Iterative reconstruction in diffraction tomography using nonuniform fast Fourier transform

Author

Bronstein, Michael ; Bronstein, Alexander ; Zibulevsky, Michael

Author_Institution

Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel

fYear

2002

fDate

2002

Firstpage

633

Lastpage

636

Abstract

We show an iterative reconstruction framework for diffraction ultrasound tomography. The use of broadband illumination allows the number of projections to be reduced significantly compared to straight ray tomography. The proposed algorithm makes use of fast forward non-uniform Fourier transform (NUFFT) for iterative Fourier inversion. Incorporation of total variation regularization allows noise and Gibbs phenomena to be reduced whilst preserving the edges.

Keywords

acoustic signal processing; biomedical ultrasonics; computerised tomography; fast Fourier transforms; image reconstruction; inverse problems; iterative methods; medical image processing; Gibbs phenomena; NUFFT; acoustic imaging; broadband illumination; diffracting sources; diffraction ultrasound tomography; fast forward nonuniform Fourier transform; iterative Fourier inversion; iterative reconstruction; noise; nonuniform fast Fourier transform; number of projections; straight ray tomography; total variation regularization; Acoustic diffraction; Acoustic noise; Acoustic scattering; Fast Fourier transforms; Fourier transforms; Frequency; Image reconstruction; Lighting; Tomography; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Imaging, 2002. Proceedings. 2002 IEEE International Symposium on

Print_ISBN

0-7803-7584-X

Type

conf

DOI

10.1109/ISBI.2002.1029337

Filename

1029337