Visual masking and the design of magnetic resonance image acquisition

Author

Garnaoui, H.H. ; Tewfik, A.H.

Author_Institution

Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

1

fYear

1995

fDate

23-26 Oct 1995

Firstpage

625

Abstract

This paper presents novel data acquisition schemes for improving the quality of magnetic resonance images (MRI). These approaches determine the number of times that k-space (frequency domain) samples have to be acquired and averaged to form an MRI image, by taking into account the characteristics of the human visual system and the location in k-space of the data samples. They lead to dramatic reductions in imaging time (by a factor of 8 to 10) with no reduction in image quality. Alternatively, they produce higher quality imagery using the same amount of imaging time as conventional approaches

Keywords

biomedical NMR; data acquisition; data compression; frequency-domain analysis; image coding; medical image processing; visual perception; MRI; data acquisition schemes; frequency domain samples; human visual system; image quality; imaging time; k-space; magnetic resonance image acquisition design; visual masking; Data acquisition; Frequency; Humans; Image coding; Image reconstruction; Magnetic resonance; Magnetic resonance imaging; Quantization; Transform coding; Visual system;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1995. Proceedings., International Conference on

Conference_Location

Washington, DC

Print_ISBN

0-8186-7310-9

Type

conf

DOI

10.1109/ICIP.1995.531444

Filename

531444