Freehand interactive three-dimensional model retrieval method based on high-level semantic property comprehension

Abstract

The invention provides a freehand interactive three-dimensional model retrieval method based on high-level semantic property comprehension. According to the method, first, a data driving mode is utilized to extract global-local semantic properties of freehand sketches under different styles and categories, and a semantic property space of the freehand sketches is defined; second, on the basis of the defined semantic property space, automatic annotation of semantic properties is performed on a three-dimensional model in a database according to content characteristics corresponding to the three-dimensional model; and last, the semantic properties of the freehand sketches and the semantic properties of the three-dimensional model in the database are mapped to the same measurement space by means of constructing a semantic property tree for comparison, and if the similarity between the semantic properties of the freehand sketches and the semantic properties of the three-dimensional model reaches a set similarity, information of the three-dimensional model is fed back, and retrieval is completed. Through the method, deviation brought by an existing freehand interactive three-dimensionalmodel retrieval algorithm through which a three-dimensional model cannot be compared with freehand sketches unless the three-dimensional model is projected into a two-dimensional view is avoided.

Description

technical field [0001] The invention relates to a hand-painted interactive three-dimensional model retrieval method based on high-level semantic attribute understanding, which belongs to the technical field of computer graphics and multimedia information retrieval. Background technique [0002] With the rapid development of technologies such as 3D modeling and laser scanning, 3D models have been widely used in many fields such as industrial product construction, 3D video animation, architectural clothing design, and medical information visualization. However, how to quickly and accurately search for the 3D models needed by users from a large-scale 3D model database is still a very difficult task, especially in the context of the current big data era, the types and quantities of 3D models are geometrically The growth of the series, and most of the models are different in function type and appearance structure. The traditional keyword-based and instance-based 3D model retriev...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the existing technology, and propose a three-dimensional model retrieval method based on high-level semantic understanding, so as to solve the problems of low retrieval accuracy due to various hand-painted styles of users, and make the retrieval and query method of hand-painted interaction more convenient. Free expression suitable for users' retrieval needs Based on the above analysis, improve retrieval efficiency and accuracy

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