Please use this identifier to cite or link to this item: https://doi.org/10.1038/srep15668
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dc.titleOptically secured information retrieval using two authenticated phase-only masks
dc.contributor.authorWang, X
dc.contributor.authorChen, W
dc.contributor.authorMei, S
dc.contributor.authorChen, X
dc.date.accessioned2020-09-10T01:49:59Z
dc.date.available2020-09-10T01:49:59Z
dc.date.issued2015
dc.identifier.citationWang, X, Chen, W, Mei, S, Chen, X (2015). Optically secured information retrieval using two authenticated phase-only masks. Scientific Reports 5 : 15668. ScholarBank@NUS Repository. https://doi.org/10.1038/srep15668
dc.identifier.issn20452322
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/175477
dc.description.abstractWe propose an algorithm for jointly designing two phase-only masks (POMs) that allow for the encryption and noise-free retrieval of triple images. The images required for optical retrieval are first stored in quick-response (QR) codes for noise-free retrieval and flexible readout. Two sparse POMs are respectively calculated from two different images used as references for authentication based on modified Gerchberg-Saxton algorithm (GSA) and pixel extraction, and are then used as support constraints in a modified double-phase retrieval algorithm (MPRA), together with the above-mentioned QR codes. No visible information about the target images or the reference images can be obtained from each of these authenticated POMs. This approach allows users to authenticate the two POMs used for image reconstruction without visual observation of the reference images. It also allows user to friendly access and readout with mobile devices.
dc.publisherNature Publishing Group
dc.sourceUnpaywall 20200831
dc.typeArticle
dc.contributor.departmentELECTRICAL AND COMPUTER ENGINEERING
dc.description.doi10.1038/srep15668
dc.description.sourcetitleScientific Reports
dc.description.volume5
dc.description.page15668
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