Determining both sound speed and internal source in thermo- and photo-acoustic tomography

TL;DR

This paper establishes conditions under which both the sound speed and internal source can be uniquely recovered in thermo- and photo-acoustic tomography, enhancing the understanding of these imaging modalities.

Contribution

It provides new theoretical conditions for simultaneously recovering sound speed and sources in thermo- and photo-acoustic tomography.

Findings

Sufficient conditions for joint recovery of sound speed and source.

Improved understanding of inverse problems in thermo- and photo-acoustic imaging.

Theoretical framework for enhanced image reconstruction.

Abstract

This paper concerns thermoacoustic tomography and photoacoustic tomography, two couple-physics imaging modalities that attempt to combine the high resolution of ultrasound and the high contrast capabilities of electromagnetic waves. We give sufficient conditions to recover both the sound speed of the medium being probed and the source.