Method and system of three-dimensional scene modeling based on ontology

Abstract

The invention provides a method of three-dimensional scene modeling based on ontology, including: establishing a ontology file of scene modeling; using recursive grammar method to generate scene modeling and storing in semantic format; checking the generated scene modeling whether conflit with standard information in the established standard files. The invention also provides a three-dimensional scene modeling drawing system based on ontology for implementing the method. The invention does not need expensive modeling device and has simple interaction and easy usage, the constructed scene conforms objective reality. Especially in eatablishing application process of history scene conforming to specific historical rules, the invention provided method can combine the correct descriptions to history scene of historians, architects, geographers and computer professionals, to build specific history scene conforming to history and geography features.

Description

technical field [0001] The invention relates to a method for establishing a complex three-dimensional scene model. Background technique [0002] The currently more common 3D scene modeling methods mainly include: [0003] (1) Manual 3D scene modeling: Use commercial 3D modeling software such as 3DS and Sketchup to manually build a 3D model scene. This method is still the most reliable 3D scene modeling method at present, but it requires a lot of manual labor and is inefficient. [0004] (2) Physical model modeling: establish the physical model of the 3D scene, and obtain the 3D scene model to be constructed by specifying the parameters input into the model. The shortcomings of this method are obvious. First, it is very difficult to establish a physical model for complex scenes. Secondly, not all 3D scenes can establish their physical models and then build a 3D model. Many restrictions. [0005] (3) Grammatical modeling method: that is to establish recursive rules for sce...

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Problems solved by technology

The shortcomings of this method are obvious. First, it is very difficult to establish a physical model for complex scenes. Secondly, not all 3D scenes can establish their physical models and then build a 3D model. many restrictions

[0005] (3) Grammatical modeling method: that is to establish recursive rules for scene model construction such as L-system, shape grammar, etc., and obtain the scene model by recursively recursing the grammatical rules, see Przemyslaw Prusinkiewicz.Simulation modeling of plants and plant ecosystems.Communications of the ACM, 43(7):84-93, 2000. and Pascal M¨uller, Peter Wonka, Simon Haegler, Andreas Ulmer, and Luc J. Van Gool. Procedural modeling of buildings. ACM Transactions on Graphics, 25(3) : 614-623, 2006. Although this type of method can efficiently generate a large number of 3D scene models, it is limited by the randomness of the recursive grammar, and cannot guarantee that the produced models can meet the modeling requirements

[0007] Wordseye: an automatic text-to-scene conversion system. In Proceedings of the 28th Annual Conference on Computer Graphics, Los Angeles, California, USA. ACM, pages 487-496, 2001. Adoption of such methods is often subject to natural language ambiguities Influenced by nature and context semantics, resulting in non-unique modeling results

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