[C30^△] Prasun Datta, Chau-Wai Wong, and Min Wu, “Enabling paper-based surface authentication via digital twin and experimental verification (invited paper),” IEEE 7th International Conference on Multimedia Information Processing and Retrieval (MIPR), San Jose, CA, 7–9 Aug. 2024, under review.

[C31] Xinyan Zhao and Chau-Wai Wong, “TikTok engagement traces over time and health risky behaviors: A data linkage approach,” AEJMC Conference (Communication Theory and Methodology Division), Philadelphia, PA, 7–11 Aug. 2024, to appear.

[C32] Xinyan Zhao, Yuan Sun, Wenlin Liu, and Chau-Wai Wong, “Tailoring generative AI chatbots for multiethnic communities in disaster preparedness communication,” AEJMC Conference (Communicating Science, Health, Environment, and Risk Division), Philadelphia, PA, 7–11 Aug. 2024, to appear.

[C28] Priyank Kashyap, Andries Deroo, Dror Baron, Chau-Wai Wong, Tianfu Wu, and Paul D. Franzon, “High-speed receiver transient modeling with generative adversarial networks,” IEEE 33rd Microelectronics Design and Test Symposium (MDTS), Albany, NY, 13–15 May, 2024.

[C29] Mushfiqur Rahman, Sung Joon Maeng, Ismail Guvenc, and Chau-Wai Wong, “3D spectrum awareness for radio dynamic zones using Kriging and matrix completion,” IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN), Washington DC, 13–16 May 2024.

[I7^△] Chau-Wai Wong, Chang-Hong Fu, Mengting Xu, and Guan-Ming Su, “Analysis of coding gain due to in-loop reshaping,” IEEE Transactions on Image Processing (T-IP), minor revision. [arXiv]

[I5^△] Mushfiqur Rahman, Runze Liu, Chau-Wai Wong, and Huaiyu Dai, “Individualized deepfake detection exploiting traces due to double neural-network operations,” under preparation. [arXiv]

[I6^△] Qiang Zhu, Chau-Wai Wong, Zachary McBride Lazri, Mingliang Chen, Chang-Hong Fu, and Min Wu, “A comparative study of rPPG-based pulse rate tracking algorithms for fitness activities,” major revision. [TechRxiv]

[I2^△] Priyank Kashyap, Archit Gajjar, Yuejiang Wen, Yongjin Choi, Dror Baron, Chau-Wai Wong, Tianfu Wu, Chris Cheng, and Paul D. Franzon, “Where Does the Time Go?: A Seq2Img Modeling of High-Speed Receivers,” under preparation for journal submission.

[I3^△] Ritesh Goenka, Shu-Jie Cao, Chau-Wai Wong, Ajit Rajwade, and Dror Baron, “Contact tracing information improves the performance of group testing,” under preparation for journal submission. [arXiv] [Background video] [Background slides]

[I4^△] Mingliang Chen, Ashira Jayaweera, Chau-Wai Wong, and Min Wu, “Identity-privacy protection for facial-rPPG based smart health research,” under preparation for journal publication. [TechRxiv]

[C27] Kai Yue, Richeng Jin, Chau-Wai Wong, Dror Baron, and Huaiyu Dai, “Gradient obfuscation gives a false sense of security in federated learning,” USENIX Security Symposium, Anaheim, CA, Aug. 2023. [arXiv] [USENIX Version] [Slides] [Source Code]

[J19] Jisoo Choi, Chau-Wai Wong, Hui Su, and Min Wu, “Analysis of ENF signal extraction from videos acquired by rolling shutters,” IEEE Transactions on Information Forensics and Security (T-IFS), vol. 18, pp. 4229–4242, Jun. 2023. [IEEEXplore] [TechRxiv] [Source Code] [Dataset]

[C25] Priyank Kashyap, Prasanth P. Ravichandiran, Lee Wang, Dror Baron, Chau-Wai Wong, Tianfu Wu, and Paul D. Franzon, “Thermal estimation for 3D-ICs through generative networks,” IEEE International 3D System Integration Conference (3DIC), Cork, Ireland, 10–12 May 2023.

