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http://dx.doi.org/10.3745/KTSDE.2017.6.1.29

A Study on Meal Time Estimation and Eating Behavior Recognition Considering Movement Using Wrist-Worn Accelerometer with Its Frequency  

Park, Kyeong Chan (아주대학교 전자공학과)
Choe, Sun-Taag (아주대학교 전자공학과)
Cho, We-duke (아주대학교 전자공학과)
Publication Information
KIPS Transactions on Software and Data Engineering / v.6, no.1, 2017 , pp. 29-36 More about this Journal
Abstract
In this paper, we propose a method for recognizing eating behavior with almost no motion acceleration. First, by using the acceleration of gravity acting on the wrist direction, we calculate the angle between the gravity and the wrist direction. After that, detect wrist reciprocating motion when peak and vally exist in specific angle band. And then, when accumulate the number of wrist reciprocating motion occurrences are up to 10, then regard as the meal time 5 minutes before the detection time. Also, estimate the meal time only if its duration is more than 7 minutes. Using the data of 2128 minutes, which was collected from four graduate student, the result of the meal time estimation shows 95.63% accuracy.
Keywords
Eating; Accelerometer; Activity Recognition;
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