A new reconstruction algorithm for photoacoustic imaging based on geometric information of ROI

In this paper, we propose an acoustic signal synthesizing algorithm called two-step reconstruction algorithm based on the geometrical information of ROI(region of interest). Even though we apply the same conventional reconstruction algorithm, we can obtain the better image quality of ROI by using the proposed two-step reconstruction algorithm. We comment on the mathematical minor mistakes in applying Residue theorem for the derivation of Green's function in famous paper to which many researchers are still referring. A mathematical k-wave simulation is used for comparing the image quality of ROI with or without two-step reconstruction algorithm. From the simulation results, we prove the effectiveness of proposed acoustic signal synthesizing of two-step reconstruction algorithm.

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