基于圆投影及直方图不变特征的图像匹配方法

Image Matching Based on the Invariant Feature of Circle Projection and Histogram

本文在对不变矩进行深入探讨的基础上提出了一种基于圆投影及直方图不变特征的图像匹配方法。通过圆投影方法进行预处理,采用圆形模板对待匹配图像进行快速搜索,然后选择三种直方图不变矩作为图像特征量进行匹配。实验表明,该方法有效解决了目标图像和匹配图像之间存在的较大旋转问题,大大减少了匹配时间。

This paper proposes an image matching method based on the invariant feature of circle projection and histogram. First, the matching candidates are selected by using circle projection which is computationally low cost, and then the round searching template is used for quick searching. Three invariant moments of image histogram are selected as the features of image in matching process. The experiment shows that the method can resist the effect of rotation of image and reduce the calculating time.