Location, situation and human behavior sensing for pervasive computing
Mobile phones and emerging wearable devices today are usually equipped with a rich set of embedded sensors such as accelerometers, magnetometers, microphones, cameras, GPS and so on. By effectively combining the measurements from such a variety of built-in sensors, mobile systems are being able to capture the current location, behavior and/or surrounding situation of a user to intelligently support one's action and decision making.
The current focus of my research is on enabling fine-grained situation recognition over the whole target area (at multiple levels of scales) by collaborative sensing with a number of sensor-enabled consumer mobile devices. For example, I am currently working to develop a building-scale participatory sensing system to estimate crowd density and ease of walking at each region in a shopping mall, an event site, etc. Each mobile device estimates the surrounding congestion level by detecting changes in user's walking speed and amplitude of ambient audio with its built-in accelerometer and microphone, respectively, and contributes the sensing results to a server to generate a congestion map of the whole building. I have also designed collaborative mobile sensing mechanisms where neighboring mobile devices locally exchange their sensor data on Wi-Fi or Bluetooth networks to enhance accuracy of location/situation recognition.
These technologies can be effectively utilized for, e.g., intelligent pedestrian navigation and adaptive lighting/air-conditioning control based on density and behavior of people in the environment. Through these research projects, I aim to enable people-centric ICT services that strongly support our daily lives.
March 2010 Bachelor of Engineering, Department of Information Science, Faculty of Engineering Science, Osaka University
March 2012 Master of Information Science and Technology, Department of Information Networking, Graduate School of Information Science and Technology, Osaka University
March 2014 Ph.D. in Information Science and Technology, Department of Information Networking, Graduate School of Information Science and Technology, Osaka University
April 2012 JSPS Research Fellow
April 2014 Specially Appointed Assistant Professor, Graduate School of Information Science and Technology, Osaka University
- E-mail ： t-higuti@ist.
- Tel ： 4557
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