High-quality texture mapping method aiming at complicated three-dimensional scene

A technology of texture mapping and 3D scene, applied in image data processing, 3D modeling, instruments, etc., can solve the problem of difficult to handle large-scale complex scene texture mapping, etc., to achieve seamless texture mapping and eliminate texture color difference.

Active Publication Date: 2015-04-29
ZHEJIANG UNIV +1
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Due to the complexity of calculation time and space, these methods a

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  • High-quality texture mapping method aiming at complicated three-dimensional scene
  • High-quality texture mapping method aiming at complicated three-dimensional scene
  • High-quality texture mapping method aiming at complicated three-dimensional scene

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[0092] Input video sequences for the large-scale scene "Dionysus" opera house ruins together with depth map sequences and corresponding 3D models (e.g. figure 2 ), using the method proposed in this patent can accurately restore the complete texture map and local texture details of the scene model.

[0093] Such as figure 1 As shown, the implementation steps are as follows:

[0094] 1. Texture mapping optimization, for each facet F i , from the input image sequence I={I t Find an optimal texture image I in |t=1,...,n} l(i) , whose frame number l(i)∈{1,…,n} can be regarded as a labeling function with respect to i. The optimized texture mapping result is the set L={l(i)|i=1,...,m} of the optimal texture frame marks of all patches. Thus, we transform the texture mapping optimization problem into solving the L labeling problem. The two goals of this labeling problem are to select the texture image with the richest texture mapping information and to ensure the color consisten...

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Abstract

The invention discloses a multi-view texture mapping method. The method can be used for carrying out high-realistic texture mapping on a three-dimensional model by an image sequence shot in multiple angles. The method comprises the steps of firstly converting multi-view texture mapping into a Markov random field problem, and obtaining an optimal texture image corresponding relation of each patch by an energy optimization method; then simplifying mapped texture data, and restoring invalid textures in part of invisible regions; finally eliminating the color difference of spliced boundaries of textures by a gradient merge method, and obtaining a seamless texture mapping effect. Compared with the conventional method, the method disclosed by the invention has obvious advantages in the two aspects of mapping of complicated sheltered textures and merging of large texture data in the model; high-quality texture mapping is still generated in a complicated scene; examples in a series of complicated scenes show the effectiveness and the robustness of the method.

Description

technical field [0001] The invention relates to a high-quality texture mapping method for a three-dimensional scene, in particular to a high-quality texture mapping method for a complex three-dimensional scene. Background technique [0002] Texture mapping is the process of establishing the correspondence between the surface of a three-dimensional object and the pixel coordinates of a two-dimensional image space. In 3D graphics, texture mapping allows users to collect real natural scene photos as 2D texture data, which is very important for expressing realistic 3D object models. [0003] Each frame of video captures only a local area of ​​the scene, so multiple frames of video need to be combined to create a complete texture map of the 3D model. Wang Lifeng et al's method (L.Wang, S.B.Kang, R.Szeliski, H.-Y.Shum: Optimal texture map reconstruction from multiple views.In CVPR, 2001.) and Baumberg's method (A.Baumberg:Blending images for texturing 3D models.In BMVC,2002:404–...

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Application Information

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IPC IPC(8): G06T17/00
CPCG06T17/00G06T17/30
Inventor 章国锋鲍虎军姜翰青王博胜苏灵敏王英杰
Owner ZHEJIANG UNIV
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