Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval
- Autores
- Trejos, Sorayda; Barrera, John Fredy; Torroba, Roberto Daniel
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present for the first time an optical encrypting–decrypting protocol for recovering messages without speckle noise. This is a digital holographic technique using a 2f scheme to process QR codes entries. In the procedure, letters used to compose eventual messages are individually converted into a QR code, and then each QR code is divided into portions. Through a holographic technique, we store each processed portion. After filtering and repositioning, we add all processed data to create a single pack, thus simplifying the handling and recovery of multiple QR code images, representing the first multiplexing procedure applied to processed QR codes. All QR codes are recovered in a single step and in the same plane, showing neither cross-talk nor noise problems as in other methods. Experiments have been conducted using an interferometric configuration and comparisons between unprocessed and recovered QR codes have been performed, showing differences between them due to the involved processing. Recovered QR codes can be successfully scanned, thanks to their noise tolerance. Finally, the appropriate sequence in the scanning of the recovered QR codes brings a noiseless retrieved message. Additionally, to procure maximum security, the multiplexed pack could be multiplied by a digital diffuser as to encrypt it. The encrypted pack is easily decoded by multiplying the multiplexing with the complex conjugate of the diffuser. As it is a digital operation, no noise is added. Therefore, this technique is threefold robust, involving multiplexing, encryption, and the need of a sequence to retrieve the outcome.
Fil: Trejos, Sorayda. Universidad de Antioquia; Colombia
Fil: Barrera, John Fredy. Universidad de Antioquia; Colombia
Fil: Torroba, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigaciones Opticas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina - Materia
-
Qr Codes
Optical Packaging
Image Processing
Multiplexing
Digital Holography - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/11825
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Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrievalTrejos, SoraydaBarrera, John FredyTorroba, Roberto DanielQr CodesOptical PackagingImage ProcessingMultiplexingDigital Holographyhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present for the first time an optical encrypting–decrypting protocol for recovering messages without speckle noise. This is a digital holographic technique using a 2f scheme to process QR codes entries. In the procedure, letters used to compose eventual messages are individually converted into a QR code, and then each QR code is divided into portions. Through a holographic technique, we store each processed portion. After filtering and repositioning, we add all processed data to create a single pack, thus simplifying the handling and recovery of multiple QR code images, representing the first multiplexing procedure applied to processed QR codes. All QR codes are recovered in a single step and in the same plane, showing neither cross-talk nor noise problems as in other methods. Experiments have been conducted using an interferometric configuration and comparisons between unprocessed and recovered QR codes have been performed, showing differences between them due to the involved processing. Recovered QR codes can be successfully scanned, thanks to their noise tolerance. Finally, the appropriate sequence in the scanning of the recovered QR codes brings a noiseless retrieved message. Additionally, to procure maximum security, the multiplexed pack could be multiplied by a digital diffuser as to encrypt it. The encrypted pack is easily decoded by multiplying the multiplexing with the complex conjugate of the diffuser. As it is a digital operation, no noise is added. Therefore, this technique is threefold robust, involving multiplexing, encryption, and the need of a sequence to retrieve the outcome.Fil: Trejos, Sorayda. Universidad de Antioquia; ColombiaFil: Barrera, John Fredy. Universidad de Antioquia; ColombiaFil: Torroba, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigaciones Opticas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; ArgentinaIOP Publishing2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11825Trejos, Sorayda; Barrera, John Fredy; Torroba, Roberto Daniel; Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval; IOP Publishing; Journal of Optics; 17; 8; 7-2015; 1-9; 0857022040-89782040-8986enginfo:eu-repo/semantics/altIdentifier/doi/10.1088/2040-8978/17/8/085702info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2040-8978/17/8/085702/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:35Zoai:ri.conicet.gov.ar:11336/11825instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:10:35.927CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval |
title |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval |
spellingShingle |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval Trejos, Sorayda Qr Codes Optical Packaging Image Processing Multiplexing Digital Holography |
