The Study of a Fast Sub-Pixel Registration Method for Remote Sensing Image

Abstract:

We put forward a fast and efficiently sub-pixel registration method for solving the classical methods’ problems of low efficiency, and use efficiently sub-images instead of original image to sub-pixel registration based on the Fourier transform phase correlation and matrix Fourier transform method. Effective sub-images are selected from the total size of the high-frequency energy after two-dimensional wavelet decomposition, then we use the phase correlation to calculate the pixel displacement and matrix Fourier transform to calculate the sub-pixel displacement. Not only the improved method is inherited the advantage of matrix Fourier transform sub-pixel registration, but also the registration speed is greatly improved. This is more applicable to massive remote sensing data. Through simulation and engineering practice, composited registration accuracy and speed, proved that the improved method is more efficient compared with the classical methods, and it’s more suitable for real remote sensing image registration.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 3877-3880
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.3877
• Online since: July 2014
• Authors: Cui Zhou*, Jing Hong Zhou, Dong Hao Fan
• Keywords: Cross Power Spectrum, Dimensional Wavelet Transform, Image Registration

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