조립 관계 유사도의 히스토그램을 이용한 3 차원 조립체의 형상 비교 방법

Abstract

Comparison of 3D CAD model is required to retrieve 3D design from CAD model database for design reuse, mass customization and machining process planning. Typical CAD model retrieval systems are based on part names, codes or annotations assigned to 3D CAD models. However, aforementioned approaches have limitations on usability and robustness of retrieval results. In this research, we proposed the approach of comparing 3D CAD models by improving global descriptor based shape comparison methods. Our proposed method can be applied to assembly models. By deriving separate measurement values for part shape dissimilarity and assembly relationship dissimilarity, detailed comparison result can be obtained compared with existing 3D shape comparison methods.