Learned weight factors in the universal backprojection formula reduce average reconstruction error by about half for sparse and limited-view photoacoustic tomography in simulated tests.
A family of inversion formulas in Thermoacoustic Tomography
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abstract
We present a family of closed form inversion formulas in thermoacoustic tomography in the case of a constant sound speed. The formulas are presented in both time-domain and frequency-domain versions. As special cases, they imply most of the previously known filtered backprojection type formulas.
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Learned backprojection for sparse and limited view photoacoustic tomography
Learned weight factors in the universal backprojection formula reduce average reconstruction error by about half for sparse and limited-view photoacoustic tomography in simulated tests.