3D Assembly Model Retrieval Method Fused with Assembly Information
A technology for assembling models and information retrieval, applied in the field of three-dimensional model retrieval, can solve the problems of low retrieval efficiency, low accuracy, semantic inconsistency, etc., and achieve the effect of simplifying program redundancy, reducing workload, and improving accuracy
Active Publication Date: 2021-07-02
XIAN TECH UNIV
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[0005] The purpose of the present invention is to propose a 3D assembly model retrieval method that fuses assembly information to address the problems of semantic inconsistency, low accuracy, and low retrieval efficiency in the existing 3D assembly model retrieval methods
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[0043] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and genera...
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The invention relates to the technical field of three-dimensional model retrieval, in particular to a three-dimensional assembly model retrieval method that fuses assembly information. The retrieved target model is an assembly that matches an input model. The technical solution provided by the present invention is: a 3D assembly model retrieval method that integrates assembly information. First, the assembly information is retrieved, the assembly information is represented by a symbolic code, and the code of the part is searched to extract a 3D model that meets the assembly design intention; On this basis, since there is a conjugate relationship between the assembly parts, there are conjugate subgraphs between the pairwise attribute adjacency graphs with the assembly relationship, and the geometric retrieval of the assembly parts is transformed into finding the attribute adjacency that conforms to the conjugate subgraph Graph, the model is retrieved through the attribute adjacency graph of the part; finally, the attribute adjacency graph that satisfies the conjugate subgraph is extracted by using the frequent subgraph mining method, so as to reuse the model. The invention has high retrieval accuracy and high retrieval efficiency.
Description
technical field [0001] The invention relates to the technical field of three-dimensional model retrieval, in particular to a three-dimensional assembly model retrieval method that fuses assembly information. Background technique [0002] The application of the 3D model retrieval method can solve the problem of reusing a large number of complex models in enterprises, and is of great significance to improving the efficiency and quality of product development and shortening the product life cycle. The 3D model retrieval technology is based on the model library accumulated by the enterprise. By inputting the required model, the system can extract similar part models, so that the designer can choose from them, reduce the workload, and achieve the purpose of model reuse. With the increasing requirements of enterprises for informatization, reuse of 3D assembly model information is a hot issue in current research. Therefore, enterprises' requirements for model retrieval technology a...
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IPC IPC(8): G06F16/29G06F30/13G06F111/04
CPCG06F30/13
Inventor 乔虎吴庆云杜江白瑀何俊徐昭晖师治全
Owner XIAN TECH UNIV