TY - GEN
T1 - Analytical reconstructions for PET and spect employing L$^{1}$-denoising
AU - Barbano, PE.
AU - Fokas, A.S.
AU - Kastis, G.A.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was partially funded by KAUST. We are also grateful to Captain V. Constantakopoulos for his generous support.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2009/7
Y1 - 2009/7
N2 - We propose an efficient, deterministic algorithm designed to reconstruct images from real Radon-Transform and Attenuated Radon-Transform data. Its input consists in a small family of recorded signals, each sampling the same composite photon or positron emission scene over a non-Gaussian, noisy channel. The reconstruction is performed by combining a novel numerical implementation of an analytical inversion formula [1] and a novel signal processing technique, inspired by the work of Tao and Candes [2] on code reconstruction. Our approach is proven to be optimal under a variety of realistic assumptions. We also indicate several medical imaging applications for which the new technology achieves high fidelity, even when dealing with real data subject to substantial non-Gaussian distortions. © 2009 IEEE.
AB - We propose an efficient, deterministic algorithm designed to reconstruct images from real Radon-Transform and Attenuated Radon-Transform data. Its input consists in a small family of recorded signals, each sampling the same composite photon or positron emission scene over a non-Gaussian, noisy channel. The reconstruction is performed by combining a novel numerical implementation of an analytical inversion formula [1] and a novel signal processing technique, inspired by the work of Tao and Candes [2] on code reconstruction. Our approach is proven to be optimal under a variety of realistic assumptions. We also indicate several medical imaging applications for which the new technology achieves high fidelity, even when dealing with real data subject to substantial non-Gaussian distortions. © 2009 IEEE.
UR - http://hdl.handle.net/10754/597569
UR - http://ieeexplore.ieee.org/document/5201187/
UR - http://www.scopus.com/inward/record.url?scp=70449597609&partnerID=8YFLogxK
U2 - 10.1109/icdsp.2009.5201187
DO - 10.1109/icdsp.2009.5201187
M3 - Conference contribution
SN - 9781424432974
BT - 2009 16th International Conference on Digital Signal Processing
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -