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Single-shot 3D reconstruction imaging approach based on polarization properties of reflection lights

It is well known that the three-dimensional (3D) imaging has inherent advantages than the two-dimensional (2D) imaging. However, the existing 3D imaging methods are limited by expensive instruments or complex systems. And previous researches have shown that, owing to the fact that there exists a functional but determined relationship between the polarization information of light reflected from a target and the surface normal of it, the shape information of a 3D target can also be obtained by measuring and analyzing the polarization properties of the reflected lights. Indeed, the 3D reconstruction imaging method based on the light polarization has shown great potential in future 3D imaging applications due to its advantages of high reconstruction accuracy and simple detection equipment involved. Note that, in the process of reconstructing the 3D shape of an object based on the light polarization information, there always exists an inherent ambiguity problem, i.e., the ambiguity of the azimuth angle. To solve this problem, we propose a new method to determine each zenith angle by sorting them corresponding to all pixels in the same row of the image.