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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (8): 1475-1479    DOI: 10.3785/j.issn.1008-973X.2011.08.025
    
Wide field of view and two-dimensional position measurement
system based on linear CCD
PENG Chao-ran, ZHENG Zhen-rong, LI Hai-feng, LIU Xu
State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
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Abstract  

In order to avoid the complicated technology and low position accuracy in current interactive electronic whiteboard, a wide field of view and two-dimensional position measurement system based on linear array charge-coupled device (CCD) camera is proposed for the interactive whiteboard. This system was composed of three parts: the object to be located, CCD camera device and signal processing circuit. The position information of object on 2-D plane was obtained by the CCD camera. By the method of coordinate transformation specially designed in signal processing circuit, the precise position of the object on 2-D plane can be acquired with the process of the signal comes from CCD camera. The location distance of the system was 1 360 mm, scale of the 2-D plane was 1 574 mm×1 260 mm and precision was less than 2mm. The experimental results show that the system can reach the precision requirement of two-dimensional dynamic measurement system.

Published: 08 September 2011
CLC:  TP 212.9  
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Cite this article:

PENG Chao-ran, ZHENG Zhen-rong, LI Hai-feng, LIU Xu. Wide field of view and two-dimensional position measurement
system based on linear CCD. J4, 2011, 45(8): 1475-1479.

URL:

https://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2011.08.025     OR     https://www.zjujournals.com/eng/Y2011/V45/I8/1475


基于线阵CCD的大视场二维平面定位系统

为了克服当前交互式电子白板系统技术复杂、定位精度低等缺点,提出一种基于线阵电荷耦合器件（CCD）的大视场二维平面定位系统,该系统由待定位物体、CCD摄像装置和信号处理电路组成.CCD获取待定位物体的信息送入信号处理电路处理,通过坐标变换快速校正CCD光学系统引起的畸变,得到待定位物体的位置.系统定位距离为1 360 mm,二维定位平面大小为1 574 mm×1 260 mm,定位误差小于2 mm,定位精度高于0.2%.搭建了相应的大视场二维平面定位系统.实验结果表明,该系统可实现大角度非接触式二维物体的精确动态定位.

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