Abstract
We proposed a novel ultrasonic Doppler–echo visualization method that is expected to realize nondestructive visualization using an ultrasonic velocity profiler. The visualization uses information of both the Doppler velocity and echo intensity that have usually been used by the ultrasonic velocity profiler to obtain instantaneous velocity profiles. The feasibility of the method is confirmed by measurements of a rubber ball, apple, and tomato having different acoustic impedances, pulp hardnesses, shapes, and inner structures. Mathematical relations and image processing parameters were discussed to obtain images of the inner structures of test objects using the ultrasonic velocity profiler. Trial measurements of test objects elucidated that the Doppler velocity and echo intensity detect different features of the test objects. Using the Doppler velocity and echo intensity, the outlines and inner structures of the objects can be visualized.
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Yoshida, T., Tasaka, Y., Park, H.J. et al. Inner structure visualization of fresh fruits utilizing ultrasonic velocity profiler. J Vis 21, 253–265 (2018). https://doi.org/10.1007/s12650-017-0457-z
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DOI: https://doi.org/10.1007/s12650-017-0457-z