报告摘要：This work subverts the traditional understanding of Photoplethysmography (PPG) and opens up a new direction of the utility of PPG in commodity wearable devicesn. We demonstrate that it is possible to leverage the widely deployed PPG sensors in wrist-worn wearable devices to enable finger-level gesture recognition, which could facilitate many emerging human-computer interactions . While prior solutions in gesture recognition require dedicated devicesor leverage various signals in the environments, we introduce the first PPG-based gesture recognition system that can differentiate fine-grained hand gestures at finger level using commodity wearables.
报告人简介：Hongbo Liu is now an Assistant Professor at Department of Computer Information and Technology in Indiana University Purdue University Indianapolis since 2013. He obtained his Ph.D degree from Department Electrical and Computer Engineering at Stevens Institute of Technology under the supervision of Professor Yingying Chen. He acquired both his Master and Bachelor Degree at University of Electronic Science and Technology of China (UESTC) in 2008 and 2005. His research interests include mobile computing & intelligent systems, cyber security & privacy, and visible light communication & security.