一种新颖的抗旋转快速图像匹配算法

A novel algorithm for a rotation invariant template matching

提出了一种新颖的抗旋转快速粗匹配算法,该方法巧妙地引入了与运算来计算图像间的相关度,因而极大地提高了匹配速度,使匹配时间的减少呈指数级数下降,并能克服在[-20°,20°]之间的角度旋转。通过大量的仿真实验验证了本文算法的有效性,而且在基准图尺寸大小固定的前提下,随着模板尺寸的增大,匹配时间的消耗却增长十分缓慢,且匹配速度较相同情况下二层金字塔分解加速方法至少快20倍。

A novel algorithm for a rotation invariant template matching is proposed when the fluctuating scope of the rotation angle is limited within the region of [-20°,20°].The matching candidates are selected using a computationally low cost improved correlation algorithm.'AND' operation is adopted to reduce the computational cost.Therefore the algorithm improves the matching speed consumedly,.The simulation results verify the efficiency of the proposed method.Moreover,when the size of reference image is fixed,the...