Feasibility Study of the Detection of Driver's Drowsiness from Head Motion

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  • 頭部の動きに着目した運転時における覚醒度低下検出の可能性
  • トウブ ノ ウゴキ ニ チャクモク シタ ウンテンジ ニ オケル カクセイド テイカ ケンシュツ ノ カノウセイ

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Abstract

It is said that the worst cause of death by car accident is drowsy driving. Many studies have been devoted to detect drivers' drowsiness from their behavior or biological signals such as electrocardiogram and arterial pulse wave to prevent drowsy driving. However, there has been few research focused on the relation between drivers' head motion and their drowsiness. In this study, we aimed to clarify the relationship between head driver's motion and their drowsiness. Two acceleration sensors were equipped to subject's head and car seat. Subjects were asked to drive a car under two conditions, i.e. in awakening state and drowsy state after over 20 hours sleep deprivation. The difference between the acceleration of head and car seat were calculated, and the results show that head motion decreases according to driver's drowsiness.

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