Chau-Wai Wong

Gradient obfuscation gives a false sense of security in federated learning

USENIX Security Symposium 2023.

A Multi-Channel Ratio-of-Ratios Method for Noncontact Hand Video Based SpO(2) Monitoring Using Smartphone Cameras

IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, 16(2), 197–207.

Communication-Efficient Federated Learning via Predictive Coding

IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, 16(3), 369–380.

Federated Learning via Plurality Vote

Yue, K., Jin, R., Wong, C.-W., & Dai, H. (2022, December 7). IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, Vol. 12.

Invisible Geolocation Signature Extraction From a Single Image

IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, 17, 2598–2613.

Modeling of Adaptive Receiver Performance Using Generative Adversarial Networks

IEEE 72ND ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE (ECTC 2022), pp. 1958–1963.

Neural Tangent Kernel Empowered Federated Learning

International Conference on Machine Learning (ICML).

RxGAN: Modeling High-Speed Receiver through Generative Adversarial Networks

MLCAD '22: PROCEEDINGS OF THE 2022 ACM/IEEE 4TH WORKSHOP ON MACHINE LEARNING FOR CAD (MLCAD), pp. 167–172.

CONTACT TRACING ENHANCES THE EFFICIENCY OF COVID-19 GROUP TESTING

2021 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2021), pp. 8168–8172.

High Speed Receiver Modeling Using Generative Adversarial Networks

IEEE 30TH CONFERENCE ON ELECTRICAL PERFORMANCE OF ELECTRONIC PACKAGING AND SYSTEMS (EPEPS 2021).

Learning Your Heart Actions From Pulse: ECG Waveform Reconstruction From PPG

IEEE INTERNET OF THINGS JOURNAL, 8(23), 16734–16748.

On Microstructure Estimation Using Flatbed Scanners for Paper Surface-Based Authentication

IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, 16, 3039–3053.

Toward Effective Automated Content Analysis via Crowdsourcing

IEEE International Conference on Multimedia and Expo (ICME).

Adaptive Multi-Trace Carving for Robust Frequency Tracking in Forensic Applications

IEEE Transactions on Information Forensics and Security.

Method, apparatus, and system for object tracking sensing using broadcasting

Lai, H.-quoc D., Claffey, D. N., Chen, C., Zhang, F., Wu, C., Chau-Wai, W. O. N. G., … Liu, K. J. R. (2020, August).

On Microstructure Estimation Using Flatbed Scanners for Paper Surface Based Authentication

ArXiv Preprint ArXiv:2008.13000.

Analyzing Trend for US Immigrants' e-Health Engagement from 2008 to 2013

HEALTH COMMUNICATION, 34(11), 1259–1269.

Apparatus, systems and methods for event recognition based on a wireless signal

Xu, Q., Zhang, F., Chen, C., Wang, B., Wu, C., Zhang, H., … others. (2019, August). Google Patents.

Apparatus, systems and methods for fall-down detection based on a wireless signal

Zhang, F., Chen, C., Xu, Q., Wang, B., Wu, C., Zhang, H., … others. (2019, August). Google Patents.

ECG reconstruction via PPG: A pilot study

IEEE/EMBS International Conference on Biomedical & Health Informatics (BHI). Presented at the IEEE.

ENF Signal Extraction for Rolling-shutter Videos Using Periodic Zero-Padding

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2667–2671.

Efficient Video Data Structure and Compression Scheme for Fabric Wicking Phenomenon Studies

2019 2ND IEEE CONFERENCE ON MULTIMEDIA INFORMATION PROCESSING AND RETRIEVAL (MIPR 2019), pp. 415–418.

Factors Affecting ENF Capture in Audio

IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY, 14(2), 277–288.

Learning Your Heart Actions From Pulse: ECG Waveform Reconstruction From PPG

Zhu, Q., Tian, X., Wong, C.-W., & Wu, M. (2019, October 22). BioRxiv, Vol. 10, p. 815258.