[C26] Priyank Kashyap, Prasanth Prabu Ravichandiran, Dror Baron, Chau-Wai Wong, Tianfu Wu, and Paul Franzon, “Generative adversarial network based adpative transmitter modeling,” IEEE 73rd Electronic Components and Technology Conference (ECTC), Orlando, FL, 30 May–2 Jun. 2023.

[J18] Shu-Jie Cao, Ritesh Goenka, Chau-Wai Wong, Ajit Rajwade, and Dror Baron, “Group testing with side information via generalized approximate message passing,” IEEE Transactions on Signal Processing, vol. 71, pp. 2366–2375, Jun. 2023. [IEEEXplore] [arXiv] [Background video] [Background slides]

[C24] Xinyan Zhao and Chau-Wai Wong, “Transformer- and lexicon-based sentiment analysis as a web service,” 73rd Annual Conference of International Communication Association (ICA’23), Computational Methods Division, Toronto, Canada, 25–29 May 2023. [Web Tool] [Slides] [Journal Preprint] [Video]

[J16] Xinyan Zhao and Chau-Wai Wong, “Automated measures of sentiment via transformer- and lexicon-based sentiment analysis (TLSA),” Journal of Computational Social Science, Nov. 2023. doi.org/10.1007/s42001-023-00233-8 [Preprint] [Conference Slides] [Video] [Web Tool] [Source Code]

[J17] Joshua Mathew, Xin Tian, Chau-Wai Wong, Simon Ho, Donald K. Milton, and Min Wu, “Remote blood oxygen estimation from videos using neural networks,” IEEE Journal of Biomedical and Health Informatics (J-BHI), 2023. [IEEEXplore] (Open Access) [arXiv] [Video] [Slides]

[J15] Kai Yue, Richeng Jin, Chau-Wai Wong, and Huaiyu Dai, “Federated learning via plurality vote,” IEEE Transactions on Neural Networks and Learning Systems, 2022. [IEEEXplore] [arXiv] [Source code]

[C23] Kai Yue, Richeng Jin, Ryan Pilgrim, Chau-Wai Wong, Dror Baron, Huaiyu Dai, “Neural tangent kernel empowered federated learning,” International Conference on Machine Learning (ICML’22), Baltimore, 17–23 July 2022. [arXiv] [PMLR] [Spotlight Slides] [Poster] [News] [Video] [Source code]

[J14] Kai Yue, Richeng Jin, Chau-Wai Wong, Huaiyu Dai, “Communication-efficient federated learning via predictive coding,” IEEE Journal of Selected Topics in Signal Processing, vol. 16, no. 3, pp. 369-380, Apr. 2022. [IEEEXplore] [arXiv] [News: Hackster.io, NC State, 中文] [Source code]

[B1] Adi Hajj-Ahmad, Chau-Wai Wong, Jisoo Choi, and Min Wu, “Power signature for multimedia forensics,” in Multimedia Forensics (part of the Advances in Computer Vision and Pattern Recognition book series), Husrev Taha Sencar, Luisa Verdoliva, Nasir Memon, Ed. Springer: Springer, 2022, pp. 235–280. [PDF]

[J13] Jisoo Choi, Chau-Wai Wong, Adi Hajj-Ahmad, Min Wu, and Yanpin Ren, “Invisible geolocation signature extraction from a single image,” IEEE Transactions on Information Forensics and Security (T-IFS), vol. 17, pp. 2598–2613, 2022. [IEEE Xplore] [TechRxiv] [Photos Acquisition Guide] [Source Code+Image Dataset] [Supplemental+GIFs of Error Surfaces]

[P11] Min Wu, Chau-Wai Wong, Qiang Zhu, Chang-Hong Fu, and Jiahao Su, “Heart rate measurement using video,” U.S. Patent 11 501 430, Nov. 15, 2022.

