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arXiv · 1707.08104

Computational snapshot angular-spectral lensless imaging

Peng Wang·Rajesh Menon
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Abstract

By placing a diffractive element in front of an image sensor, we are able to multiplex the spectral and angular information of a scene onto the image sensor. Reconstruction of the angular-spectral distribution is attained by first calibrating the angular-spectral response of the system and then, applying optimization-based matrix inversion. In our proof-of-concept demonstration, we imaged the 1D angle and the spectrum with resolutions of 0.15o and 6nm, respectively. The information is reconstructed from a single frame, thereby enabling snapshot functionality for video-rate imaging.

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Peng Wang, Rajesh Menon. 2017-07-25. Computational snapshot angular-spectral lensless imaging. https://arxiv.org/abs/1707.08104

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