Sparse-based multispectral image encryption via ptychography
- Authors
- Rawat, Nitin; Shi, Yishi; Kim, Byoungho; Lee, Byung-Geun
- Issue Date
- Dec-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Optical security and encryption; Photon-counting imaging; Ptychography; Coherent diffractive imaging
- Citation
- OPTICS COMMUNICATIONS, v.356, pp.296 - 305
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS COMMUNICATIONS
- Volume
- 356
- Start Page
- 296
- End Page
- 305
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/16455
- DOI
- 10.1016/j.optcom.2015.07.051
- ISSN
- 0030-4018
- Abstract
- Recently, we proposed a model of securing a ptychography-based monochromatic image encryption system via the classical Photon-counting imaging (PCI) technique. In this study, we examine a single-channel multispectral sparse-based photon-counting ptychography imaging (SMPI)-based cryptosystem. A ptychography-based cryptosystem creates a complex object wave field, which can be reconstructed by a series of diffraction intensity patterns through an aperture movement. The PCI sensor records only a few complex Bayer patterned samples that have been utilized in the decryption process. Sparse sensing and nonlinear properties of the classical PCI system, together with the scanning probes, enlarge the key space, and such a combination therefore enhances the system's security. We demonstrate that the sparse samples have adequate information for image decryption, as well as information authentication by means of optical correlation. (C) 2015 Elsevier B.V. All rights reserved.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > SCHOOL OF ELECTRICAL ENGINEERING > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.