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Based On Multiple Images Of The Space Curve Structure Reconstruction

Posted on:2010-01-19Degree:MasterType:Thesis
Country:ChinaCandidate:Y LiuFull Text:PDF
GTID:2208360275464328Subject:Computer technology
Abstract/Summary:PDF Full Text Request
In recent years,with extensive use of digital cameras,imaging quality of a substantial increase,growing at the same time prices More low-cost,image processing and pattern recognition coupled with rapid advances in technology,the use of a digital camera as a sensorPieces of three-dimensional data acquisition technology to become the most promising a three-dimensional measuring technique.Three-dimensional reconstruction of computer vision technology,computer vision research is an important subject areas, contributes to the achievement of three-dimensional non-contact measurement and rapid modeling.In this paper,starting from the engineering practice,trying to close in photogrammetry and computer vision theory a number of cutting-edge results,the study used a digital camera,free access to the scene of shooting multiple frames of digital image,to obtain three-dimensional objects measured information.High efficiency of the technology will help automate the production process improvement in the level of three-dimensional modeling is an important direction of development.This article covers the main camera in a given parameter,the reverse of the camera filming the meeting and three-point position and orientation coordinates;multi-frame digital image in the characteristic curves of the extraction and matching;camera pose and intrinsic parameters are known curve in case of three-dimensional structure of the reconstruction.The film received a number of free images,this paper through the construction of measurement matrix and measurement matrix decomposition algorithm for matrix factorization of projective space of camera movement and object shape,and then solving a Euclidean reconstruction of the conditions to meet the non-singular matrix,up to Euclidean space of camera movement and object shape.To determine the camera position and posture,the use of image feature extraction Snake curve,using the corresponding points between images of the epipolar constraint is established between the different images of the same name on the curve of the corresponding point of the relationship between research and the realization of a number of image-based three-dimensional curve of the structure of the reconstruction algorithm.
Keywords/Search Tags:3D Recostruction, Camera Calibration, Camera'pose, Point Correspondence, Active Contour Model, 3D Curve Recostruction
PDF Full Text Request
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