A sparsity-based nonlinear reconstruction method for two-photon photoacoustic tomography
Madhu Gupta,
Rohit Kumar Mishra,
Souvik Roy
Abstract:We present a new nonlinear optimization approach for the sparse reconstruction of singlephoton absorption and two-photon absorption coefficients in the photoacoustic tomography (PAT). This framework comprises of minimizing an objective functional involving a least squares fit of the interior pressure field data corresponding to two boundary source functions, where the absorption coefficients and the photon density are related through a semi-linear elliptic partial differential equation (PDE) arising in PAT. Fu… Show more
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