A texture mapping method for multi-view large-scale 3D reconstruction scenes

Abstract

The invention discloses a multiview large-scale three-dimensional scene reconstruction-based texture mapping method, and belongs to the field of computer graphics. The method comprises the following steps of: taking multi-angle image sequences and image camera parameters of a three-dimensional model and a reconstruction model of a large-scale three-dimensional scene as input data; and obtaining alarge-scale three-dimensional model with textures through the steps of texture quality calculation, shelter texture removal, combinatorial optimization of texture, texture block color adjustment and boundary texture fusion. The method has high parallelism, is capable of carrying out large-scale parallel calculation on GPUs so as to breaking through calculation bottleneck of traditional texture mapping algorithms, and is capable of effectively removing shelter textures and fusing boundary-inconsistent textures so as to obtain high-quality models with textures. The method is high in calculationspeed and relatively high in texture consistency and definition, and has broad application prospect in the aspects of map navigation, digital city and geomorphic survey.

Description

technical field [0001] The invention belongs to the field of computer graphics, and more specifically relates to a texture mapping method for multi-view large-scale three-dimensional reconstruction scenes. Background technique [0002] In the field of computer vision, multi-view is usually used for 3D reconstruction of large-scale real scenes. Multi-view 3D reconstruction refers to the process of reconstructing 3D information based on multi-view image sequence information, which has the advantages of high fidelity, high degree of automation, and low cost. The common method is to first calibrate the camera parameters to obtain the relationship between the camera's two-dimensional image coordinate system and the world coordinate system in the real scene, and then use the two-dimensional image sequence to reconstruct the three-dimensional information. [0003] In recent years, with the development of new technologies such as drones and the popularization of the Internet, the w...

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a texture mapping method for multi-view large-scale 3D reconstruction scenes. Adjustment, boundary texture fusion and other steps to obtain a large-scale 3D model with texture, thereby optimizing the computational bottleneck of the traditional 3D model texture mapping algorithm, improving the efficiency of texture mapping, and solving the problems caused by the increase in scene scale and complexity Scale differences and occlusion problems, improve the accuracy and consistency of the texture obtained by the algorithm, so that the new algorithm can meet the needs of large-scale 3D scene reconstruction

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