圆阵列平面靶标特征点的自动标记  

Automatic marking for feature points of circle array target

作　　者：张胜男[1] 苑玮琦[1] 

机构地区：[1]沈阳工业大学信息科学与工程学院,沈阳110870

出　　处：《计算机工程与应用》2016年第5期169-172,共4页Computer Engineering and Applications

基　　金：高校博士点专项科研基金(No.20092102110002)

摘　　要：特征点标记是实现摄像机标定的一个关键环节。针对无特殊标志和结构要求的一般圆阵列靶标,提出了一种快速的特征点标记方法。该方法利用靶标投影图像中的椭圆阵列的三个特殊特征点建立靶标坐标系,确定靶标方向,进而依据图像坐标系与靶标坐标系之间的映射关系实现对特征点的拓扑定位和标记。实验结果表明,该方法定位准确、稳定可靠,且实现简单,具有较强的通用性和很高的效率。Marking for feature points is the key task to realize camera calibration. Aiming at the circle array target without special mark and structure, a new automatic marking method is presented in this paper. This method uses three special feature points of the ellipse array in the projective image of target to establish the target coordinate system and determine the direction of target, then the topological positions of feature points are marked by mapping between the image coordinate system and the target coordinate system. Experimental results demonstrate that the proposed method works accurately and steadily, moreover, it is easy to implement and has strong generality and high efficiency.

关 键 词：平面靶标 圆阵列 自动标记 视觉检测 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]