[C22] Timothy Holder, Mushfiqur Rahman, Emily Summers, David Roberts, Chau-Wai Wong, and Alper Bozkurt, “Contact-free simultaneous sensing of human heart rate and canine breathing rate for animal assisted interactions,” ACM International Conference on Animal–Computer Interaction, Newcastle upon Tyne, UK, 5–8 Dec. 2022. [Project Webpage] [arXiv] [Slides] [Code: GitHub, Colab]

[C21] Mahmoud Abdelkhalek, Dror Baron, and Chau-Wai Wong, “Mismatched estimation in the distance geometry problem (invited paper),” Asilomar Conference on Signals, Systems, and Computers (Asilomar’22), Pacific Grove, CA, 30 Oct.–2 Nov. 2022. [arXiv] [Slides] [Poster] [Video]

[J12] Xin Tian, Chau-Wai Wong, Sushant M. Ranadive, Min Wu, “A multi-channel ratio-of-ratios method for noncontact hand video based SpO₂ monitoring using smartphone cameras,” IEEE Journal of Selected Topics in Signal Processing, vol. 16, no. 2, pp. 197–207, Feb. 2022. [IEEEXplore] [arXiv]

[C19] Priyank Kashyap, Yongjin Choi, Sumon Dey, Dror Baron, Chau-Wai Wong, Tianfu Wu, Chris Cheng, and Paul Franzon, “Modeling of adaptive receiver performance using generative adversarial networks,” IEEE 72nd Electronic Components and Technology Conference (ECTC), San Diego, CA, 31 May–3 Jun. 2022. [IEEE Xplore] [Postprint] [Slides]

[C20] Priyank Kashyap, Archit Gajjar, Yongjin Choi, Chau-Wai Wong, Dror Baron, Tianfu Wu, Chris Cheng, and Paul Franzon, “RxGAN: Modeling high-speed receiver through generative adversarial networks,” ACM/IEEE Workshop on Machine Learning for CAD (MLCAD), Snowbird, UT, Sept. 12–13, 2022.

[J11] Qiang Zhu, Xin Tian, Chau-Wai Wong, and Min Wu, “Learning your heart actions from pulse: ECG waveform reconstruction from PPG,” IEEE Internet of Things Journal, vol. 8, no. 23, pp. 16734–16748, Dec. 2021. [IEEE Xplore] [bioRxiv] [Slides] [Poster] [Video]

[A3] John P. Efromson, Thomas J.J. Doman, Maxwell Zheng, Ron Appel, Mark Harfouche, Gregor Horstmeyer, Roarke Horstmeyer, and Chau-Wai Wong, “Machine learning controlled zebrafish assay pipeline enabled by developmental classification and a wide field-of-view gigapixel microscope,” Zebrafish Disease Models Society Conference, Durham, NC, 11–14 Oct. 2021. [Poster] [Video]

[C18] Priyank Kashyap, W. Shepherd Pitts, Dror Baron, Chau-Wai Wong, Tianfu Wu, Paul D. Franzon, “High speed receiver modeling using generative adversarial networks,” 30th IEEE Conference on Electrical Performance of Electronic Packaging and Systems (EPEPS’21), 17–20 Oct. 2021. [Postprint]

[C17] Jiele Wu, Chau-Wai Wong, Xinyan Zhao, and Xianpeng Liu, “Toward effective automated content analysis via crowdsourcing,” IEEE International Conference on Multimedia and Expo (ICME’21), Shenzhen, China, 5–9 Jul. 2021. [Slides] [Video] [arXiv] [IEEE Xplore]

[A2] John Efromson,* Thomas Jedidiah Doman, Mark Harfouche, and Chau-Wai Wong, “Automated high-throughput classification of zebrafish developmental stages using a wide field-of-view gigapixel microscope and neural network,” 16th International Zebrafish Conference, 16–22 Jun. 2021. (* MS student of ’21 Spring ECE 301 Linear Systems class.) [Poster] [Video]

