M.S. Defense: Carl Steinhauser, Compression and Multi-Spectral Sensing

Monday, November 28, 2022
12:00 p.m.
Kim Building, Room 2211
Maria Hoo
301 405 3681


Name:  Carl Steinhauser

Professor Min Wu (Chair)
Professor Yang Tao
Professor Chai-Wai Wong

Date/time:  Monday, November 28, 2222 at 12pm

Location: Kim Building, Room 2211

Title: Compression and Multi-Spectral Sensing for Video Based Physiological Monitoring


Remote physiological monitoring is an active area of research that extends monitoring capabilities traditionally found in a clinical setting towards the home and beyond.  In particular, there is interest in leveraging consumer electronic devices for sensing physiological characteristics such as heart rate, heart rate variability, and blood oxygen saturation. This thesis focuses on enhancing the understanding and usage of the sensing component for these applications to improve performance and quality of cardio-physiological monitoring. First, a close relationship between the color spaces used for video compression and the color projection planes commonly used for heart rate estimation is identified that results in higher compression of the physiological signal. It is proposed to adjust the color space used for video compression to better preserve the heart rate signal.The efficacy of this approach is demonstrated on real and synthetic data. Second, preliminary work with a commercial-off-the-shelf (COTS) multi-spectral sensor is presented with key observations related to the sampling rate, exposure settings, and multi-channel processing. These observations will enable better usage of the sensor for future studies and data collections that leverage the more precise spectral measurements of the sensor.


Audience: Graduate  Faculty 

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