1. A method for soft-field tomography reconstruction, the method performed by a processor, the method comprising: establishing, using one or more processors, an initial estimate of a property distribution for internal properties of a human body using soft-field tomography data acquired by a soft-field tomography system; using the one or more processors to implement a first reconstruction process, that uses a sensitivity matrix, to reconstruct an estimate of an actual property distribution including estimated property distribution values within one or more regions of interest; using the one or more processors to implement a second reconstruction process different than the first reconstruction process to further reconstruct the estimate of the actual property distribution to update a shape of a boundary of the one or more regions of interest in the human body, wherein a solution from the first reconstruction process is used as an initial estimate in the second reconstruction process, the solution from the first reconstruction process including the estimated property distribution values for the one or more regions of interest; and using the one or more processors to implement a third reconstruction process different from both the first and second reconstruction processes to perform additional reconstruction.