[C16] Ritesh Goenka*, Shu-Jie Cao* (equal contributions), Chau-Wai Wong, Ajit Rajwade, and Dror Baron, “Contact tracing enhances the efficiency of COVID-19 group testing,” IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP’21), Toronto, Canada, 6–11 Jun. 2021. [IEEEXplore] [Slides] [Poster] [Video] [Preprint] [Supplemental] [arXiv]

[J10] Runze Liu and Chau-Wai Wong, “On microstructure estimation using flatbed scanners for paper surface based authentication,” IEEE Transactions on Information Forensics and Security (T-IFS), vol. 16, pp. 3039–3053, Apr. 2021. [IEEEXplore] [arXiv] [slides]

[A1] Ritesh Goenka, Shu-Jie Cao, Chau-Wai Wong, Ajit Rajwade, and Dror Baron, “Contact tracing enhances the efficiency of COVID-19 group testing (abstract),” 55th Annual Conference on Information Sciences and Systems (CISS’21), Baltimore, MD, 24–26 Mar. 2021. [Slides] [Video] [arXiv]

[I1] Runze Liu, Chau-Wai Wong, and Huaiyu Dai, “Modeling the nonsmoothness of modern neural networks.” [arXiv]

[J9] Qiang Zhu, Mingliang Chen, Chau-Wai Wong, and Min Wu, “Adaptive multi-trace carving for robust frequency tracking in forensic applications,” IEEE Transactions on Information Forensics and Security (T-IFS), vol. 16, pp. 1174–1189, Oct. 2020. [IEEEXplore] [arXiv] [Python API Demo Code] (released in 2023)

[P10] Min Wu and Chau-Wai Wong, “Counterfeit detection scheme using paper surfaces and mobile cameras,” U.S. Patent 10 726 256, Jul. 28, 2020.

[P8] C. Chen, F. Zhang, Q. Xu, B. Wang, C. Wu, H. Zhang, Chau-Wai Wong, D. N. Claffey, C.-I Chen, H.-Q. D. Lai, Z.-H. Wu, M. Wu, Y. Han, O. C.-L. Au, K.J. R. Liu, “Method, apparatus, server and system for vital sign detection and monitoring,” U.S. Patent 10 735 298, Aug. 4, 2020.

[P9] H.-Q. D. Lai, D. N. Claffey, C. Chen, F. Zhang, C. Wu, Chau-Wai Wong, B. Wang, O. C.-L. Au, K.J. R. Liu, “Method, apparatus, and system for object tracking and sensing using broadcasting,” U.S. Patent 10 742 475, Aug. 11, 2020.

[C15] Xianpeng Liu and Chau-Wai Wong, “Video-based wetting detection for blended fabrics,” Asilomar Conference on Signals, Systems, and Computers (Asilomar’19), Pacific Grove, CA, 3–6 Nov. 2019. [Postprint] [Poster] [Demo]

[P7^▲] Qiang Zhu, Mingliang Chen, Min Wu, Chau-Wai Wong, “Methods and apparatus for tracking weak signal traces,” Patent Application, filed Sept. 2019.

[C13] Jisoo Choi and Chau-Wai Wong, “ENF signal extraction for rolling-shutter videos using periodic zero-padding,” IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP’19), Brighton, UK, 12–17 May 2019. [IEEE Xplore] [Poster] [Postprint]

[C14] Qiang Zhu, Xin Tian, Chau-Wai Wong, and Min Wu, “ECG reconstruction via PPG: A pilot study”, IEEE International Conference on Biomedical and Health Informatics (BHI’19), Chicago, IL, 19–22 May, 2019. [IEEE Xplore] [arXiv] [Slides]

[C12] Chau-Wai Wong, “Efficient video data structure and compression scheme for fabric wicking phenomenon studies (Invited paper),” IEEE International Conference on Multimedia Information Processing and Retrieval (MIPR’19), San Jose, CA, 28–30 Mar. 2019. [IEEE Xplore] [Slides] [Postprint]

[J8] Adi Hajj-Ahmad, Chau-Wai Wong, Steven Gambino, Qiang Zhu, Miao Yu, and Min Wu, “Factors affecting ENF capture in audio,” IEEE Transactions on Information Forensics and Security (T-IFS), vol.14, no.2, pp.277–288, Feb. 2019. [IEEE Xplore] [Poster]

[P3] F. Zhang, H.-Q. D. Lai, C.-I Chen, Chau-Wai Wong, B. Wang, C. Chen, O. C.-L. Au, Y. Han, K. J. R. Liu, “Method, apparatus, and system for object tracking and navigation,” U.S. Patent 10 270 642, Apr. 23, 2019.

