Dr Wen CHEN

Assistant Professor

Department of Electronic and Information Engineering

The Hong Kong Polytechnic University

Hung Hom, Kowloon, Hong Kong

陳文博士,香港九龍紅磡香港理工大學電子及資訊工程學系

Email:  owen.chen@polyu.edu.hk

Tel.:  +852-27666646;     Fax:  +852-23628439

Homepage:  http://www.eie.polyu.edu.hk/~wenchen

 

Biography

B. Eng. (CQU, 2003), M. Eng. (CQU, 2006), Ph.D. (NUS, 2010).

Wen CHEN received Ph.D. degree in National University of Singapore. He has conducted extensive research work as Research Associate and Research Fellow in the Department of Electrical and Computer Engineering, National University of Singapore. He was a visiting scholar in Rowland Institute, Harvard University, U.S.A. from March 2013 to June 2013.

He is currently an Assistant Professor in the Department of Electronic and Information Engineering, The Hong Kong Polytechnic University.  

He has published more than 90 international journal and conference papers, and some publications have been highlighted or reported, such as AIP press release. He fulfils many professional services, such as an Editorial Board Member for “Scientific Reports” Journal, an Associate Editor for “IEEE Access” Journal and an active reviewer for many important journals in his research field. He was recognized as an outstanding reviewer for OSA publishing (Optical Society of America) in Aug. 2016. He actively attended academic activities, and was awarded to attend Global Young Scientists Summit @ Singapore One-North 2014.

 

Current Research Interests

Imaging systems, single-pixel imaging, coherent diffractive imaging, optoelectronic systems, phase retrieval, digital holography, computer-generated hologram, microscopy, information optics, optical encryption and optical security, signal/image processing, optical display, big data for imaging, machine/deep learning for imaging, and compressed sensing for imaging.

 

 

Vacancies

If you would like to pursue your MPhil degree or Ph.D. degree in my research group in The Hong Kong Polytechnic University, please do not hesitate to contact me via email (send your email to owen.chen@polyu.edu.hk). Please attach your CV, also including your academic transcripts and English result (TOEFL or IELTS).

 

You are also welcome to contact me about “Hong Kong PhD Fellowship”. Please send your CV to me (send your email to owen.chen@polyu.edu.hk), also including your academic transcripts and English result (TOEFL or IELTS).

 

There are vacancies for Research Assistant/Research Associate/Research Fellow/Postdoctoral, please contact via email (owen.chen@polyu.edu.hk). Only shortlisted candidates will be informed.

 

There is a full studentship for a current EIE MSc student in my research group, please contact Dr CHEN Wen via email (owen.chen@polyu.edu.hk). Please attach your CV, English language result and transcripts.

 

Financial supports are also available for another current EIE MSc student to conduct research in my lab, please contact Dr CHEN Wen via email (owen.chen@polyu.edu.hk). Please attach your CV, English language result and transcripts.

There are several Student Assistant Positions for PolyU Undergraduate Students in my research group, and financial supports are available. Please contact Dr CHEN Wen via email (owen.chen@polyu.edu.hk). Please attach your brief CV and PolyU transcript.

 

 

 

Undergraduate and Graduate Courses

(1) EIE581, Optical Wavelength Division Multiplexing Networks (about “optical fiber communications”)

(2) EIE6207, Theoretical Fundamental and Engineering Approaches for Intelligent Signal and Information Processing

(3) EIE4114, Digital Forensics for Crime Investigation

(4) ENG2003, Information Technology

 

Manuscripts In Preparation or Submitted

[1] Lina Zhou, Yin Xiao, and Wen Chen, Deep learning enabled progressive imaging in murky water. 2018.

[2] Yin Xiao, Lina Zhou, and Wen Chen, Single-pixel imaging using simplified Hadamard spectrum measurement with single-step coefficient retrieval. 2018.

