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The conventional shape feature-based method did not describe the local feature enough. This paper proposed a new 3D model retrieval method based on projected area at mesh vertex. First, sum the projected area on vertical plane of the normal vector at mesh vertex, then normalized the list of the projected area distributions and transfer these data by Fourier transform method. Then the result is defined...
In order to realize information sharing and information reuse of technique preparation process, idea of domain ontology was applied in technique preparation process. The concept of technique preparation domain ontology was proposed and its structure was designed. Moreover, the information retrieval framework for technique preparation based on domain ontology was put forward and the flowchart of the...
A novel local shape descriptor, geodesic connected graph, is proposed for the representation of three-dimensional (3D) prismatic CAD model represented by triangle meshes. First, the model is segmented using the extended Gaussian image. Second, the segmented areas which are visual from certain direction are connected by geodesic lines. Finally, a geodesic connected graph of feature areas is constructed...
In order to realize information integration and information sharing of technique preparation process, idea of ontology was applied in technique preparation process. The definition and structure of technique preparation domain ontology were put forward. Moreover, the framework of an intelligent approach for construction technique preparation domain ontology was proposed and similarity computing approach...
This study intends to propose an intelligent system with agent technology in order to realize integration of computer-aided process planning (CAPP) and computer-aided fixture design (CAFD). The agent-based system framework, in which various intelligent agents worked together to perform process planning and fixture design tasks in an autonomous and collaborative way, was put forward. The system consisted...
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