TY - GEN
T1 - Projection onto Convex Sets (POCS) method for photoacoustic tomography with a non negative constraint
AU - Salehin, S. M.Akramus
AU - Huang, Shaochun
AU - Abhayapala, Thushara D.
PY - 2013
Y1 - 2013
N2 - Photoacoustic imaging is a biomedical imaging modality capable of early cancer detection. In this paper, we proposed a novel iterative Projections Onto Convex Sets (POCS) method for improving photoacoustic reconstruction. This method aims to obtain a non negative pressure distribution satisfying the measured signals. This POCS method is performed in the Fourier Bessel space avoiding matrix inversions in the projections, speeding up projections and is capable of handling the large data sets present in photoacoustic imaging. The numerical experiments performed showed that improved reconstruction was obtained with a few iterations together with the recovery of some lost information.
AB - Photoacoustic imaging is a biomedical imaging modality capable of early cancer detection. In this paper, we proposed a novel iterative Projections Onto Convex Sets (POCS) method for improving photoacoustic reconstruction. This method aims to obtain a non negative pressure distribution satisfying the measured signals. This POCS method is performed in the Fourier Bessel space avoiding matrix inversions in the projections, speeding up projections and is capable of handling the large data sets present in photoacoustic imaging. The numerical experiments performed showed that improved reconstruction was obtained with a few iterations together with the recovery of some lost information.
KW - Convex projections
KW - Fourier Bessel series
KW - POCS
KW - photoacoustic tomography
KW - thermoacoustic
UR - http://www.scopus.com/inward/record.url?scp=84886538660&partnerID=8YFLogxK
U2 - 10.1109/EMBC.2013.6610274
DO - 10.1109/EMBC.2013.6610274
M3 - Conference contribution
SN - 9781457702167
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 3411
EP - 3414
BT - 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
T2 - 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
Y2 - 3 July 2013 through 7 July 2013
ER -