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Fast computation of the multidimensional discrete Fourier transform and discrete backward Fourier transform on sparse grids.
Ying Jiang
Yuesheng Xu
Published in:
Math. Comput. (2014)
Keyphrases
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discrete fourier transform
fourier transform
frequency domain
signal processing
radon transform
fourier domain
frequency spectrum
polar coordinates
fourier coefficients
spatial domain
hartley transform
image analysis
image processing
feature extraction
detection method
fast fourier transform