TY - GEN
T1 - Advanced model-based reconstruction algorithm for practical threedimensional photoacoustic imaging
AU - Tanji, Koichi
AU - Watanabe, Katsuhiro
AU - Fukutani, Kazuhiko
AU - Asao, Yasufumi
AU - Yagi, Takayuki
AU - Yamakawa, Makoto
AU - Shiina, Tsuyoshi
PY - 2011
Y1 - 2011
N2 - In this study, we propose an advanced model-based reconstruction algorithm for three-dimensional photoacoustic imaging. The algorithm is based on accurate forward photoacoustic models and an optimization algorithm which minimizes the square of the error between the measured acoustic signals and the signals predicted by the forward models. The forward photoacoustic models incorporate system-configuration and detector-dependent factors such as frequency response and finite size effect. A conjugate gradient-based optimization algorithm is used for reconstructing images. In addition, we make use of the symmetry and locality of the photoacoustic waves in the computations of the forward photoacoustic models in order to reduce the memory requirements and computation time in three-dimensional image reconstruction. The results show that the proposed algorithm provides high-resolution and high-quality photoacoustic images.
AB - In this study, we propose an advanced model-based reconstruction algorithm for three-dimensional photoacoustic imaging. The algorithm is based on accurate forward photoacoustic models and an optimization algorithm which minimizes the square of the error between the measured acoustic signals and the signals predicted by the forward models. The forward photoacoustic models incorporate system-configuration and detector-dependent factors such as frequency response and finite size effect. A conjugate gradient-based optimization algorithm is used for reconstructing images. In addition, we make use of the symmetry and locality of the photoacoustic waves in the computations of the forward photoacoustic models in order to reduce the memory requirements and computation time in three-dimensional image reconstruction. The results show that the proposed algorithm provides high-resolution and high-quality photoacoustic images.
KW - Forward model
KW - Model-based reconstruction
KW - Photoacoustic imaging
KW - Three-dimensional reconstruction
UR - http://www.scopus.com/inward/record.url?scp=79955497268&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79955497268&partnerID=8YFLogxK
U2 - 10.1117/12.873704
DO - 10.1117/12.873704
M3 - Conference contribution
AN - SCOPUS:79955497268
SN - 9780819484369
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Photons Plus Ultrasound
T2 - Photons Plus Ultrasound: Imaging and Sensing 2011
Y2 - 23 January 2011 through 25 January 2011
ER -