Octa-Log-Polar Fourier Transform for Image Registration

摘要：

A novel image registration algorithm based on octalog-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 be 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.

关键词： image registration octa-log-polar Fourier transform phase correlation

作者: Xian-xiang Wu Bao-long Guo Juan WANG

作者单位: Institute of Intelligent Control and Image Engineering Xidian University Xian 710071,P.R.China Telecommunication Engineering Institute Air Force Engineering University Xian 710077,P.R.China

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 601-604

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）