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China Tang dynasty style historic building modeling method

A modeling method and technology of ancient buildings, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as poor building reconstruction effect, and achieve the effect of optimizing the reconstruction effect

Inactive Publication Date: 2013-09-04
XIAN UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a modeling method for Chinese Tang Dynasty-style ancient buildings, which solves the problem that the prior art is only applicable to relatively regular and simple buildings, and the reconstruction effect for buildings with complex structures is not good

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  • China Tang dynasty style historic building modeling method
  • China Tang dynasty style historic building modeling method
  • China Tang dynasty style historic building modeling method

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Embodiment Construction

[0057] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.

[0058] The modeling method of Chinese Tang Dynasty style ancient building of the present invention, at first with the ancient building model layering based on point cloud, its similar layer clustering, obtains the different components of ancient building; Then utilize the symmetry of ancient building to ancient building Different components of different components are filled with missing data; straight lines and circles are extracted by Hough transform and least square method to realize elementary analytical surface reconstruction; then according to the characteristics of each layer point, the same point is selected for each layer, and according to the positional relationship of coordina...

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Abstract

The invention relates to a China Tang dynasty style historic building modeling method. Firstly, a historic building model based on point clouds is layered, and similar layers of the historic building model are clustered to obtain different constituent parts of a historic building; then symmetry of the historic building is used for conducting missing data filling on the different constituent parts; straight lines and circles are extracted through the Hough conversion and the least square method respectively to achieve primary analytic curve surface reconstruction; same points are selected for each layer according to characteristics of the points on each layer, a quadrilateral mesh model is formed according to coordinate position relations, and free curve surface reconstruction is achieved; finally, photorealistic rendering of the historic building is achieved through a texture mapping method.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional visualization and mathematical modeling of computer graphics, and relates to a modeling method of a three-dimensional point cloud Chinese Tang Dynasty-style ancient building. Background technique [0002] The traditional 3D modeling of houses is mainly realized based on a set of picture information. For example, a 3D house modeling method based on multiple unordered photos designed by Sudipta et al. The viewpoint images of viewpoints are synthesized into new viewpoints and matched to build a 3D model of the entire object. This method effectively avoids the geometric complexity existing in the real scene, but the recovered object model lacks accurate geometric information and three-dimensional information, and the display effect of some corners of the house is not ideal, and it lacks a real three-dimensional sense. The modeling method is generally suitable for the field of virtual roamin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T17/30
Inventor 王映辉唐婧杨芳宁小娟郝雯石争浩赵明华张九龙
Owner XIAN UNIV OF TECH
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