15 March 2016 Optimization of the image reconstruction procedure in multi-focal photoacoustic computed tomography
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Abstract
Photoacoustic-computed microscopy (PACM) differs from conventional photoacoustic microscopy (PAM) imaging techniques in a way that thousands of optical foci are generated simultaneously using a two-dimensional microlens array, and raster-scanning these optical foci provides wide-field images. A major limitation of PACM is the slow imaging speed caused by the high power pulsed lasers and large amount of acoustic detectors. Here, we addressed this problem through compressed sensing and image inpainting. Compressed sensing minimizes the number of transducer elements used to acquire each frame, while inpainting minimizes the scanning steps. Combining these two approaches, we improved the imaging speed by sixteen times.
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Hongying Wan, Depeng Wang, Jing Meng, Liang Song, Leslie Ying, Jun Xia, "Optimization of the image reconstruction procedure in multi-focal photoacoustic computed tomography", Proc. SPIE 9708, Photons Plus Ultrasound: Imaging and Sensing 2016, 970840 (15 March 2016); doi: 10.1117/12.2215001; https://doi.org/10.1117/12.2215001
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