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Multimodal sound field imaging using digital holography [Invited]

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Abstract

Sound is an important invisible physical phenomenon that needs to be explained in several physical and biological processes, along with visual phenomena. For this purpose, multiparameter digital holography (DH) has been proposed to visualize both features simultaneously due to the phase and amplitude reconstruction properties of DH. In this paper, we present a brief review on sound field imaging techniques with special focus on the multiparameter imaging capability of DH for visualizing sound and visual features. The basic theory and several experimental results with very high-speed recordings are also presented to demonstrate sound field imaging for the audible range as well as in the ultrasound range.

© 2021 Optical Society of America

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Supplementary Material (6)

NameDescription
Visualization 1       Complete voice data
Visualization 2       Complete multimodal data
Visualization 3       Simultaneous audio and visual features
Visualization 4       Intensity information and phase information during glass break with slow motion
Visualization 5       Intensity information and phase information during glass break with slow motion
Visualization 6       Complete phase data

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Figures (15)

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Equations (8)

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