【摘要】 首先利用线性整数插值和降采样图像傅里叶变换原理,证明了文中方法的正确性;然后给出了亚像素配准过程,并对误差进行理论分析;最后通过多光谱图像和人工图像的配准对该方法进行实验验证.实验结果表明:文中方法具有亚像素级的配准精度.更多还原

【Abstract】 Theoretical deduction is given to show the correctness of our approach based on the principle of integer interpolation and Fourier transform for under-sampled image. Subpixel registration algorithm and its error analysis for under-sampled image are presented. Experiment results of multi-spectral and simulated images show that our scheme has overcome the drawback of classic phase correlation, good results have been obtained for subpixel translation estimation of images of different spectral bands.更多还原