 

Refereed Journal Papers

Google Scholar:  https://scholar.google.com.hk/citations?user=udd2xqYAAAAJ&hl=en

ResearcherID:  http://www.researcherid.com/rid/F-5431-2012

ORCID:  http://orcid.org/0000-0002-3258-7278

[1] Wen Chen, “Hierarchically optical double-image correlation using 3D phase retrieval algorithm in fractional Fourier transform domain,” Optics Communications, 427, 374 – 381, 2018.

[2] Zhun Wei, Wen Chen, and Xudong Chen, “Frequency subspace amplitude flow for phase retrieval,” Journal of the Optical Society of America A, 35 (6), 1074 – 1080, 2018.

[3] Wen Chen, “3D Gerchberg-Saxton optical correlation,” IEEE Photonics Journal, 10(2), 7800409 (9pp), 2018.

[4] Wen Chen, “Computer-generated hologram marked by correlated photon imaging,” Applied Optics, 57(5), 1196 – 1201, 2018.

[5] Wen Chen, “Virtually optical information verification with a hierarchical structure,” Optical Engineering, 57(1), 010502 (4pp), 2018.  

[6] Wen Chen, “Computer-generated hologram using binary phase with an aperture,” Applied Optics, 56, 9126 – 9131, 2017.

[7] Zhun Wei, Wen Chen, Tiantian Yin, and Xudong Chen, “Robust phase retrieval of complex-valued object in phase modulation by hybrid Wirtinger flow method,” Optical Engineering, 56, 093106 (7pp), 2017.

[8] Wen Chen, “Ghost identification based on single-pixel imaging in big data environment,” Optics Express, 25, 16509 – 16516, 2017.

[9] Zhun Wei, Wen Chen, Cheng-Wei Qiu, and Xudong Chen, “Conjugate gradient method for phase retrieval based on the Wirtinger derivative,” Journal of the Optical Society of America A, 34, 708 – 712, 2017. 

[10] Wen Chen, “Optical cryptosystem based on single-pixel encoding using the modified Gerchberg–Saxton algorithm with a cascaded structure,” Journal of the Optical Society of America A, 33, 2305 – 2311, 2016.

[11] Wen Chen, “Correlated-photon secured imaging by iterative phase retrieval using axially-varying distances,” IEEE Photonics Technology Letters, 28, 1932 – 1935, 2016.

[12] B. Javidi, A. Carnicer, M. Yamaguchi, T. Nomura, E. Pérez-Cabré, M. S Millán, N. K Nishchal, R. Torroba, J. F. Barrera, W. He, X. Peng, A. Stern, Y. Rivenson, A Alfalou, C Brosseau, C. Guo, J. T Sheridan, G. Situ, M. Naruse, T. Matsumoto, I. Juvells, E. Tajahuerce, J. Lancis, Wen Chen, X. Chen, P. W H Pinkse, A. P Mosk, and A. Markman, “Roadmap on optical security,” Journal of Optics (IOP Publishing), 18, 083001 (39pp), 2016. (Invited).

[13] Wen Chen, “Optical data security system using phase extraction scheme via single-pixel detection,” IEEE Photonics Journal, 8, 7801507 (7pp), 2016.

[14] Wen Chen, “Single-shot imaging without reference wave using binary intensity pattern for optically-secured-based correlation,” IEEE Photonics Journal, 8, 6900209 (9pp), 2016.

[15] Wen Chen, “Modulating phase via rotation for optical encoding based on correlated photon imaging,” IEEE Photonics Technology Letters, 28, 540 – 543, 2016.

[16] Wen Chen, “Optical multiple-image encryption using three-dimensional space,” IEEE Photonics Journal, 8, 6900608 (8pp), 2016.

[17] Wen Chen and Xudong Chen, “Digital holography-secured scheme using only binary phase or amplitude as ciphertext,” Applied Optics, 55, 6740 – 6746, 2016.

[18] Wen Chen, “Multiple-wavelength double random phase encoding with CCD-plane sparse-phase multiplexing for optical information verification,” Applied Optics, 54, 10711 – 10716, 2015.

[19] Xiaogang Wang, Wen Chen, Shengtao Mei, and Xudong Chen, “Optically secured information retrieval using two authenticated phase-only masks,” Scientific Reports, 5, 15668 (9pp), 2015.