[P4] Q. Xu, F. Zhang, C. Chen, B. Wang, C. Wu, H. Zhang, Chau-Wai Wong, D. N. Claffey, C.-I Chen, H.-Q. D. Lai, Z.-H. Wu, M. Wu, Y. Han, O. C.-L. Au, K. J. R. Liu, “Apparatus, systems and methods for event recognition based on a wireless signal,” U.S. Patent 10 374 863, Aug. 6, 2019.

[P5] F. Zhang, C. Chen, Q. Xu, B. Wang, C. Wu, H. Zhang, Chau-Wai Wong, D. N. Claffey, C.-I Chen, H.-Q. D. Lai, Z.-H. Wu, M. Wu, Y. Han, O. C.-L. Au, K. J. R. Liu, “Apparatus, systems and methods for fall-down detection based on a wireless signal,” U.S. Patent 10 397 039, Aug. 27, 2019.

[P6] F. Zhang, C. CHEN, Q. Xu, B. Wang, C. Wu, H. Zhang, Chau-Wai Wong, D. N. Claffey, C.-I Chen, H.-Q. D. Lai, Z.-H. Wu, M. Wu, Y. Han, O. C.-L. Au, K.J. R. Liu, “Method, apparatus, server and system for real-time vital sign detection and monitoring,” U.S. Patent 10 495 725, Dec. 3, 2019.

[C11] Runze Liu, Chau-Wai Wong, and Min Wu, “Enhanced geometric reflection models for paper surface based authentication,” IEEE International Workshop on Information Forensics and Security (WIFS’18), Hong Kong, 11–13 Dec. 2018. [IEEE Xplore] [Slides] [Postprint]

[C10] Qiang Zhu, Mingliang Chen, Chau-Wai Wong, and Min Wu, “Adaptive multi-trace carving based on dynamic programming,” Asilomar Conference on Signals, Systems, and Computers (Asilomar’18), Pacific Grove, CA, 28–31 Oct. 2018. [IEEE Xplore] [Poster] [Python API Demo Code] (released in 2023)

[P2] Guan-Ming Su, Chau-Wai Wong, Hsuan-Ting Chou, and Navaneeth Kamballur-Kottayil, “Signal reshaping approximation,” U.S. Patent 10 080 026, Sept. 18, 2018.

[J7] Xinyan Zhao, Bo Yang, and Chau-Wai Wong, “Analyzing Trend for U.S. Immigrants’ E-Health Engagement from 2008 to 2013,” Health Communication, May 2018. [Taylor & Francis Online] [PDF]

[C9] Chau-Wai Wong, Adi Hajj-Ahmad, and Min Wu, “Invisible geo-location signature in a single image,” IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP’18), Calgary, Alberta, Canada, 15–20 Apr. 2018. [IEEE Xplore] [Proof] [Slides] [Postprint]

[J6] Xinyan Zhao, Mengqi Zhan, and Chau-Wai Wong, “Segmenting and understanding publics in a social media information sharing network: An interactional and dynamic approach,” International Journal of Strategic Communication, vol.12, no.8, pp.25–45, 2018. [Postprint] [Taylor & Francis Online]

[C8] Xinyan Zhao, Mengqi Zhan, Liang Ma, and Chau-Wai Wong, “We like the future more: Examining the influence of crisis response strategies on public sentiment from a big data perspective,” 103rd Annual Convention of National Communication Association (NCA’17), Dallas, TX, 16–19 Nov. 2017.

