DETERMINATION THE LEVELS OF SUBJECTIVE AND OBSERVER RATING OF DROWSINESS AND THEIR ASSOCIATIONS WITH FACIAL DYNAMICCHANGES

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POURSADEGHIYAN MOHSEN; MAZLOUMI ADEL; NASL SARAJI GEBRAEIL; NIKNEZHAD ALI REZA; AKBARZADEH ARASH; EBRAHIMI MOHAMMAD HOSSEIN

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Journal: Iranian Journal of Public Health Year:2017 | Volume:46 | Issue:1 Page(s): 93-102

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Title

DETERMINATION THE LEVELS OF SUBJECTIVE AND OBSERVER RATING OF DROWSINESS AND THEIR ASSOCIATIONS WITH FACIAL DYNAMICCHANGES

Author(s)

Keywords

DRIVER DROWSINESS

FACIAL DYNAMIC CHANGES

ORD

KSS

Abstract

Background: We determined the levels of subjective and observer drowsiness and facial dynamics changes. Methods: This experimental study was done in the virtual reality laboratory of Khaje-Nasir Toosi University of Tech-nology in 2015. Facial dynamics changes like changes in eyes, mouth and eyebrows were surveyed on twenty-five driv-ers in 2015byKSS (Karolinska Sleepiness Scale) and ORD (Observer Rating of Drowsiness). ANOVA Repeated Measure and MANOVA Repeated Measure tests were used for data analysis. Also, neural network and Viola-Jones were used to detect facial characteristics. PERCLOS (Percentage of Eye Closure), blink frequency and blink duration were inspected for eyes parameters. The size of open mouth during drowsiness was inspected for mouth parameter. During the inspection of eyebrow, the number 50 denoted eyebrow in normal position. For eyebrows above the nor-mal position, a range of 50 to 55 was specified; in addition, 45-50 was found as the specified range for eyebrows under normal position. Results: Descriptive statistics of the dynamic changes in mouth and eyes illustrated that during the driving process, the level of sleepiness increased as well as changes of eyes and mouth. However, statistical findings during car driving revealed that dynamic changes in eyebrows had clear expression with a constant trend. Similar studies on data ob-tained from KSS and ORD showed that both of these parameters simultaneously increased as well as the level of drowsiness. In addition, a significant relationship existed between facial expression and drowsiness. Conclusion: This research would be an effective and efficient tool for timely alarming and detecting the drowsiness quickly and precisely.

Cites

Effects of Flashing Brake Lights on Drivers’ Brake Reaction Time and Releasing Accelerator Gas Pedal Time

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APA: Copy

POURSADEGHIYAN, MOHSEN, MAZLOUMI, ADEL, NASL SARAJI, GEBRAEIL, NIKNEZHAD, ALI REZA, AKBARZADEH, ARASH, & EBRAHIMI, MOHAMMAD HOSSEIN. (2017). DETERMINATION THE LEVELS OF SUBJECTIVE AND OBSERVER RATING OF DROWSINESS AND THEIR ASSOCIATIONS WITH FACIAL DYNAMICCHANGES. IRANIAN JOURNAL OF PUBLIC HEALTH, 46(1), 93-102. SID. https://sid.ir/paper/274597/en

Vancouver: Copy

POURSADEGHIYAN MOHSEN, MAZLOUMI ADEL, NASL SARAJI GEBRAEIL, NIKNEZHAD ALI REZA, AKBARZADEH ARASH, EBRAHIMI MOHAMMAD HOSSEIN. DETERMINATION THE LEVELS OF SUBJECTIVE AND OBSERVER RATING OF DROWSINESS AND THEIR ASSOCIATIONS WITH FACIAL DYNAMICCHANGES. IRANIAN JOURNAL OF PUBLIC HEALTH[Internet]. 2017;46(1):93-102. Available from: https://sid.ir/paper/274597/en

IEEE: Copy

MOHSEN POURSADEGHIYAN, ADEL MAZLOUMI, GEBRAEIL NASL SARAJI, ALI REZA NIKNEZHAD, ARASH AKBARZADEH, and MOHAMMAD HOSSEIN EBRAHIMI, “DETERMINATION THE LEVELS OF SUBJECTIVE AND OBSERVER RATING OF DROWSINESS AND THEIR ASSOCIATIONS WITH FACIAL DYNAMICCHANGES,” IRANIAN JOURNAL OF PUBLIC HEALTH, vol. 46, no. 1, pp. 93–102, 2017, [Online]. Available: https://sid.ir/paper/274597/en

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