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Zoomed-in region of the reconstructed initial pressure distributions for β = 10−1 assuming (a) a tuned constant sound speed of 1.500 mm/μs and (b) the sound speed distribution obtained by parameterized JR for Q = 2. The arrows point to structures that are in focus in the JR image, but not in the tuned constant sound speed image. Results are shown in a grayscale window of [0, 6000].
