Texture mapping method based on three-dimensional model and texture mapping device thereof

A 3D model and 3D technology, applied in the field of computer vision, can solve problems such as inability to accurately generate a simulated 3D model

Active Publication Date: 2017-07-14
SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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[0004] In view of this, the embodiment of the present invention provides a texture mapping method and device based on a 3D model, whic

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  • Texture mapping method based on three-dimensional model and texture mapping device thereof
  • Texture mapping method based on three-dimensional model and texture mapping device thereof
  • Texture mapping method based on three-dimensional model and texture mapping device thereof

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[0024] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] It should be understood that in each embodiment of the present invention, the size of the serial number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than the implementation process of the embodiment of the present...

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Abstract

The invention provides a texture mapping method based on a three-dimensional model and a texture mapping device thereof. The texture mapping device simultaneously selects texture images and the feature points of the three-dimensional model so that the accuracy of a free-form surface mapping initial value obtained by performing singular value decomposition on the feature points is enabled to be greatly enhanced. Meanwhile, the data of the two-dimensional image feature points and the three-dimensional geometric feature points are normalized so that the influence of the scale factor on the error of the free-form surface mapping initial value can be reduced. Then the free-form surface mapping initial value acts as an iteration initial value to be substituted in an error distance function established according to the feature points to perform iterative computation optimization and then an accurate free-form surface mapping final value is obtained. Then the texture image is mapped to a three-dimensional free-form surface initial structure established according to point cloud data acquired by a three-dimensional model data acquisition system according to the free-form surface mapping final value so as to generate an accurate simulation three-dimensional model.

Description

technical field [0001] The present invention relates to the technical field of computer vision, and in particular to a method and device for texture mapping based on a three-dimensional model. Background technique [0002] 3D models in the real world usually cannot be represented by traditional regular polygons, polyhedrons or spheres, or cannot be accurately approximated by regular polyhedrons or spheres, while free-form surfaces have irregular shapes (B-spline surfaces, implicit surfaces and subdivision surfaces, etc.), which can realize the expression of arbitrary surfaces. How to realize the reconstruction of free-form surfaces and the mapping of free-form surfaces has attracted the attention and research of many research experts and scholars in recent years. It can be said that the realization of free-form surface representation and free-form surface mapping of complex structures is a very important and challenging research content. , has very important research signif...

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Application Information

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IPC IPC(8): G06T15/04
CPCG06T15/04
Inventor 刘星明蔡铁王辉静唐琪闫立军
Owner SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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