Detection and early warning method, device and equipment for automobile fatigue driving and storage medium

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Detection and early warning method, device and equipment for automobile fatigue driving and storage medium

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ZHANG LEJUN / ZHANG XUCAN / SU SHEN / LI ZEXIN / ZHENG HUANQIN

The invention provides a detection and early warning method, device and equipment for automobile fatigue driving and a storage medium, and the method comprises the steps: reconstructing a to-be-detected image through employing a low-rank approximation method, and obtaining a reconstructed to-be-detected image; extracting facial features in the reconstructed to-be-detected image, and calculating a current eye aspect ratio, a current mouth aspect ratio and a current head pitching angle through the facial features; determining the size of a dynamic deviation operator according to the change degree of the current eye aspect ratio and the original eye aspect ratio and the change degree of the current mouth aspect ratio and the original mouth aspect ratio; combining the values of the current eye aspect ratio and the current mouth aspect ratio by using a dynamic deviation operator to obtain a dynamic weighted sum of the eyes and the mouth; judging the pitching angle state of driving, and judging fatigue driving if the current head pitching angle is greater than a pitching angle threshold value; otherwise, judging the opening and closing states of the eyes and the mouth of the driver, and judging fatigue driving if the dynamic weighted sum of the eyes and the mouth is greater than the synthetic threshold of the eyes and the mouth.

本公开提供了一种汽车疲劳驾驶的检测预警方法、装置、设备和存储介质，方法包括：使用低秩逼近法对待检测图像进行重构，得到重构待检测图像；提取重构待检测图像中的面部特征，通过面部特征计算当前眼睛纵横比、当前嘴巴纵横比及当前头部俯仰角度；根据当前眼睛纵横比与原始眼睛纵横比的变化程度，以及当前嘴巴纵横比与原始嘴巴纵横比的变化程度，确定动态偏差算子的大小；使用动态偏差算子将当前眼睛纵横比和当前嘴巴纵横比的值结合，得到眼睛嘴巴动态加权和；判断驾驶的俯仰角状态，如果当前头部俯仰角度大于俯仰角度阈值，判定为疲劳驾驶；否则，判断驾驶的眼睛嘴巴开合状态，如果眼睛嘴巴动态加权和大于眼睛嘴巴合成阈值，判定为疲劳驾驶。

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Title :

Detection and early warning method, device and equipment for automobile fatigue driving and storage medium

Additional title:

汽车疲劳驾驶的检测预警方法、装置、设备和存储介质

Contributors:

ZHANG LEJUN (author) / ZHANG XUCAN (author) / SU SHEN (author) / LI ZEXIN (author) / ZHENG HUANQIN (author)

Publication date :

2023-11-10

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

G06V / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion