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Optimized Design And Positioning Analysis Of 3D Compound Eye Camera Model

Posted on:2019-11-01Degree:MasterType:Thesis
Country:ChinaCandidate:H J WuFull Text:PDF
GTID:2392330596465677Subject:Mathematics
Abstract/Summary:PDF Full Text Request
In order to construct 3D complex scenes quickly and accurately and achieve accurate target positioning,this paper presents a new design scheme for 3D compound eye camera model.Based on the need of arranging uniformity and imaging efficiency of spherical eyelet,a compound eye camera model with a spherical structure as a support is designed,and a multi-ocular visual positioning model suitable for compound eye structures is established.The experimental data is used to analyze the feasibility and optimization of the model.The main research contents are as follows:(1)This paper introduces the principle of sub-eye optical imaging and binocular stereo vision positioning model.Based on the conversion relationship between the pixel coordinates of the target point and the world coordinates,a multi-channel mathematical positioning model is established.The camera calibration determines internal and external parameter matrices,then the model solution and the error estimation are made by using the least squares correlation algorithm based on regeneration weights.(2)Based on the design criteria of uniform distribution of eyelets and efficient use of the field of the view,this paper constructs a C600 spherical model of a 3D compound eye camera model and optimizes it.Based on the geometric features of the C600 molecular structure and the optical imaging principle of the sub-eye,the constraints are converted into mathematical models,and the parameters are solved by using a multi-objective particle swarm algorithm,so as to obtain an optimized camera model.(3)The optimal solution value of the parameter is obtained by the multi-objective particle swarm algorithm,and thus determines the position of the sub-eye glasses on the C600 model of the 3D compound camera and the optimization model.Optimization results indicate that the overall homogeneity of the 92 lens compound eye camera models is better,and is higher than the uniformity of the micro-lens arrangement based on the regular icosahedron.The92-lens-camera model satisfies the requirement of uniform arrangement,eliminates the duplication of imaging overlap areas between adjacent sub-eyes,achieves efficient coverage of the object space,and can obtain the specific coordinates of all the lattices,so that the desired sub-eyes can be quickly captured and shot in practical applications,so as to achieve a highly efficient effect.(4)This paper presents a simulation and positioning analysis of the compound camera model,and adjusts the internal and external parameters of the lens according to the sub-eye calibration experiment at different positions.Through the multi-position positioning experiment,the error between the measurement length and the actual size of the object is within 0.873%.The experimental results show that the compound eye camera model has high accuracy in the three-dimensional coordinate measurement of the target point,and can accurately achieve the three-dimensional reconstruction of small objects,further verify the rationality of the compound eye camera model and the feasibility and efficiency of the actual measurement.
Keywords/Search Tags:Compound eyes, target positioning, sub-eye calibration, C60 spherical model, multi-objective particle swarm algorithm
PDF Full Text Request
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