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Research on Machine Vision-Based 3D Information Acquisition and Processing Techniques of Road Assets

Author: ZhangPeng
Tutor: ZhaoXiangMo
School: Chang'an University
Course: Traffic Information Engineering \u0026 Control
Keywords: Intelligent Transportation Systems Road Property Management Machine Vision Binocular measurement Road property database
CLC: TP391.41
Type: Master's thesis
Year: 2010
Downloads: 85
Quote: 3
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Abstract


Road asset information with synchronized content complete and accurate data , the preparation of the statements in the day-to-day management of the road maintenance department , data analysis , decision support is essential . Geometric dimensions , 3D coordinates and text information using machine vision technology to get a road production facilities has the advantages of small safe, efficient , and human factors , and in recent years has become one of the hot research field of intelligent transportation systems . The hardware design of the machine vision - based road production facilities in the three-dimensional information acquisition and processing system , key algorithms, database management technology is a more in-depth study , the main contents include : ( 1) design a dual - host parallel data structure acquisition system, the system acquisition environment plane array camera , the pavement line array camera , odometer , GPS receivers , ground-penetrating radar and other equipment connected to industrial control computer and collect reasonable tasks assigned to the two computers , computer between the use of Gigabit Ethernet for high - speed data transmission . (2 ) two Environmental plane array camera binocular vision measurement system constitute a road production facilities around the camera calibration camera calibration method based on planar target , and the eyes of the structural parameters of the measuring system is solved , the last based on the parallax principle , solving binocular measurement system parameters measurement Road production facility within the common vision of the left and right camera three-dimensional information . (3) according to the the Road production facilities data management needs , the use of a normalized database design methods , design of the Road production facilities database conceptual data model , physical data model and object-oriented model and in a specific database management system platform implemented on a database . Environmental testing labs and on-site environmental applications : developers run the system stable and reliable , easy to use , the road production facilities in the three-dimensional information measurement accuracy to meet the needs of practical engineering applications .

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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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