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计算机工程 ›› 2009, Vol. 35 ›› Issue (1): 180-182. doi: 10.3969/j.issn.1000-3428.2009.01.062

• 图形图像处理 • 上一篇    下一篇

基于解析小波的平移鲁棒图像配准方法

滕凯风1,张建秋1,周柏杨2   

  1. (1. 复旦大学电子工程系,上海 200433;2. 上海电控研究所,上海 200092)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-01-05 发布日期:2009-01-05

Translation Robust Image Registration Method Based on Analytic Wavelet

TENG Kai-feng1, ZHANG Jian-qiu1, ZHOU Bai-yang2   

  1. (1. Department of Electronic Engineering, Fudan University, Shanghai 200433; 2. Shanghai Electric Control Research Institute, Shanghai 200092)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-01-05 Published:2009-01-05

摘要: 为提高基于小波的配准算法对于像平移的鲁棒性,研究和分析图像平移影响此类配准算法的机理,推导小波子带相关函数在各个尺度上的关系,指出相关函数的频谱混叠是造成配准算法受平移影响的原因,提出解析小波进行图像配准的方法,分析表明基于解析小波的配准算法对于图像平移是鲁棒的。通过实例仿真验证了分析的正确性。

关键词: 图像配准, 离散小波变换, 解析小波

Abstract: This paper studies the mechanism how image translation affects image registration algorithms to improve their robustness. The relationships of the subband correlation functions among the scales are derived. The analytical result shows that the aliases of the correlation functions are mainly responsible for the translation sensitivity. An analytic-wavelet-based algorithm is proposed to solve this problem. Theoretic analysis demonstrates that the method is robust against image translation. The effectiveness of the proposed method is validated by practical data.

Key words: image registration, discrete wavelet transform, analytic wavelet

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