Three-dimensional assembly model retrieval method for fusing assembly information
A technology for assembling models and information retrieval, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as low retrieval efficiency, semantic inconsistency, and low accuracy, so as to simplify program redundancy and improve accuracy Sexuality, the effect of reducing workload
Active Publication Date: 2018-09-25
XIAN TECHNOLOGICAL 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 for fusing assembly information. A retrieved target model is an assembly part matched with an input model. According to the technical scheme, the three-dimensional assembly model retrieval method for fusing assembly information comprises the stepsthat firstly, assembly information retrieval is performed, assembly information is represented by using signified codes, codes of parts are looked up to extract a three-dimensional model conforming tothe intention of assembly design; on the basis, due to the fact that the assembly parts have conjugate relation, a conjugate graph exists between every two attribute adjacent graphs having assembly relation, geometrical retrieval of the assembly parts is converted into lookup of attribute adjacent graphs conforming to conjugate sub-graphs, and model retrieval is performed according to the attribute adjacent graphs of the parts; finally, a frequent sub-graph mining method is utilized to extract out the attribute adjacent graphs conforming to the conjugate sub-graphs so as to perform model reuse. The three-dimensional assembly model retrieval method is high in retrieval accuracy and meanwhile is high in 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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Login to View More IPC IPC(8): G06F17/30G06F17/50
CPCG06F30/13
Inventor 乔虎吴庆云杜江白瑀何俊徐昭晖师治全
Owner XIAN TECHNOLOGICAL UNIV