Research On Low Texture Target 3D Reconstruction Algorithm Integrating Polarization And Light Field Information

The 3d reconstruction algorithm of low texture object based on polarization information solves the problem of missing matching points in the traditional reconstruction process of low texture object,but the problem of fuzzy azimuth Angle of incident plane always exists,which has received widespread attention from researchers.At present,most of the researches in this field at home and abroad still focus on the prior information of rough depth maps,but the 3d maps reconstructed by this method have serious noise,so it is very difficult to obtain highprecision 3D reconstruction results.To solve the above problems,this paper proposes a low-texture target 3D reconstruction algorithm that integrates polarization-light field information.By integrating the light field information collected from the target surface with the polarization information of reflected light,the image information dimension is effectively increased,and then the ambiguity of azimuth Angle of incident plane is removed.Firstly,the rotation matrix is estimated from two light field images with polarization information,and the problem is transformed into the least square problem.Secondly,the corresponding relationship model between polarization degree and normal direction of low texture object surface is derived by Fresnel reflection equation,and then three-dimensional reconstruction is carried out.In view of the noise generated in the reconstruction process,several images are superimposed to remove the noise,and the experimental results show that this method can significantly reduce the influence caused in the reconstruction process.Compared with the traditional multi-scale Shapelets method,the proposed method has some advantages in reconstruction accuracy.In addition,we analyzed the optical field to obtain the influence of parameters on the effect of reconstruction precision,through the equivalent aperture parameters and detection range is from two aspects of qualitative and quantitative analysis respectively,through the design and building experiment platform,the observation object reconstruction and precision of the noise changes,further improve the quality of the reconstruction of the light field-polarization method.