[20] Wen Chen and Xudong Chen, “Grayscale object authentication based on ghost imaging using binary signals,” EPL (Europhysics Letters), 110, 44002 (5pp), 2015.

[21] Wen Chen and Xudong Chen, “Optical authentication via photon-synthesized ghost imaging using optical nonlinear correlation,” Optics and Lasers in Engineering, 73, 123 – 127, 2015.

[22] Xiaogang Wang, Wen Chen, and Xudong Chen, “Optical encryption and authentication based on phase retrieval and sparsity constraints,” IEEE Photonics Journal, 7, 7800310 (10pp), 2015.

[23] Xiaogang Wang, Wen Chen, and Xudong Chen, “Optical information authentication using compressed double-random-phase-encoded images and quick-response codes,” Optics Express 23, 6239 – 6253, 2015.

[24] Wen Chen and Xudong Chen, “Ghost imaging using labyrinth-like phase modulation patterns for high-efficiency and high-security optical encryption,” EPL (Europhysics Letters), 109, 14001 (5pp), 2015. (Editor’s Choice Article, and selected as Highlights of 2015).

[25] Xiaogang Wang, Wen Chen, and Xudong Chen, “Optical image hiding using double-phase retrieval algorithm based on nonlinear cryptosystem under vortex beam illumination,” Journal of Optics (IOP Publishing), 17, 035704 (6pp), 2015.

[26] Wen Chen, Xiaogang Wang, and Xudong Chen, “Security-enhanced phase encryption assisted by nonlinear optical correlation via sparse phase,” Journal of Optics (IOP Publishing), 17, 035702 (12pp), 2015.

[27] Wen Chen and Xudong Chen, “Marked ghost imaging,” Applied Physics Letters, 104, 251109 (5pp), 2014. (Highlighted and Reported by AIP Press Release).

[28] Wen Chen and Xudong Chen, “Optical color-image verification using multiple-pinhole phase retrieval,” Journal of Optics (IOP Publishing), 16, 075403 (12pp), 2014.

[29] Xiaogang Wang, Wen Chen, and Xudong Chen, “Optical binary image encryption using aperture-key and dual wavelengths,” Optics Express, 22, 28077 – 28085, 2014.

[30] Xiaogang Wang, Wen Chen, and Xudong Chen, “Fractional Fourier domain optical image hiding using phase retrieval algorithm based on iterative nonlinear double random phase encoding,” Optics Express, 22, 22981 – 22995, 2014.

[31] Wen Chen and Xudong Chen, “Arbitrarily modulated beam for phase-only optical encryption,” Journal of Optics (IOP Publishing), 16, 105402 (10pp), 2014.

[32] Wen Chen and Xudong Chen, “Iterative phase retrieval for simultaneously generating two phase-only masks with silhouette removal in interference-based optical encryption,” Optics Communications, 331, 133 – 138, 2014.

[33] Wen Chen, Bahram Javidi, and Xudong Chen, “Advances in optical security systems,” Advances in Optics and Photonics, 6, 120 155, 2014. (OSA Publishing, Invited Review Article). One of the 10 most cited articles published in “Advances in Optics and Photonics” over the past two years, 12 April 2016.

[34] Wen Chen and Xudong Chen, “Double random phase encoding using phase reservation and compression,” Journal of Optics (IOP Publishing), 16, 025402 (7pp), 2014. Selected by Editors as "Highlights of 2014".

[35] Wen Chen and Xudong Chen, “Optical multiple-image authentication based on modified Gerchberg-Saxton algorithm with random sampling,” Optics Communications, 318, 128 – 132, 2014.

[36] Wen Chen and Xudong Chen, “Ghost imaging for three-dimensional optical security,” Applied Physics Letters, 103, 221106 (4pp), 2013.

[37] Wen Chen, Guohai Situ, and Xudong Chen, “High-flexibility optical encryption via aperture movement,” Optics Express, 21, 24680 – 24691, 2013.

