Sirvi Märksõna "coded aperture" järgi
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listelement.badge.dso-type Kirje , listelement.badge.access-status Avatud juurdepääs , Spatial Ensemble Mapping for Coded Aperture Imaging—A Tutorial(2024) Joshi, Narmada; Xavier, Agnes Pristy Ignatius; Gopinath, Shivasubramanian; Tiwari, Vipin; Anand, VijayakumarCoded aperture imaging (CAI) is a well-established computational imaging technique consisting of two steps, namely the optical recording of an object using a coded mask, followed by a computational reconstruction using a computational algorithm using a pre-recorded point spread function (PSF). In this tutorial, we introduce a simple yet elegant technique called spatial ensemble mapping (SEM) for CAI that allows us to tune the axial resolution post-recording from a single camera shot recorded using an image sensor. The theory, simulation studies, and proof-of-concept experimental studies of SEM-CAI are presented. We believe that the developed approach will benefit microscopy, holography, and smartphone imaging systems.