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《Journal of University of Science and Technology Beijing》 2000-06
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ens-induced Distortion Calibration Using Computer Automatic Target Recognition and Matching

LIU Weigang, HONG Yuan, Fu Xin, Wang Xianwei, Liu Zhen, CENG Xiangxi (information Engineering School, UST Beijing, Beijing 100083,China)  
A compleled method of Calibration of Lens-induced Distortion is discussed,which on a test photographing. It is described as following: take some pictures on a test target; the signs on the pictures are marked and matched by computer automatically; the parameters of lens-induced distortion can be calculated using least square procedure. The algorithm of automatic marking and matching test target is detailed, which contains several approaches: image pre-processing, image binaryzation, image segmentation, sign thinning, line linking, sign recognition, calculating coordinates, grid rebuiding and grid marching. A completed system is implemented based on this algorithm and shows its feasibility and validity in actUal usage.
【Fund】: 国家“九五”攻关课题!(No.96-919-01-01-3)
【CateGory Index】: TP391.4
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1 GE Ya-ming,LIU Tao,WANG Zong-yi (School of Automation,Harbin Engineering University, Harbin 150001,China);Video sync separator LM1881 and its application[J];应用科技;2004-09
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