[38] Wen Chen and Xudong Chen, “Object authentication in computational ghost imaging with the realizations less than 5% of Nyquist limit,” Optics Letters, 38, 546 – 548, 2013.

[39] Wen Chen and Xudong Chen, “Optical image encryption based on multiple-region plaintext and phase retrieval in three-dimensional space,” Optics and Lasers in Engineering, 51, 128 – 133, 2013.

[40] Wen Chen and Xudong Chen, “Security-enhanced interference-based optical image encryption,” Optics Communications, 286, 123 – 129, 2013.

[41] Wen Chen, Xudong Chen, Arun Anand, and Bahram Javidi, “Optical encryption using multiple intensity samplings in the axial domain,” Journal of the Optical Society of America A, 30, 806 – 812, 2013.

[42] Wen Chen and Xudong Chen, “Optical cryptography network topology based on 2D-to-3D conversion and phase-mask extraction,” Optics and Lasers in Engineering, 51, 410 – 416, 2013.

[43] Wen Chen, Xudong Chen, Adrian Stern, and Bahram Javidi, “Phase-modulated optical system with sparse representation for information encoding and authentication,” IEEE Photonics Journal, 5, 6900113 (13pp), 2013.

[44] Wen Chen and Xudong Chen, “Interference-based optical image encryption using three-dimensional phase retrieval,” Applied Optics, 51, 6076 – 6083, 2012.

[45] Wen Chen, Xudong Chen, and Colin J. R. Sheppard, “Optical image encryption based on phase retrieval combined with three-dimensional particle-like distribution,” Journal of Optics (IOP Publishing), 14, 075402 (9pp), 2012.

[46] Wen Chen and Xudong Chen, “Focal-plane detection and object reconstruction in the noninterferometric phase imaging,” Journal of the Optical Society of America A, 29, 585 – 592, 2012.

[47] Wen Chen, Xudong Chen, and Colin J. R. Sheppard, “Optical color-image encryption and synthesis using coherent diffractive imaging in the Fresnel domain,” Optics Express, 20, 3853 – 3865, 2012.

[48] Wen Chen and Xudong Chen, “Structured-illumination-based lensless diffractive imaging and its application to optical image encryption,” Optics Communications, 285, 2044 – 2047, 2012.

[49] Wen Chen, Xudong Chen, and Colin J. R. Sheppard, “Optical image encryption based on coherent diffractive imaging using multiple wavelengths,” Optics Communications, 285, 225–228, 2012.

[50] Wen Chen and Xudong Chen, “Optical multiple-image encryption based on multiplane phase retrieval and interference,” Journal of Optics (IOP Publishing), 13,115401 (8pp), 2011.

[51] Wen Chen and Xudong Chen, “Optical image encryption using multilevel Arnold transform and noninterferometric imaging,” Optical Engineering, 50(11), 117001 (5pp), 2011.

[52] Wen Chen, Xudong Chen, and Colin J. R. Sheppard, “Optical double-image cryptography based on diffractive imaging with a laterally-translated phase grating,” Applied Optics, 50, 5750 – 5757, 2011.

[53] Wen Chen and Xudong Chen, “Optical asymmetric cryptography using a three-dimensional space-based model,” Journal of Optics (IOP Publishing), 13, 075404 (7pp), 2011.

[54] Wen Chen and Xudong Chen, “Optical cryptography topology based on a three-dimensional particle-like distribution and diffractive imaging,” Optics Express, 19, 9008 – 9019, 2011.

[55] Wen Chen and Xudong Chen, “Optical color image encryption based on an asymmetric cryptosystem in the Fresnel domain,” Optics Communications, 284, 3913–3917, 2011.

[56] Wen Chen and Xudong Chen, “Quantitative phase retrieval of complex-valued specimens based on noninterferometric imaging,” Applied Optics, 50, 2008 – 2015, 2011.

[57] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Retrieval of complex object fields in coherent diffractive imaging using position shift of a phase mask,” Optical Engineering, 50(8), 080502 (3pp), 2011.

