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The Lumen Information Acquisition, Measurement and Control Technique

Author: WangShiTao
Tutor: HanBaoJun
School: Xi'an University of Electronic Science and Technology
Course: Detection Technology and Automation
Keywords: System Design Access to information Vision lighting Image processing
CLC: TP274
Type: Master's thesis
Year: 2010
Downloads: 25
Quote: 1
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Abstract


Starting from the actual application of the access to information technology , the principle of access to information on existing bore -depth analysis of the performance limitations of the method and detection equipment on the basis of in-depth study the bore the complex case image acquisition and processing, image measurement and control technology, developed technology , proved its rationality and effectiveness . For the measurement of the special nature of the environment , research and design of a high degree of automation of the measuring equipment to solve the contradiction between the bore measurement precision and large dynamic range . Bore access to information and applications based on the diameter of the inner diameter of the measurement and volume measurement method . Design a serial communication sub-module is responsible for the transmission of information between the upper and lower computer : the collection and transmission of the measured parameters , the transmission of control commands . Designed according to the principle of stepper motor drive , stepper motor control circuit . View of the the imaging environment particularity and complexity , and to obtain high image quality requirements , it must be by means of artificial lighting system , lighting design model of the visual scene , and the design of fitness for a particular environment image acquisition circular LED photoelectric imaging illumination source practice has proved that the light source to ensure measurement needs to obtain higher quality images in a special complex environment . Get the characteristics of the image and the special requirements of the measurement for the measuring system , to study the corresponding image preprocessing , image segmentation scheme and algorithm , and several algorithms to make a comparison . Established through in-depth analysis and experimental research on a variety of image segmentation algorithm , an adaptation of the measurement system partitioning scheme - Otsu method segmentation scheme . Positioned in a straight line , the edge of a straight line using the Hough transform detection ruler , then ruler positioning experiments show good results . In software design, the modular design concept , the precise positioning of several special control , and improve the accuracy of the measurement system .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system
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