基于全相位频谱分析的图像配准  

Image Registration Based on All Phase Spectrum Analysis

作　　者：杨爱萍[1] 侯正信[1] 王成优[1] 何凯[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《天津大学学报》2008年第12期1465-1472,共8页Journal of Tianjin University(Science and Technology)

基　　金：天津市自然科学基金(07JCYBJC13800;07JCZDJC05800);高等学校博士学科点专项科研基金(20060056051)

摘　　要：为了提高图像配准精度并简化算法,在研究传统频域配准方法的基础上,引入了全相位FFT谱分析,并将其推广到分析二维图像频谱.提出了基于全相位FFT谱分析的欠采样图像频域配准算法.配准实验结果表明,基于全相位频谱分析的图像配准精度高于传统频域配准方法,能基本实现空域配准精度,无噪声条件下对平移参数的估计精度高于空域方法.To improve the precision of image registration and simplify the algorithm,the traditional registration method in frequency domain was discussed firstly. The all phase FFT （apFFT） spectrum analysis was then introduced to the method and extended to analyze the spectrum of two-dimensional signal. And the new frequency domain registration method based on apFFT spectrum analysis was proposed for under-sampled image sequences. The registration experiment results show that the registration precision of the proposed method is superior to that of traditional frequency domain registration, which can match the standard of spatial domain registration and has better performance in shift parameter estimation under noiseless circumstances than spatial domain method.

关 键 词：图像配准 超分辨率 TAYLOR级数 全相位FFT 

分 类 号：TN911.73[电子电信—通信与信息系统]