SPEED fast magnetic resonance imaging method based on discrete cosine transform

The invention discloses a SPEED fast magnetic resonance imaging method based on discrete cosine transform. The SPEED fast magnetic resonance imaging method based on discrete cosine transform mainly includes the steps of k space data collection, zero fill Fourier reestablishment, discrete cosine tran...

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Bibliographic Details
Main Authors JIN CHAOYANG, XIANG QINGSAN
Format Patent
LanguageChinese
English
Published 16.04.2014
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The invention discloses a SPEED fast magnetic resonance imaging method based on discrete cosine transform. The SPEED fast magnetic resonance imaging method based on discrete cosine transform mainly includes the steps of k space data collection, zero fill Fourier reestablishment, discrete cosine transform, discrete cosine transform domain double-layer sparse ghost model determining, overlapped ghost separation based on LSE, discrete cosine inverse transformation, registering and summation of a plurality of ghost sub-images and image reconstruction. By means of the SPEED fast magnetic resonance imaging method, discrete cosine transform can be used for SPEED data sparse representation and improve image sparseness, and accordingly quality of a SPEED reconstructed image is improved.
Bibliography:Application Number: CN20131719667