Title :
Acoustical method for objective food intake monitoring using a wearable sensor system
Author :
Passler, Sebastian ; Fischer, Wolf-Joachim
Author_Institution :
Fraunhofer Inst. for Photonic Microsyst., IPMS, Dresden, Germany
Abstract :
A method for non-invasive monitoring of human food intake behavior and long-term dietary protocol has been developed by the sole use of chewing and swallowing sound sensors. A hierarchical model of daily food intake is introduced for dietary protocol. Microphones were found to be more useable for this recording task than accelerometers. Hence, a novel sensor system has been built containing two microphones in a hearing aid case in order to record chewing and swallowing sounds in the ear canal and environmental noise, respectively. Records of the intake sounds of 51 participants consuming seven types of food and one drink were taken for the development of detection and classification algorithms.
Keywords :
acoustic signal processing; body sensor networks; health care; hearing aids; microphones; wearable computers; acoustical method; chewing sound sensors; classification algorithms; detection algorithms; dietary protocol; ear canal; environmental noise; hearing aid case; microphones; noninvasive monitoring; objective food intake monitoring; swallowing sound sensors; wearable sensor system; Auditory system; Ear; Irrigation; Microphones; Monitoring; Protocols; Sensors; Chewing sound; dietary protocol; food intake model;
Conference_Titel :
Pervasive Computing Technologies for Healthcare (PervasiveHealth), 2011 5th International Conference on
Conference_Location :
Dublin
Print_ISBN :
978-1-61284-767-2
