A Hand-Washing Support System Based on Center of Gravity in Hand Correction

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Bibliographic Information

Title
A Hand-Washing Support System Based on Center of Gravity in Hand Correction
Other Title
  • 手部の重心補正に基づく手洗い支援システム
Author
Nagata, Katsumi
Alias Name
  • 永田, 勝美
  • ナガタ, カツミ
University
徳島大学
Types of degree
博士（工学）
Grant ID
甲先第413号
Degree year
2021-09-21

Description

Aiming at solving the problem of recognition accuracy decrease during hand-washing in existing systems due to noise produced by hand-shaking, lighting changes, and so on, we develop a novel system. The system focuses on proper hand-washing patterns to examine whether hands are being washed correctly. By comparing videos of hand-washing captured at sinks and learning model videos, the system informs users in real time whether they are using proper hand-washing patterns. Optical flows and skin-color areas are used as data features to recognize proper hand-washing patterns. Support vector machine is used as the recognition model in this system. The hand-washing pattern recognition accuracy is improved by removing noise sources and capturing pattern characteristics by labeling and using a correction that considers the center of gravity in hand.

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