Computed phase stereo lensless X-ray imaging
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In a recent work, we showed that computer stereo vision concepts can be transposed to X-rays. We demonstrated nanoscale three-dimensional reconstructions from a single ultrafast acquisition. In our setup, two diffraction patterns are recorded simultaneously on a single CCD camera and, after phase retrieval, two stereo images are reconstructed. A 3D representation of the sample is then computed from quantitative disparity maps, with nanometer resolution and a snapshot of 20 femtoseconds. Our demonstration was, as well, extended to phase contrast X-ray stereo imaging, where hidden 3D features of a sample were revealed. Computed phase stereo imaging will find scientific applications at X-ray free electron lasers, synchrotrons and laser-based sources, but also in fast industrial and medical 3D diagnostics. |
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• Collaboration : |
Marta Fajardo, Instituto Superior Técnico (Lisbon) Philippe Zeitoun, LOA (Palaiseau) |
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| • People : | Joana Duarte | |
| • Publications | ||
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• Fundings |
Horizon 2020 (FET Open VOXEL), ANR NanoImagine |