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Abstract Driver drowsiness estimates can be realized by analyses of the drivers' eye movements based on a machine vision system. However, the system requires accurate eye region recognition in the driver's facial image. Random, rapid changes of the head posture complicate locating the eye region in real driving scenarios. The active shape model (ASM) can be used to coarsely locate the eye region. This study uses a local ASM model to enhance the head posture adaptability of the ASM algorithm. Then, the average of synthetic exact filters (ASEF) algorithm and the ASM are combined to improve the eye region location precision. A single eye ASEF and a double eyes ASEF are integrated to more robustly identify the iris center location. Tests show that the algorithm has strong head posture adaptability and can robustly and accurately identify the eye region location.
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Keywords
driver drowsiness
machine vision
eye location
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Issue Date: 15 June 2014
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