[58] Chenggen Quan, Wen Chen, and Cho Jui Tay, “Numerical reconstruction in in-line digital holography by translation of CCD position and gradient operator method,” Optics Communications, 284, 2767 – 2770, 2011.

[59] Wen Chen and Xudong Chen, “Space-based optical image encryption,” Optics Express, 18, 27095 – 27104, 2010.

[60] Wen Chen, Xudong Chen, and Colin J. R. Sheppard, “Optical image encryption based on diffractive imaging,” Optics Letters, 35, 3817 – 3819, 2010.

[61] Wen Chen and Xudong Chen, “Quantitative phase retrieval of a complex-valued object using variable function orders in the fractional Fourier domain,” Optics Express, 18, 13536 – 13541, 2010.

[62] Cho Jui Tay, Chenggen Quan, Wen Chen and Yu Fu, “Color image encryption based on interference and virtual optics,” Optics and Laser Technology, 42, 409 – 415, 2010.

[63] Chenggen Quan, Wen Chen, and Cho Jui Tay, “Phase-retrieval techniques in fringe-projection profilometry,” Optics and Lasers in Engineering, 48, 235 – 243, 2010.

[64] Cho Jui Tay, Chenggen Quan, and Wen Chen, “Dynamic measurement by digital holographic interferometry based on complex phasor method,” Optics and Laser Technology, 41, 172 – 180, 2009.

[65] Chenggen Quan, Cho Jui Tay, and Wen Chen, “Determination of displacement derivative in digital holographic interferometry,” Optics Communications, 282, 809 – 815, 2009.

[66] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Optical color image encryption based on Arnold transform and interference method,” Optics Communications, 282, 3680 – 3685, 2009.

[67] Wen Chen, Chenggen Quan, Cho Jui Tay, and Yu Fu, “Quantitative detection and compensation of phase-shifting error in two-step phase-shifting digital holography,” Optics Communications, 282, 2800 – 2805, 2009.

[68] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Extended depth of focus in a particle field measurement using a single-shot digital hologram,” Applied Physics Letters, 95, 201103 (3pp), 2009.

[69] Chenggen Quan, Wen Chen, and Cho Jui Tay, “Shape measurement by multi-illumination method in digital holographic interferometry,” Optics Communications, 281, 3957 – 3964, 2008.

[70] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Retrieval of instantaneous frequency from digital holograms based on adaptive windows,” Optical Engineering, 47, 065801 (6pp), 2008.

[71] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Measurement of curvature and twist of a deformed object using digital holography,” Applied Optics, 47, 2874 – 2881, 2008.

 

Conference and Symposium

 

[1] Wen Chen, "Novel single-pixel imaging methods and their applications," 2018 SPIE/COS Photonics Asia, October 11 – 13 2018, Beijing International Convention Center, Beijing, China. (Invited Speaker)

[2] Yin Xiao and Wen Chen, "Fast and high-quality object reconstruction based on Fourier spectrum acquisition in single-pixel imaging," Pacific Rim Conference on Lasers and Electro-Optics (CLEO-Pacific Rim), 29 July – 3 August 2018, Hong Kong.

[3] Wen Chen, "Three-dimensional optical correlation based on binary computer-generated hologram," 27th IEEE International Symposium on Industrial Electronics (ISIE 2018), IEEE Xplore, June 13 – 15 2018, Cairns, Australia. (Invited Speaker)

[4] Wen Chen, "Novel applications using ghost imaging principles," International Conference on Optical and Photonic Engineering (icOPEN2018), SPIE, May 8 – 11 2018, Shanghai, China. (Invited Speaker)

[5] Wen Chen, "Optical encoding system using sparse pinhole arrays for optical information processing," Progress In Electromagnetics Research Symposium, IEEE Xplore, November 19 – 22 2017, Singapore. (Session Organizer and Session Chair)

[6] Yin Xiao and Wen Chen, "Image reconstruction using single-pixel color ghost imaging," Progress In Electromagnetics Research Symposium, IEEE Xplore, November 19 – 22 2017, Singapore.

