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Video-rate computational heterodyne holography

We present a versatile computational image rendering software of optically-acquired holograms. The reported software can process 4 Megapixel 8-bit raw frames from a sensor array acquired at a sustained rate of 80 Hz. Video-rate image rendering is achieved by streamline image processing with commodity computer graphics hardware. For time-averaged holograms acquired in off-axis optical configuration with a frequency-shifted reference beam, wide-field imaging of one tunable spectral component is permitted. This software is validated by phase-stepped hologram rendering, and non-contact monitoring of surface acoustic waves by single and dual sideband hologram rendering. It demonstrates the suitability of holography for video-rate computational laser Doppler imaging in heterodyne optical configuration.

preprint2014arXivOpen access
Antoine DilléeRomain CancilliereFernando LopesMichael Atlan
physics.optics
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Open access4 authors1 topic
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Antoine DilléeRomain CancilliereFernando LopesMichael Atlan

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