图像序列直线提取和匹配时Hough变换的应用研究

本文利用Hough变换的点线对偶性,将对图像序列中的特征直线的匹配转化为在参数空间中对特征点运动轨迹的参数估计,设计采用卡尔曼滤波器对运动目标进行初步跟踪,通过建立模板与图像的匹配相关系数判定搜索到的特征点的精确坐标。实验结果表明,该方法具有较好的跟踪结果。

Application study of Hough Transform when image array straight line is extracted and mating

A tracking lines method based on Hough Transform was proposed.Rather than tracking lines in image space directly,the method makes use of duality theory in Hough Transform in order to transform line-tracking in image space into point-tracking in Hough space.The first step is to adopt the Kalman filter to preliminarily track the motion target.Then accurate characteristic point location is searched by using build-up moulding board and image matching correlation modulus.Experiment result shows that the presented method can provide a good estimation of the lines tracking.