[C6] Xinyan Zhao, Mengqi Zhan, and Chau-Wai Wong, “Evolving publics, evolving messages: Analyzing publics’ information sharing network in a social-mediated crisis,” 67th Annual Conference of International Communication Association (ICA’17), San Diego, CA, 25–29 May 2017. [Journal Version] (Top 4 Student Paper Award, Public Relations Division)

[C7] Xinyan Zhao, Bo Yang, and Chau-Wai Wong, “Toward a multilevel e-health engagement model: Analyzing trend for immigrants’ e-health engagement from 2008 to 2013,” 67th Annual Conference of International Communication Association (ICA’17), San Diego, CA, 25–29 May 2017. [Journal Version]

[J5] Chau-Wai Wong and Min Wu, “Counterfeit detection based on unclonable feature of paper using mobile camera,” IEEE Transactions on Information Forensics and Security (T-IFS), vol.12, no.8, pp.1885–1899, Aug. 2017. [Postprint] [Video Demo] [IEEE Xplore] [Dataset available upon request]

[C5] Qiang Zhu, Chau-Wai Wong, Chang-Hong Fu, and Min Wu, “Fitness heart rate measurement using face videos,” IEEE International Conference on Image Processing (ICIP’17), Beijing, China, 17–20 Sep. 2017. [IEEE Xplore] [Postprint] [Slides] [Demo Videos: Elliptical Machine, Treadmill]

[J4] Chau-Wai Wong, Guan-Ming Su, and Min Wu, “Impact analysis of baseband quantizer on coding efficiency for HDR video,” IEEE Signal Processing Letters (SPL), vol.23, no.10, pp.1354–1358, Oct. 2016. [Postprint with Proofs@SigPort,@arXiv] [Poster] [Video Explanation] [Source Code] [IEEE Xplore]

[C4] Chau-Wai Wong and Min Wu, “Counterfeit detection using paper PUF and mobile cameras,” IEEE International Workshop on Information Forensics and Security (WIFS’15), Rome, Italy, 16–19 Nov. 2015. [IEEE Xplore] [Postprint] [Slides]

[C3] Chau-Wai Wong and Min Wu, “A study on PUF characteristics for counterfeit detection,” IEEE International Conference on Image Processing (ICIP’15), Quebec City, Canada, 27–30 Sep. 2015. [IEEE Xplore] [Postprint] [Poster]

[C2] Hui Su, Adi Hajj-Ahmad, Chau-Wai Wong, Ravi Garg, and Min Wu, “ENF signal induced by power grid: a new modality for video synchronization,” ACM International Workshop on Immersive Media Experiences (ImmersiveMe’14), pp.13–18, Orlando, Florida, Nov. 2014. [ACM DL]

[P1] Jan Froehlich, Robin Atkins, Chau-Wai Wong, Guan-Ming Su, and Peng Yin, “Encoding and decoding perceptually-quantized video content,” U.S. Patent 9 936 199, Apr. 3, 2018.

[J2] Chau-Wai Wong and Wan-Chi Siu, “Transform kernel selection strategy for the H.264/AVC and future video coding standards,” IEEE Transactions on Circuits and Systems for Video Technology (T-CSVT), vol.21, no.11, pp.1631–1645, Nov. 2011. [IEEE Xplore]

[J3] Chau-Wai Wong and Wan-Chi Siu, “Comments on ‘2-D order-16 integer transforms for HD video coding,’” IEEE Transactions on Circuits and Systems for Video Technology (T-CSVT), vol.21, no.11, pp.1765–1767, Nov. 2011. [IEEE Xplore]

[J1] Chau-Wai Wong and Wan-Chi Siu, “Analysis of dyadic approximation error for hybrid video codecs with integer transforms,” IEEE Transactions on Image Processing (T-IP), vol.20, no.10, pp.2780–2787, Oct. 2011. [IEEE Xplore]

[C1] Chau-Wai Wong and Wan-Chi Siu, “Transform kernel selection strategy for the H.264,” APSIPA Annual Summit and Conference (APSIPA’09), pp.64–70, Sapporo, Japan, Oct. 2009. [Postprint]