Octa-Log-Polar Fourier Transform for Image Registration

被引：3

作者：

Wu, Xian-xiang ^{[1
]}

Guo, Bao-long ^{[1
]}

Wang, Juan ^{[2
]}

机构：

[1] Xidian Univ, Inst Intelligent Control & Image Engn, Xian 710071, Peoples R China

[2] Air Force Engn Univ, Telecommun Engn Inst, Xian 710077, Peoples R China

来源：

FIFTH INTERNATIONAL CONFERENCE ON INFORMATION ASSURANCE AND SECURITY, VOL 1, PROCEEDINGS | 2009年

关键词：

image registration; octa-log-polar Fourier transform; phase correlation;

D O I：

10.1109/IAS.2009.285

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

A novel image registration algorithm based on octa-log-polar Fourier transform (OLPFT) for estimating large translations, rotations. and scalings in images is presented. The OLPFT, which is calculated at points distributed at non-linear increased concentric octagons, approximated log-polar Fourier representations of images accurately. And it can he calculated fast by utilizing the Fourier separability property and fractional FFT. Using the log-polar Fourier representations and cross-power spectrum method, we can estimate the rotations and scalings in images, and obtain translations later.

引用

页码：601 / +

页数：2

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