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Detection System Based on Image Processing Research and Design

Author: KangTao
Tutor: HuangMengTao
School: Xi'an University of Science and Technology
Course: Control Theory and Control Engineering
Keywords: Image Processing Hough transform Detect
CLC: TP274.4
Type: Master's thesis
Year: 2005
Downloads: 3384
Quote: 30
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Abstract


With the development of modern industrial automation, video-based measurement, identification and control techniques have also been developed. For example, measurements of parts production lines, product packaging, printing inspection, semiconductor chip package testing, electronic equipment manufacturing electronic components positioning, robot navigation, video surveillance, medical image processing. Previously part of these applications rely on large numbers of workers to accomplish this not only increases labor costs and management costs, and because the human eye is easily fatigued and has instability testing can not guarantee one hundred percent pass rate. There is also a considerable number of applications due to the precision of the human eye, the speed limit can not be done by hand. Therefore, an urgent need for an alternative to the practical application of the human vision machine technology appears. Computer technology, electrical engineering technology and digital image processing technology continues to improve and develop, the computer's high-speed, high-precision, high reliability and repeatability of the results of the intelligent human visual abstraction capabilities together. The generation and application of new technologies, greatly emancipated human labor and improve the automation level of production and improve the situation of human life, has a very broad application prospects. To this end, we have designed a set of video-based monitoring system for measuring exploration and research. The system uses a CCD camera and digital image processing technology to measure real-time image of the object displayed on a computer monitor while the image processing and measurement, industrial presents a new non-contact measurement method. This paper completed the following aspects of work: First, the paper establishes the system's overall research program. The system uses a high-resolution color CCD camera industry, real-time monitoring of objects to shoot pictures and video signal input frame grabbers. The role of the image processing system, the image acquisition card decodes the video signal, A / D conversion processing, the processing image data generated by the PCI bus to the computer memory. Secondly, through the comparative analysis of the commonly used image processing algorithm, using the appropriate algorithm for image processing. The idea of ??using Hough transform, design algorithm, the image-processed image inside and outside the circle center coordinates calculation. Also with the x-axis, y-axis direction of the coordinate difference, the application of the trigonometric circle the distance calculated by the method, the final result as a detection parameter to be displayed. Finally, developed by Microsoft Visual C high-level language, object-oriented programming (OPP) method of programming. Software mainly to complete the following tasks: image acquisition and display; image processing used in processing algorithms; detection algorithm for computing and results; analog digital inputs and outputs. Image acquisition and display module completes the acquisition real-time display of the image to the screen control; common image processing algorithms to the side menu functions

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