一种基于投影和多分辨谱分解的图像配准方法

Image registration method based on projection and multi-resolution spectrum decomposition

本文结合积分投影与多分辨谱分解技术,提出了一种实时图像亚像素配准算法。该算法首先引入积分投影方法将图像序列中的每帧图像转换成两个一维积分投影向量,再应用多分辨谱分解方法对两个投影向量分别进行处理,从而精确地获取图像在二维空间上的亚像素平移量。实验结果表明,本文算法具有计算量小、精度高、收敛速度快等优点,尤其适合于硬件实时实现。

A real-time image registration algorithm combining integral projection and multi-resolution spectrum decomposition technique is presented. The algorithm acquires the quantity of two-dimensional spatial translation by means of projecting each frame apart along horizontal and vertical direction and using multi-resolution spectrum decomposition approach to process the two projection vectors, respectively. The experimental results validate that the algorithm has preferable noise tolerance performance, low computational cost, high accuracy and fast convergence rate, and especially adapts to real time realization with hardware.