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MRI Image Reconstruction Using Fractional Fourier Transform
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The Reconstruction in Image processing is oriented towards modeling the degradation and applying the inverse process in order to recover the original image. Magnetic Resonance (MR) imaging and spectroscopy provide a number of practical applications for both clinical and scientific purposes. To obtain good quality images with Magnetic Resonance (MR), it is necessary to have good spatial homogeneity in the Bo field for the region of imaging. Field homogeneity is difficult to achieve, particularly for short bore magnets and higher fields. There are several post-processing techniques adopted for correcting the distortions. But these are not gives the theoretical background. The proposed technique FRFT for reconstructing the MR signal acquired under the presence of quadratic fields. The FRFT provides a precise theoretical framework to understand the distortions and to reconstruct MR data.
Keywords
Fractional Fourier Transform Magnetic Resonance Imaging, Quadratic Fields, Image Degradation, Image Reconstruction, Time-Frequency Domain.
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