%0 Journal Article
%T Chessboard grid corners detection based on geometric symmetry<br>基于对称性特征的棋盘方格角点自动检测算法
%A TAN Xiao-jun
%A GUO Zhi-hao
%A JIANG Zhi
%A <br>谭晓军
%A 郭志豪
%A 蒋芝
%J 计算机应用
%D 2008
%I 
%X A new algorithm was proposed based on the geometric symmetry to detect grid corners. The method can be utilized in camera calibration where chessboard-like patterns were often used. Based on the observation of the geometric symmetry of such patterns, the new algorithm could be regarded as a coarse-to-fine process. Coarse detection defined the corner candidates and then precise extraction was used based on symmetry analysis. Experimental results show that the algorithm assures an efficient and accurate detection and the procedure can be carried out automatically.
%K grid corner detection
%K geometric symmetry
%K camera calibration<br>方格角点检测
%K 几何对称性
%K 摄像机标定
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=3C0FAAA12E8BE67B7A549A967C27E526&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=67E1C94EE625F186&eid=111DC5BD3401BA43&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=14