This paper proposes an approach for acoustic field imaging using simultaneous multi-view digital holography based on three-color digital off-axis holography. Considering spatio-chromatic multiplexing and the recording with a monochrome sensor, the numerical processing of time-sequences of holograms yields both the amplitude and phase of the acoustic field along three different directions of observation. Experimental results with an emitter at 40kHz establish the proof-of concept of the proposed multi-view imaging for acoustic fields. Tomography imaging of the acoustic field is provided with multiple recordings when rotation the transducer.
Imaging acoustic field with multicolor digital holography
Holography, Diffractive Optics, and Applications XII ; 2022 ; Online Only,China
Proc. SPIE ; 12318
2022-12-19
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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