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Displaying 1-6 out of 6 total
A Probabilistic Template Update Method for Tracking Facial Tissue in Thermal Infrared
Found in: Advanced Video and Signal Based Surveillance, IEEE Conference on
By Yan Zhou, Panagiotis Tsiamyrtzis, Ioannis T. Pavlidis
Issue Date:September 2008
pp. 99-106
A novel template update method is proposed for facial tissue tracking in thermal clips. It is a smoothed matte approach, which provides the location along with the rate of updating. The template is able to adapt to abrupt orientation and physiological chan...
The Segmentation of the Supraorbital Vessels in Thermal Imagery
Found in: Advanced Video and Signal Based Surveillance, IEEE Conference on
By Zhen Zhu, Panagiotis Tsiamyrtzis, Ioannis Pavlidis
Issue Date:September 2008
pp. 237-244
Thermal imaging techniques have been applied to detect and measure mental stress in polygraph screening and other applications. Mental stress is highly correlated with the activation of the corrugator muscle on the forehead. The vessels that supply
Physiology-Based Face Recognition in the Thermal Infrared Spectrum
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Pradeep Buddharaju, Ioannis T. Pavlidis, Panagiotis Tsiamyrtzis, Mike Bazakos
Issue Date:April 2007
pp. 613-626
The current dominant approaches to face recognition rely on facial characteristics that are on or over the skin. Some of these characteristics have low permanency can be altered, and their phenomenology varies significantly with environmental factors (e.g....
Coalitional Tracking in Facial Infrared Imaging and Beyond
Found in: Computer Vision and Pattern Recognition Workshop
By Jonathan Dowdall, Ioannis T. Pavlidis, Panagiotis Tsiamyrtzis
Issue Date:June 2006
pp. 134
We propose a novel facial tracking method that uses a distributed network of individual trackers whose interactions are modeled using coalitional game theory. Our tracking method maintains a high level of accuracy and can negotiate surface deformations and...
O job can you return my mojo: improving human engagement and enjoyment in routine activities
Found in: Proceedings of the 28th international conference on Human factors in computing systems (CHI '10)
By Dvijesh Shastri, Ioannis Pavlidis, Panagiotis Tsiamyrtzis, Ross Buffington, Yuichi Fujiki
Issue Date:April 2010
pp. 2491-2498
Unlike machines, we humans are prone to boredom when we perform routine activities for long periods of time. Workers' mental engagement in boring tasks diminishes, which eventually, compromises their performance. The result is a double-whammy because the w...
Making sense of accelerometer measurements in pervasive physical activity applications
Found in: Proceedings of the 27th international conference extended abstracts on Human factors in computing systems (CHI EA '09)
By Ioannis Pavlidis, Panagiotis Tsiamyrtzis, Yuichi Fujiki
Issue Date:April 2009
pp. 1-4
In the last few years, accelerometer-based entertainment and health applications have been receiving increased attention in the research and commercial worlds. The effect of accelerometer placement on different parts of the body, despite its apparent signi...