[7] Wen Chen, "Multiple-stage pure phase encoding with biometric information," 2017 International Conference on Optical Instrument and Technology (OIT2017), SPIE, October 28 – 30 2017, Beijing International Convention Center, Beijing, China. (Invited Speaker)

[8] Yin Xiao and Wen Chen, "Information retrieval based on single-pixel optical imaging with quick-response code," 2017 9th International Conference on Graphic and Image Processing (ICGIP2017), SPIE, October 14 – 16 2017, Qingdao, China. (Excellent Oral Presentation Certificate)

[9] Wen Chen, "Several new applications based on single-pixel imaging via photon correlation," CLEO-PR, OECC and PGC 2017, July 31 – August 4 2017, Photonics @ SG, Singapore Sands Expo and Convention Centre, Singapore. (Invited Speaker)

[10] Wen Chen, "Hybrid optical encoding structures for two-layer optical information authentication," IEEE International Conference on Opto-Electronic Information Processing (ICOIP 2017), July 7 – 9 2017, Singapore. (Excellent Oral Presentation Certificate, and Technical Committee Member)

[11] Wen Chen, "Optical decoded-image correlation using simultaneous compression of input image and the phase in the recording plane," IEEE TENCON 2016, November 22 – 25 2016, Singapore.  (Session Chair Wen Chen)

[12] Wen Chen, "Single-pixel imaging and its applications," International Conference on Optical and Photonic Engineering, September 26 – 30 2016, Chengdu, China. (Awarded “Excellent Oral Presentation”)

[13] Wen Chen, "Computer-generated hologram authentication via optical correlation," IEEE International Conference on Industrial Informatics (IEEE INDIN2016), July 18 – 21 2016, Poitiers, France. (Invited Speaker)

[14] Wen Chen and Xudong Chen, "Optical information encryption and authentication based on ghost imaging," International Symposium on 3D Imaging, Metrology, and Data Security, September 26 – 29 2015, Shenzhen, China. (Invited Speaker, Wen Chen)

[15] Wen Chen and Xudong Chen, "Ghost-secured imaging via pixel modulation of one phase-only mask," SPIE conference, International Conference on Optical and Photonic Engineering (ICOPEN2015), April 14 – 16 2015, Singapore.

[16] Wen Chen and Xudong Chen, “Single-pixel optical imaging with compressed reference intensity patterns,” SPIE conference, Proceedings of SPIE 9302, 93020O (2014), International Conference on Experimental Mechanics (icEM2014), 15 – 17 Nov. 2014, Singapore. (Session Chair Wen Chen)

[17] Wen Chen and Xudong Chen, “Image authentication via sparsity-based phase-shifting digital holography,” SPIE conference, Proceedings of SPIE 9443, 94432X (2014), 6th International Conference on Graphic and Image Processing (ICGIP 2014), Oct. 24 – 26, 2014, Beijing, China.

[18] Wen Chen and Xudong Chen, “Optical encryption based on 3-D sphere and phase retrieval in gyrator transform domain,” IEEE TENCON 2013, October 22 – 25 2013, Xi'an, China.

[19] Wen Chen and Xudong Chen, “Noninterferometric phase imaging based on multiple-exposure recordings,” International Conference Focus on Microscopy, 1 April 2012 – 4 April 2012, Singapore.

[20] Wen Chen and Xudong Chen, “Optical cryptography using a three-dimensional space-based strategy and phase-shifting digital holography,” International Conference on Advanced Technology in Experimental Mechanics’11 (ATEM’11), 19 September, 2011 – 21 September, 2011, Kobe, Japan.

[21] Chenggen Quan, Wen Chen, and Cho Jui Tay, “Spatial and temporal phase retrieval techniques in digital holography,” International Conference on Experimental Mechanics 2010 (ICEM 2010), 29 November, 2010 – 1 December, 2010, Kuala Lumpur, Malaysia.

[22] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Optical image encryption with a bit-plane separation method in phase-shifting digital holography,” Proceedings of SPIE 7522, 752222 (2009).

