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Polarization information-based three-dimensional reconstruction method

A technology of three-dimensional reconstruction and polarization information, applied in the field of three-dimensional reconstruction, can solve the problems of complex surface normal correction process, and achieve the effect of improving reconstruction efficiency

Active Publication Date: 2018-02-09
XIDIAN UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a method for reconstructing the surface of an object based on polarization information, which is used to solve the problem of surface normal correction process existing in the existing three-dimensional reconstruction method using polarization information complex technical issues

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[0033] In order to make the object of the present invention, the technical problem to be solved and the technical solution clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] refer to figure 1 , a black box device for obtaining polarization images and depth information of an object to be reconstructed, comprising an integrating sphere 1, a detector 2, a polarizer 3, a depth sensor 4, a driver 5 and a dark box 6; the integrating sphere 1, the detector 2, The polarizer 3 and the driver 5 are fixed in the bottom plate of the dark box; the top of the detector 2 is connected with the depth sensor 4, and the polarizer 3 is fixed in front of the detector 2 and is parallel to the lens of the detector 2; the polarizer 3, The depth sensor 4 and the detector 2 are placed on the illuminated side of the object to be reconstructed.

[0035] In this embodiment, the detector uses a CMOS came...

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Abstract

The present invention provides a polarization information-based three-dimensional reconstruction method. The invention aims to solve the technical problem of relatively complicated correction processof a surface normal in existing methods which perform three-dimensional reconstruction by using polarization information. The implementation process of the method of the invention includes the following steps that: the polarization image and depth information of an object to be reconstructed are obtained; registered depth information is obtained; the polarization degree of the object to be reconstructed is calculated; the incident azimuth and incident angle of incident light on the surface of the object to be reconstructed are calculated; the components of the polarization surface normal of the object to be reconstructed in an x-axis direction and a y-axis direction are calculated; direction correction is performed on the components of the polarization surface normal of the object to be reconstructed in the x-axis direction and y-axis direction by using the depth information; and surface integration is performed on the corrected components of the polarization surface normal of the object to be reconstructed in the x-axis direction and y-axis direction, so that the three-dimensional information of the object to be reconstructed is obtained. The method of the invention has high reconstruction efficiency and can be used for acquiring and analyzing the three-dimensional information of objects.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional reconstruction and relates to a three-dimensional reconstruction method, in particular to a three-dimensional reconstruction method based on polarization information, which can be used for acquiring and analyzing three-dimensional information of objects. Background technique [0002] 3D reconstruction refers to the acquisition of complete 3D information including structure, texture, scale and other objects through reconstruction technology. At present, there are two common methods of 3D reconstruction, namely contact measurement method and non-contact measurement method. The contact measurement method is based on the principle of force triggering, and the coordinates of the sampling points on the surface of the object are obtained through direct contact between the probe and the object. The non-contact measurement method refers to the method of obtaining and measuring the three-dimensio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/10G06T5/00G06T7/33G06T7/55
CPCG06T7/337G06T7/55G06T15/10G06T2215/06G06T5/80
Inventor 刘飞黄盛志高鹰韩平丽邵晓鹏杨奎卫毅李鑫李果
Owner XIDIAN UNIV
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