计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (7): 187-188.

• 图形、图像、模式识别 • 上一篇    下一篇

小波变换及相位相关在亚像素配准中的应用

黄 敏，彭国华，吕方园   

  1. 西北工业大学 理学院，西安 710129

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-03-01 发布日期:2011-03-01

Application of wavelet transform and phase correlation in sub-pixel registration

HUANG Min，PENG Guohua，LV Fangyuan   

  1. School of Science，Northwestern Polytechnical University，Xi’an 710129，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-03-01 Published:2011-03-01

PDF

摘要：

结合小波变换理论和Fourier相位相关算法，提出了一种亚像素配准算法。通过对图像进行小波分解获得低频系数，对低频系数应用相位相关进行粗配准，追踪到原图像，在原图像上进行精确配准。实验结果表明，该算法具有精度高，速度快，抗噪性能良好等优点。

关键词: 图像配准, 亚像素, 小波变换, 相位相关

Abstract: A novel sub-pixel registration algorithm is proposed by combining wavelet transform with Fourier phase correlation algorithm.Wavelet decomposition of the images is performed and low frequency wavelet coefficients are obtained.Rough registration is performed in low frequency coefficients by phase correlation algorithm.The rough registration results are traced to the original image and a precise registration is performed in the original image.Experiment results show that the proposed algorithm has the advantages of high precision，less computing cost and good stability against noise.

Key words: image registration, sub-pixel, wavelet transform, phase correlation

京ICP备13024262号-1
Copyright © 《计算机工程与应用》编辑部
技术支持：北京玛格泰克科技发展有限公司
总访问量
今日访问
在线人数