Method, apparatus, and system for object tracking and navigation

Zhang, F., Lai, H.-Q. D., Chen, C.-I., Chau-Wai, W. O. N. G., Wang, B., Chen, C., … Liu, K. J. R. (2019, April). Google Patents.

Method, apparatus, server and system for real-time vital sign detection and monitoring

Zhang, F., Chen, C., Xu, Q., Wang, B., Wu, C., Zhang, H., … others. (2019, December). Google Patents.

Method, apparatus, server and system for vital sign detection and monitoring

Chen, C., Zhang, F., Xu, Q., Wang, B., Wu, C., Zhang, H., … others. (2019, May).

Video-Based Wetting Detection For Blended Fabrics

53rd Asilomar Conference on Signals, Systems, and Computers.

Adaptive multi-trace carving based on dynamic programming

52nd Asilomar Conference on Signals, Systems, and Computers, 1716–1720.

Analyzing trend for US immigrants’ e-Health engagement from 2008 to 2013

Health Communication.

Counterfeit detection scheme using paper surfaces and mobile cameras

Wu, M., & Wong, C.-W. (2018, November).

Encoding and decoding perceptually-quantized video content

Froehlich, J., Atkins, R., Wong, C.-W., Su, G.-M., & Yin, P. (2018, April).

Enhanced Geometric Reflection Models for Paper Surface Based Authentication

IEEE International Workshop on Information Forensics and Security (WIFS), 1–7.

Invisible geo-location signature in a single image

IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 1987–1991.

Segmenting and Understanding Publics in a Social Media Information Sharing Network: An Interactional and Dynamic Approach

International Journal of Strategic Communication, 12(1), 25–45.

Signal reshaping approximation

Su, G.-M., Wong, C.-W., Chou, H.-T., & Kottayil, N. K. A. M. B. A. L. L. U. R. (2018, September).

Counterfeit Detection Based on Unclonable Feature of Paper Using Mobile Camera

IEEE Transactions on Information Forensics and Security, 12(8), 1885–1899.

Evolving publics, evolving messages: Analyzing publics’ information sharing network in a social-mediated crisis

67th Annual Conference of International Communication Association (ICA’17).

Fitness Heart Rate Measurement Using Face Videos

IEEE International Conference on Image Processing (ICIP). Presented at the IEEE.

Micro Signal Extraction and Analytics

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).

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).

Impact Analysis of Baseband Quantizer on Coding Efficiency for HDR Video

IEEE Signal Processing Letters, 23(10), 1354–1358.

Information on the MAST ENF Power Signature Dataset

A Study on PUF characteristics for counterfeit detection

2015 IEEE International Conference on Image Processing (ICIP), 1643–1647.

Counterfeit detection using paper PUF and mobile cameras

2015 IEEE International Workshop on Information Forensics and Security (WIFS). Presented at the IEEE.

ENF Signal Induced by Power Grid

Proceedings of the 2nd ACM International Workshop on Immersive Media Experiences - ImmersiveMe '14.

ENF signal induced by power grid: A new modality for video synchronization

ACM International Workshop on Immersive Media Experiences, 13–18.

Analysis of Dyadic Approximation Error for Hybrid Video Codecs With Integer Transforms

IEEE Transactions on Image Processing, 20(10), 2780–2787.

Comments on "2-D Order-16 Integer Transforms for HD Video Coding

IEEE Transactions on Circuits and Systems for Video Technology, 21(11), 1765–1767.

Transform Kernel Selection Strategy for the H.264/AVC and Future Video Coding Standards

IEEE Transactions on Circuits and Systems for Video Technology, 21(11), 1631–1645.

Adaptive integer kernels and dyadic approximation error analysis for state-of-the-art video codecs

The Hong Kong Polytechnic University.

Transform kernel selection strategy for the H.264

Annual Summit and Conference, APSIPA, 64–70.

Information on the MAST ENF Power Signature Datasets Updated: May 2016

Hajj-Ahmad, A., Wong, C.-W., & Wu, M.