6533b86ffe1ef96bd12ce597
RESEARCH PRODUCT
Optical encryption with compressive ghost imaging
Pedro AndrésVicente DuránJesús LancisEnrique TajahuerceVictor Torres-companyPere Clementesubject
Signal processingLight intensityCompressed sensingbusiness.industryComputer scienceComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONImage processingReconstruction algorithmIterative reconstructionGhost imagingEncryptionbusinessAlgorithmdescription
Ghost imaging (GI) is a novel technique where the optical information of an object is encoded in the correlation of the intensity fluctuations of a light source. Computational GI (CGI) is a variant of the standard procedure that uses a single bucket detector. Recently, we proposed to use CGI to encrypt and transmit the object information to a remote party [1]. The optical encryption scheme shows compressibility and robustness to eavesdropping attacks. The reconstruction algorithm provides a relative low quality images and requires high acquisitions times. A procedure to overcome such limitations is to combine CGI with compressive sampling (CS), an advanced signal processing theory that exploits the redundancy in the structure of most usual images.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-05-01 | 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) |