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Omnidirectional ghost imaging system and unwrapping-free panoramic ghost imaging

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Abstract

Ghost imaging (GI) is an unconventional imaging method that reconstructs the object information via light-intensity correlation measurements. However, at present, the field of view (FOV) of this method is limited to the illumination range of light patterns. To enlarge the FOV of GI efficiently, we propose an omnidirectional GI system (OGIS) that can achieve a 360° omnidirectional FOV only via the addition of a curved mirror. The OGIS features retina-like annular patterns designed as a log-polar structure and can obtain the undistorted unwrapping-free panoramic images with uniform resolution. This research presents a new, to the best of our knowledge, perspective for the applications of GI, such as pipeline detection, a panoramic situation awareness for autonomous vehicles.

© 2021 Optical Society of America

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Data underlying the results presented in this Letter are not publicly available at this time but may be obtained from the authors upon reasonable request.

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