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Study on the Speed-measuring of Motional Object Based on Double-Matrix CCD

Author: HeJunJun
Tutor: FengWeiZhong
School: Nanjing Forestry University
Course: Measuring Technology and Instruments
Keywords: Matrix CCD Moving target detection Image processing Video velocimetry Background subtraction
CLC: TP391.41
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
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Abstract


Speed ??measurement using video detection method of moving targets is an urgent need to solve the important problems of modern traffic engineering and other fields , is a hot research field of computer vision . Theoretical studies and calculations , the moving target speed measurement technology for double-sided linear CCD CCD image sensor and area array CCD detection system works on the basis of the speed of the moving target based on the double-sided linear CCD measuring system design . Charge-coupled device (CCD) with automatic scanning , high resolution , high sensitivity , compact , accurate pixel location features in the actual testing , in particular, has a strong advantage in moving object detection . Velocimetry system than the traditional , moderate price of area array CCD image sensor , less affected by the weather and surroundings , but also has a high response speed , and you can save the image containing the moving target information in real time . Therefore , based on the area CCD video velocimetry system typically have higher reliability , practicality and speed measurement accuracy . Also a variety of illegal acts in the traffic engineering forensics image . This article from the hardware and software described in detail based on the movement of the double-sided linear CCD target speed system design , and the experimental results were analyzed . This design uses two high-speed area array CCD camera as a front-end detection device for image acquisition objective world of the moving target , and then the collected image information into the computer . Image acquisition to image processing algorithms , median filtering and background subtraction method to detect moving target , and make appropriate improvements , thereby improving the calculation speed of the entire system , and finally trigger a similar manner timing, and calculation to obtain the speed information of the moving target . The measurement system software is written in Visual C 6.0 editing environment . The experimental results verify that the algorithm is fast and high accuracy measurement algorithm . The experiments confirmed that the present system the speed of the moving target is feasible .

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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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