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Research on Spatial Information Acquisition in 3-D Body Scanning System

Author: GaoZuo
Tutor: LiDeHua
School: Huazhong University of Science and Technology
Course: Pattern Recognition and Intelligent Systems
Keywords: 3D scanning system 3D Information Acquisition Visual hull Silhouette edge 3D data compression
CLC: TP391.41
Type: Master's thesis
Year: 2007
Downloads: 42
Quote: 0
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Abstract


3D color scanning system is a collection of modern optical and electrical technology for the integration of complex devices , new technology involving mechanical , optical , electronic , computer vision , digital image processing , computer graphics , soft machine engineering disciplines . Huazhong University of Science and Technology, Institute of Artificial Intelligence, long-term adherence to the theory of the three-dimensional digital access to information , in-depth research , and successful in a number of areas to achieve specific application . The thesis is based on this background expand from . The paper presents a three - dimensional body scanning system based on non - contact measurement , through software processing visual equipment to capture the shape of the object to obtain three-dimensional geometric information of the surface of the human body . It can automatically obtain the coordinates of the object surface point in three-dimensional space and color information in order to establish a three-dimensional model of the surface of the human body , and the data is saved as a standard data interface file has a certain value . The paper focuses on several key issues in the three - dimensional body scanning system , including the analysis of the system overall technical solution , system software , scan the object space information acquisition, as well as spatial data compression . Article first summarizes the system of the existing three-dimensional information access to technology at home and abroad of the status quo of the research , technical points and trends ; Second , given the design objectives and programs of the three-dimensional body scanning system (3DLCS300B type ) , focusing on analysis of the system software structure, combined with software diagram summarizes the various software modules of the three-dimensional body scanning system , and focus on analysis of the acquisition , pre-processing and three-dimensional space access to information . In this paper, the idea of three-dimensional information acquisition method based visual hull (Visual Hull) , for simple hardware systems , multiple images of a shot by processing different angles to real objects , and then get the body surface of the three-dimensional information 3D scanning system . The article focuses on the principle and implementation of the method . Finally, according to the characteristics of the body of the three-dimensional data acquired by the type of the above 3DLCS300B proposes the corresponding three - dimensional data compression method.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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