A Two Tier Recognition System for Recognizing Brushing Teeth
Josh Cherian (Texas A&M University)
Co-author: Tracy Hammond (Texas A&M University)
Previous studies have shown that failing to regularly brush one’s teeth can have a surprisingly serious health consequences, from periodontal disease to coronary heart disease to pancreatic cancer. This problem is especially worrying when caring for the elderly and/or individuals with dementia, as they often forget to or are unable to perform standard health activities such as brushing their teeth. To ensure that such individuals are correctly looked after they are placed under the supervision of caretakers or family members, simultaneously limiting their independence and placing an immense burden on their family members or caretakers. To address this problem we developed a non-invasive wearable system based on a single wrist-mounted accelerometer to accurately identify when a person brushed their teeth. We tested the efficacy of our system with a month-long in-the-wild study, and achieved an accuracy of 94\% and an F-measure of 0.82.