于面属性图需要应用图匹配或子图匹配计算来实现CAD模型的形状匹配，且其模型检索方法存在检索效率低下或检索结果不够准确的问题，提出了一种基于面属性相似的CAD模型检索方法。在现有的模型面属性基础上，引入了包含较多属性的面特征属性和面几何边界特征属性来表达CAD模型的形状特征。特别是外环边循环码可以更详细地表达模型的面几何边界特征属性，只需要采用简单的模型面属性相似性度量方法就能实现CAD模型的形状检索。实验结果表明，该方法能够实现CAD 模型的形状检索，其检索效率和精准程度能够满足实际需要，显著提高了CAD模型面的形状辨识能力。
針對現有基于麵屬性圖需要應用圖匹配或子圖匹配計算來實現CAD模型的形狀匹配，且其模型檢索方法存在檢索效率低下或檢索結果不夠準確的問題，提齣瞭一種基于麵屬性相似的CAD模型檢索方法。在現有的模型麵屬性基礎上，引入瞭包含較多屬性的麵特徵屬性和麵幾何邊界特徵屬性來錶達CAD模型的形狀特徵。特彆是外環邊循環碼可以更詳細地錶達模型的麵幾何邊界特徵屬性，隻需要採用簡單的模型麵屬性相似性度量方法就能實現CAD模型的形狀檢索。實驗結果錶明，該方法能夠實現CAD 模型的形狀檢索，其檢索效率和精準程度能夠滿足實際需要，顯著提高瞭CAD模型麵的形狀辨識能力。
침대현유기우면속성도수요응용도필배혹자도필배계산래실현CAD모형적형상필배，차기모형검색방법존재검색효솔저하혹검색결과불구준학적문제，제출료일충기우면속성상사적CAD모형검색방법。재현유적모형면속성기출상，인입료포함교다속성적면특정속성화면궤하변계특정속성래표체CAD모형적형상특정。특별시외배변순배마가이경상세지표체모형적면궤하변계특정속성，지수요채용간단적모형면속성상사성도량방법취능실현CAD모형적형상검색。실험결과표명，해방법능구실현CAD 모형적형상검색，기검색효솔화정준정도능구만족실제수요，현저제고료CAD모형면적형상변식능력。
A CAD model retrieval method based on the similarity of face attributes was presented in order to resolve the prob-lem that graph matching or sub-graph matching realizing the CAD model retrieval based on face attribute graph may not be effec-tive and efficient enough.Based on the existing representations for face attributes, the face attributes and geometry boundary at-tributes were introduced to represent the shape of CAD models.In particular, cycle code of the outer edges was adopted to de-scribe the shape of CAD models in detail, which greatly increased the resolution of the face shape.Thus, the similar evaluations between the compared models were used for realizing the CAD model retrieval instead of graph matching or sub-graph matching. Experimental results show that this method is able to support CAD model retrieval and its efficiency and effect meets the require-ment of practical applications.