title_short |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval |
title_full |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval |
title_fullStr |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval |
title_full_unstemmed |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval |
title_sort |
Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval |
dc.creator.none.fl_str_mv |
Trejos, Sorayda Barrera, John Fredy Torroba, Roberto Daniel |
author |
Trejos, Sorayda |
author_facet |
Trejos, Sorayda Barrera, John Fredy Torroba, Roberto Daniel |
author_role |
author |
author2 |
Barrera, John Fredy Torroba, Roberto Daniel |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Qr Codes Optical Packaging Image Processing Multiplexing Digital Holography |
topic |
Qr Codes Optical Packaging Image Processing Multiplexing Digital Holography |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We present for the first time an optical encrypting–decrypting protocol for recovering messages without speckle noise. This is a digital holographic technique using a 2f scheme to process QR codes entries. In the procedure, letters used to compose eventual messages are individually converted into a QR code, and then each QR code is divided into portions. Through a holographic technique, we store each processed portion. After filtering and repositioning, we add all processed data to create a single pack, thus simplifying the handling and recovery of multiple QR code images, representing the first multiplexing procedure applied to processed QR codes. All QR codes are recovered in a single step and in the same plane, showing neither cross-talk nor noise problems as in other methods. Experiments have been conducted using an interferometric configuration and comparisons between unprocessed and recovered QR codes have been performed, showing differences between them due to the involved processing. Recovered QR codes can be successfully scanned, thanks to their noise tolerance. Finally, the appropriate sequence in the scanning of the recovered QR codes brings a noiseless retrieved message. Additionally, to procure maximum security, the multiplexed pack could be multiplied by a digital diffuser as to encrypt it. The encrypted pack is easily decoded by multiplying the multiplexing with the complex conjugate of the diffuser. As it is a digital operation, no noise is added. Therefore, this technique is threefold robust, involving multiplexing, encryption, and the need of a sequence to retrieve the outcome. Fil: Trejos, Sorayda. Universidad de Antioquia; Colombia Fil: Barrera, John Fredy. Universidad de Antioquia; Colombia Fil: Torroba, Roberto Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigaciones Opticas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina |
description |
We present for the first time an optical encrypting–decrypting protocol for recovering messages without speckle noise. This is a digital holographic technique using a 2f scheme to process QR codes entries. In the procedure, letters used to compose eventual messages are individually converted into a QR code, and then each QR code is divided into portions. Through a holographic technique, we store each processed portion. After filtering and repositioning, we add all processed data to create a single pack, thus simplifying the handling and recovery of multiple QR code images, representing the first multiplexing procedure applied to processed QR codes. All QR codes are recovered in a single step and in the same plane, showing neither cross-talk nor noise problems as in other methods. Experiments have been conducted using an interferometric configuration and comparisons between unprocessed and recovered QR codes have been performed, showing differences between them due to the involved processing. Recovered QR codes can be successfully scanned, thanks to their noise tolerance. Finally, the appropriate sequence in the scanning of the recovered QR codes brings a noiseless retrieved message. Additionally, to procure maximum security, the multiplexed pack could be multiplied by a digital diffuser as to encrypt it. The encrypted pack is easily decoded by multiplying the multiplexing with the complex conjugate of the diffuser. As it is a digital operation, no noise is added. Therefore, this technique is threefold robust, involving multiplexing, encryption, and the need of a sequence to retrieve the outcome. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/11825 Trejos, Sorayda; Barrera, John Fredy; Torroba, Roberto Daniel; Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval; IOP Publishing; Journal of Optics; 17; 8; 7-2015; 1-9; 085702 2040-8978 2040-8986 |
url |
http://hdl.handle.net/11336/11825 |
identifier_str_mv |
Trejos, Sorayda; Barrera, John Fredy; Torroba, Roberto Daniel; Optimized and secure technique for multiplexing QR code images of single characters: application to noiseless messages retrieval; IOP Publishing; Journal of Optics; 17; 8; 7-2015; 1-9; 085702 2040-8978 2040-8986 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1088/2040-8978/17/8/085702 info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2040-8978/17/8/085702/meta |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842270126035959808 |
score |
13.13397 |