منابع مشابه
Sleepiness and head movements.
Sleepiness in working life is critical and strongly associated to work related accidents. The relationship between sleepiness and head movements is poorly investigated. The pattern of head movements over time was investigated in a laboratory study with ten subjects either sleep-deprived or rested. Head movements were obtained by an inclinometer placed on the subject's forehead, and the recordin...
متن کاملAbnormal head movements.
Abnormal head movements have been studied in a variety of diseases using objective recording techniques and the data analysed with respect to the frequency content of the movement. Flopping, nodding, tic, chorea, myoclonic jerks, and most head tremors involve frequencies of approximately 2 and 4 Hz which correspond to the natural fundamental and second harmonic resonances of the head as determi...
متن کاملAmplifying Head Movements with Head-Mounted Displays
The head-mounted display (HMD) is a popular form of virtual display, due to its ability to immerse users visually in virtual environments (VEs). Unfortunately, the user’s virtual experience is compromised by the narrow field of view (FOV) it affords, which is less than half that of normal human vision. This paper explores a solution to some of the problems caused by the narrow FOV, by amplifyin...
متن کاملDriver Sleepiness Detection System Based on Eye Movements Variables
Driver sleepiness is a hazard state, which can easily lead to traffic accidents. To detect driver sleepiness in real time, a novel driver sleepiness detection system using support vector machine (SVM) based on eye movements is proposed. Eye movements data are collected using SmartEye system in a driving simulator experiment. Characteristic parameters, which include blinking frequency, gaze dire...
متن کاملHead movements and postures as pain behavior
Pain assessment can benefit from observation of pain behaviors, such as guarding or facial expression, and observational pain scales are widely used in clinical practice with nonverbal patients. However, little is known about head movements and postures in the context of pain. In this regard, we analyze videos of three publically available datasets. The BioVid dataset was recorded with healthy ...
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ژورنال
عنوان ژورنال: Industrial Health
سال: 2006
ISSN: 0019-8366,1880-8026
DOI: 10.2486/indhealth.44.564