A simple and accurate matrix for model based photoacoustic imaging

Francis, K J and Mishra, P and P, Rajalakshmi and Channappayya, Sumohana and Richhariya, A (2016) A simple and accurate matrix for model based photoacoustic imaging. In: IEEE 18th International Conference on e-Health Networking, Applications and Services (Healthcom), 14-16 Sept. 2016.

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Accurate model-based methods in Photo-Acoustic Tomography (PAT) can reconstruct the image from insufficient and inaccurate measurements. Most of the models either make the simplified assumption of spherical averaging or use accurate models that have computationally burdensome implementations. We present a simple and accurate measurement matrix that is derived from the pseudo-spectral PAT model. The accuracy of the measurement matrix is first validated against the experimental PAT signal. We also compare the model against the standard k-wave measurement model and the spherical averaging model. We then highlight several reconstruction strategies based on the nature of the region of interest to further demonstrate the accuracy of the proposed measurement matrix.

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IITH Creators:
IITH CreatorsORCiD
Channappayya, SumohanaUNSPECIFIED
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Computational modeling, Transducers, Image reconstruction, Mathematical model, Propagation, Tomography
Subjects: Physics > Electricity and electronics
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 29 Nov 2016 08:33
Last Modified: 05 Mar 2018 07:21
URI: http://raiith.iith.ac.in/id/eprint/2903
Publisher URL: https://doi.org/10.1109/HealthCom.2016.7749481
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