Cryptography of e-beam generated digital pixel holography

Wing-On Kwok; Nai-Keng Bao; Andy Hau-Ping Chan; P. W H Wong

doi:10.1109/ICSICT.2001.981519

Cryptography of e-beam generated digital pixel holography

Wing-On Kwok, Nai-Keng Bao, Andy Hau-Ping Chan, P. W H Wong

Department of Electrical Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

2 Citations (Scopus)

Abstract

The application of digital pixel hologram (DPH) as anti-counterfeiting technology to consumer products is growing important nowadays. Recently, a very high-resolution DPH has been fabricated successful using the electron beam lithography (EBL) facilities housed in Optoelectronics Research Center, City University of Hong Kong. In this paper, we propose an optical encryption technique, called Optical Transform Coding (OTC), which can be used to further enhance the anti-counterfeiting performance of DPH. Details in coding and decoding processes are described. Two DPHs of resolution 2540 dpi are fabricated to demonstrate the technique using a City University (CityU) and Hong Kong Special Administrative Region (HKSAR) logos as examples.

Original language	English
Title of host publication	2001 6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001 - Proceedings
Publisher	IEEE
Pages	468-471
Volume	1
ISBN (Print)	0780365208, 9780780365209
DOIs	https://doi.org/10.1109/ICSICT.2001.981519
Publication status	Published - 2001
Event	6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001 - Shanghai, China Duration: 22 Oct 2001 → 25 Oct 2001

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Volume	1

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Conference	6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001
Place	China
City	Shanghai
Period	22/10/01 → 25/10/01

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@inproceedings{6d80b5eca8d54b4c9713328d1795d2f3,

title = "Cryptography of e-beam generated digital pixel holography",

abstract = "The application of digital pixel hologram (DPH) as anti-counterfeiting technology to consumer products is growing important nowadays. Recently, a very high-resolution DPH has been fabricated successful using the electron beam lithography (EBL) facilities housed in Optoelectronics Research Center, City University of Hong Kong. In this paper, we propose an optical encryption technique, called Optical Transform Coding (OTC), which can be used to further enhance the anti-counterfeiting performance of DPH. Details in coding and decoding processes are described. Two DPHs of resolution 2540 dpi are fabricated to demonstrate the technique using a City University (CityU) and Hong Kong Special Administrative Region (HKSAR) logos as examples.",

author = "Wing-On Kwok and Nai-Keng Bao and Chan, {Andy Hau-Ping} and Wong, {P. W H}",

year = "2001",

doi = "10.1109/ICSICT.2001.981519",

language = "English",

isbn = "0780365208",

volume = "1",

publisher = "IEEE",

pages = "468--471",

booktitle = "2001 6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001 - Proceedings",

address = "United States",

note = "6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001 ; Conference date: 22-10-2001 Through 25-10-2001",

}

Kwok, W-O, Bao, N-K, Chan, AH-P & Wong, PWH 2001, Cryptography of e-beam generated digital pixel holography. in 2001 6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001 - Proceedings. vol. 1, 981519, IEEE, pp. 468-471, 6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001, Shanghai, China, 22/10/01. https://doi.org/10.1109/ICSICT.2001.981519

Cryptography of e-beam generated digital pixel holography. / Kwok, Wing-On; Bao, Nai-Keng; Chan, Andy Hau-Ping et al.
2001 6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001 - Proceedings. Vol. 1 IEEE, 2001. p. 468-471 981519.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Cryptography of e-beam generated digital pixel holography

AU - Kwok, Wing-On

AU - Bao, Nai-Keng

AU - Chan, Andy Hau-Ping

AU - Wong, P. W H

PY - 2001

Y1 - 2001

N2 - The application of digital pixel hologram (DPH) as anti-counterfeiting technology to consumer products is growing important nowadays. Recently, a very high-resolution DPH has been fabricated successful using the electron beam lithography (EBL) facilities housed in Optoelectronics Research Center, City University of Hong Kong. In this paper, we propose an optical encryption technique, called Optical Transform Coding (OTC), which can be used to further enhance the anti-counterfeiting performance of DPH. Details in coding and decoding processes are described. Two DPHs of resolution 2540 dpi are fabricated to demonstrate the technique using a City University (CityU) and Hong Kong Special Administrative Region (HKSAR) logos as examples.

AB - The application of digital pixel hologram (DPH) as anti-counterfeiting technology to consumer products is growing important nowadays. Recently, a very high-resolution DPH has been fabricated successful using the electron beam lithography (EBL) facilities housed in Optoelectronics Research Center, City University of Hong Kong. In this paper, we propose an optical encryption technique, called Optical Transform Coding (OTC), which can be used to further enhance the anti-counterfeiting performance of DPH. Details in coding and decoding processes are described. Two DPHs of resolution 2540 dpi are fabricated to demonstrate the technique using a City University (CityU) and Hong Kong Special Administrative Region (HKSAR) logos as examples.

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DO - 10.1109/ICSICT.2001.981519

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 0780365208

SN - 9780780365209

VL - 1

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EP - 471

BT - 2001 6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001 - Proceedings

PB - IEEE

T2 - 6th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2001

Y2 - 22 October 2001 through 25 October 2001

ER -

Cryptography of e-beam generated digital pixel holography

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