[23] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Phase retrieval in digital holographic interferometry based on complex phasor and short time Fourier transform,” Proceedings of SPIE 7155, 71551I (2008). (Wen Chen was awarded one of the best student presentations).

[24] Wen Chen, Chenggen Quan, and Cho Jui Tay, “Profiling of an object using a time-frequency analysis method in digital holographic interferometry,” Proceedings of SPIE 7375, 73754S (2008).

[25] Chenggen Quan, Wen Chen, and Cho Jui Tay, “Determination of curvature and twist of deformed object by digital holographic interferometry,” Proceedings of SPIE 7375, 73753H (2008).

 

Book Chapters

[1] Wen Chen, “Single-Pixel Optical Information Encoding and Authentication” (Book Chapter Title), in the book of “Advanced Secure Optical Image Processing for Communications”, IOP (Institute of Physics) Publishing, UK, Published in April 2018. (Invited)

 

Four Key Works for Hong Kong RAE2020

[1] Wen Chen, Guohai Situ, and Xudong Chen, “High-flexibility optical encryption via aperture movement,” Optics Express, vol. 21, 24680–24691 (2013).

 

Information security with optical means needs to achieve a specified level of flexibility. Interferometric imaging was usually applied in the field of optical information security, and system flexibility was restricted. This work studied single-path non-interferometric imaging for optical encryption, and a new research perspective has been opened up for optically securing information. This work significantly enhanced system flexibility, and provided a channel to fully control information assignment and information authentication. This work has been heavily cited by other original research papers.

 

[2] Wen Chen and Xudong Chen, “Ghost imaging for three-dimensional optical security,” Applied Physics Letters, vol. 103, 221106 (2013).

 

Ghost encoding needs to achieve a specified level of security, such as for data transmission and storage. Prior to this work, ghost encoding was limited to 2D dimension, and system security was not high. This work studied, for the first time, 3D optical security using ghost principles. A series of particle-like points in 3D space significantly enhanced system security. A new research perspective has been opened up for ghost encoding, and its application domain was significantly enlarged. This work has been heavily cited by other original research papers.

[3] Wen Chen and Xudong Chen, “Marked ghost imaging,” Applied Physics Letters, vol. 104, 251109 (2014).

 

Ghost encoding has a great potential for information security. This interdisciplinary work introduced the watermarking concept into ghost encoding for the first time, and studied how the targeted information and multiple hidden marks can be simultaneously retrieved by using only one reference intensity sequence in ghost encoding system. The unique characteristic established in this interdisciplinary work provided a great potential for copyright protection and secure transmission, and high security can be fully achieved. This interdisciplinary work opened up a new research perspective for ghost-based information encoding, and has been heavily cited by other original research papers.

[4] Wen Chen, “Ghost identification based on single-pixel imaging in big data environment,” Optics Express, vol. 25, 16509–16516 (2017).

 

Single-pixel optical encoding has attracted much attention in the field of information security. Prior to this work, new concepts or technologies in other areas were not fully explored. This interdisciplinary work studied a big data environment, for the first time, for single-pixel optical encoding. Many series of one-dimensional ciphertexts were recorded to form a big data environment, and system security and flexibility were significantly enhanced. The new finding in this interdisciplinary work opened up a new research perspective for single-pixel optical information encoding, and it is strongly believed that more applications and relevant studies can be inspired.

 

 

Other Academic Activities

[1] Wen Chen, “Fundamental Optics for Information Security,” CityU-PolyU Joint Seminar, The Hong Kong Polytechnic University, Hong Kong, 7 Dec. 2018 (Tentative).

[2] Wen Chen, “Several novel optical imaging methods and their applications,” A Talk, Shandong University, Qingdao Campus, China, 25 June 2018.

[3] Wen Chen, “Optoelectronic imaging and its applications,” Invited Talk, The Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (SMART) Centre, Singapore,17 August 2015.

[4] Wen Chen, “Information Secured by Optics,” 2014 East Lake International Forum for Outstanding Overseas Young Scholars, Invited by School of Optical and Electronic Information in Huazhong University of Science and Technology (HUST), Wuhan City, China, Dec. 28th – 30th, 2014.

