Method of constructing virtual experiment teaching scene based on image material

Abstract

The invention relates to a method of constructing a virtual experiment teaching scene based on an image material. The method mainly comprises the following steps: obtaining an image object of a teaching experiment instrument by using an interactive image object extracting method based on a geodesic line; rapidly modeling vivid and reusable virtual experiment components by using the image object of the teaching experiment instrument and a simple geometric pattern element, and adding the virtual experiment components into a multidisciplinary virtual experiment component library; on the basis of initialization of the virtual experiment teaching scene, searching the required virtual experiment components from the virtual experiment component library according to a user requirement, combining the searched virtual experiment components to an initial virtual experiment teaching scene, and editing the logic attribute and appearance attribute of the selected virtual experiment components in a visual form; in the virtual experiment teaching scene, interactively pointing the connection relation between the virtual experiment components by a user, automatically constructing and visualizing the connection relation by using a connection line generation algorithm based on equivalence connection so as to finish the construction of the virtual experiment teaching scene.

Description

technical field [0001] The invention relates to the fields of virtual reality and computer-aided teaching, in particular to a method for constructing a virtual experimental teaching scene based on image materials. Background technique [0002] As an important supplement to modern classroom education, distance education technology uses traditional media such as video and audio as the carrier of knowledge dissemination. However, due to the spatial separation of teachers and students in distance education, students cannot go directly to the school to complete the experiment. The lack of equipment cannot fully meet the needs of experimental teaching, and students cannot obtain interactive and immersive experience, resulting in difficult contradictions in experimental teaching, making experimental teaching a weak link in distance education. Therefore, the quality of teaching is often poor. Virtual reality takes computer technology as the core and combines relevant science and tec...

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned typical virtual experiment teaching systems, each virtual experiment teaching scene is a relatively independent application program, that is, the experimental scene has been constructed after the program design is completed, and the virtual experimental teaching scene for students is ignored. The construction process of the virtual experimental teaching scene is embedded in the program system, and the virtual experimental teaching scene does not have scalability and sharing; the virtual experimental component depends on different system designs, and the modeling of the virtual experimental component requires professional programming knowledge. Complex, difficult to expand and reuse, different virtual teaching experiment systems cannot share virtual experiment components, which limits the richness of virtual experiment teaching resources; the modeling of virtual experiment components and scenes adopts the modeling method based on geometric figures, which requires Professional art knowledge, modeling requires a lot of resources, it is difficult to achieve fast and realistic virtual experiment teaching component modeling and scene construction

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