Video-rate computational heterodyne holography
Abstract
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.
Cite
@article{arxiv.1401.5342,
title = {Video-rate computational heterodyne holography},
author = {Antoine Dillée and Romain Cancilliere and Fernando Lopes and Michael Atlan},
journal= {arXiv preprint arXiv:1401.5342},
year = {2015}
}