Octa-Log-Polar Fourier Transform for Image Registration

• Published in: 2009 Fifth International Conference on Information Assurance and Security Vol. 1; pp. 601 - 604
• Main Authors: Xian-xiang Wu, Bao-long Guo, Juan Wang
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.08.2009
• Subjects: Discrete Fourier transforms; Estimation theory; Fourier transforms; Image processing; Image registration; Information security; Intelligent control; Interpolation; Machine vision; octa-log-polar Fourier transform; phase correlation; Phase detection

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 r...