Fast photoacoustic tomography using compressed sensing for parallel interrogation of a Fabry-Perot ultrasound sensor (Conference Presentation)

The Fabry-Perot sensor is commonly read by scanning a focused laser beam across its surface and measuring the reflected light. However, this method can be time-consuming when many spatial sampling points are required. A faster alternative is to use widefield illumination and capture the reflected light with a camera, enabling the acquisition of 3D photoacoustic images with 1,310,720 spatial sampling points in just a few seconds. Imaging speed can be further enhanced by integrating this approach with compressed sensing. Preliminary findings suggest that this combination could reduce imaging times by a factor of 16, enabling sub-second 3D photoacoustic imaging.