Super-Resolution Remote Imaging Using Time Encoded Remote Apertures

Imaging of scenes using light or other wave phenomena is subject to the diffraction limit. The spatial profile of a wave propagating between a scene and the imaging system is distorted by diffraction resulting in a loss of resolution that is proportional with traveled distance. We show here that it...

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Bibliographic Details
Published inApplied sciences Vol. 10; no. 18; p. 6458
Main Authors Nam, Ji Hyun, Velten, Andreas
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2020
Subjects
Lasers
Light
Methods
multi-bounce
scattered light
Sensors
SPAD
super-resolution
time-of-flight
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ISSN2076-3417
2076-3417
DOI10.3390/app10186458

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Summary:Imaging of scenes using light or other wave phenomena is subject to the diffraction limit. The spatial profile of a wave propagating between a scene and the imaging system is distorted by diffraction resulting in a loss of resolution that is proportional with traveled distance. We show here that it is possible to reconstruct sparse scenes from the temporal profile of the wave-front using only one spatial pixel or a spatial average. The temporal profile of the wave is not affected by diffraction yielding an imaging method that can in theory achieve wavelength scale resolution independent of distance from the scene.
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ISSN:2076-3417
2076-3417
DOI:10.3390/app10186458