Fractional Fourier Transform Image Analysis

Abstract:

As a generalized form of the Fourier transform, fractional Fourier transform (FRFT) ,which is integrated the signal in time domain and frequency domain, is a new time-frequency analysis. From the simulation point of view to image the distribution of energy in the fractional Fourier domain, the amplitude and phase characteristics, simulation results show that any fractional Fourier domain, can reflect the image of the space-frequency domain characteristics, with the order, the image The distribution of the space-frequency domain characteristics will change. The image of the fractional Fourier transform amplitude and phase reconstruction of the image information with the original image also showed some important conclusions for the fractional Fourier transform applied to image recognition and edge detection is of great significance.

• Periodical: Applied Mechanics and Materials (Volumes 198-199)
• Pages: 288-293
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.198-199.288
• Online since: September 2012
• Authors: Hui Yan Xu
• Keywords: Feature Extraction, Fractional Fourier Transform (FrFT), Image Processing, Time-Frequency Characteristics

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