 

Ph.D. Dissertation

Wen Chen, “Development of Spatial and Temporal Phase Evaluation Techniques in Digital Holography,” Ph.D. Dissertation, National University of Singapore, 2010. Advisors: Dr. Chenggen Quan and Dr. Cho Jui Tay.

 

Research Projects

Dr. Wen CHEN research group’s work is financially supported from The Hong Kong Polytechnic University; Hong Kong Research Grants Council; National Natural Science Foundation of China (NSFC); Shenzhen Science and Technology Innovation Commission.

 

Professional Services

Editorial service

Editorial Board Member, Scientific Reports, 2016 – Present. (2017 impact factor: 4.122)

Associate Editor, IEEE Access, 2016 – Present. (2017 impact factor: 3.557)

A reviewer for the following international journals

Optics Letters (OSA);  Applied Physics Letters;  Scientific Reports;  Applied Optics (OSA);  Optics Express (OSA);  Biomedical Optics Express (OSA);  Journal of the Optical Society of America A (OSA);  Journal of the Optical Society of America B (OSA);  Optica (OSA);  Optica Applicata;  Spectroscopy Letters;  Optics and Lasers in Engineering (Elsevier);  Optics and Laser Technology (Elsevier);  Optics Communications (Elsevier);  Journal of Optics (IOP Publishing, UK);  Optical Engineering (SPIE);  Journal of Biomedical Optics (SPIE);  Journal of Electronic Imaging (SPIE);  Journal of Applied Remote Sensing (SPIE);  Journal of Modern Optics;  Measurement Science and Technology;  Chinese Optics Letters;  Progress In Electromagnetics Research C;  Signal Processing (Elsevier);  Optik (Elsevier);  Signal Processing: Image Communication (Elsevier);  International Journal of Electronics and Communications (Elsevier);  IEEE Transactions on Information Forensics & Security;  IEEE Signal Processing Letters;  IEEE Photonics Technology Letters;  IEEE Photonics Journal;  IEEE/OSA Journal of Lightwave Technology;  IEEE Access;  IEEE Transactions on Computational Imaging;   Applied Physics B: Lasers and Optics;   Optical and Quantum Electronics;   Science Bulletin;   IEEE Transactions on Industrial Informatics;   Physical Chemistry Chemical Physics;   Advanced Photonics;   ACS Photonics;   OSA Continuum;    EPL (Europhysics Letters).

 

Services for international conferences/symposiums/workshops

Technical Committee Member, 2017 International Conference on Opto-Electronic Information Processing, Jul. 2017.

Session Organizer and Session Chair, Session--“Optical Image/Signal Processing and Applications”, Progress In Electromagnetics Research Symposium, PIERS, Singapore, Nov. 2017.

Technical Program Subcommittee Co-Chair, “Imaging, Display and Storage Technologies,” Pacific Rim Conference on Lasers and Electro-Optics (CLEO-Pacific Rim), 29 July 2018 – 3 August 2018, Hong Kong.

Other services

Proposal Reviewer for Shenzhen Science and Technology Innovation Commission in 2017

Proposal Reviewer for National Natural Science Foundation of China (NSFC) in 2017, 2018

Service award/recognition

CHEN Wen was certified as one of the most active reviewers for OSA publishing (Optical Society of America) in 2012; Recognized as an outstanding reviewer in 2015 for “Optics Communications” (Elsevier), “Optics and Laser Technology” (Elsevier) and “Optics and Lasers in Engineering” (Elsevier).

CHEN Wen was recognized as one of 22 outstanding reviewers for OSA publishing (Optical Society of America) in 2016. (It has been mentioned in the OSA Award Letter that the OSA received over 18000 submissions each year).

https://www.osapublishing.org/submit/review/outstandingreviewers.cfm

 

CHEN Wen was awarded an outstanding reviewer for “Journal of Optics” (IOP Publishing) for Year 2016.

Membership of Academic Societies

 

Member, The Optical Society (OSA), Since 2017

 

 

 

Website updated on 26 September 2018