Abstract
Under the existing single sample condition, the fatigue detection method of an automobile driver has some problems, such as an improper camera calibration method, image denoising beyond the controllable range, low fatigue detection accuracy, and unsatisfactory effect. A fatigue detection method for drivers based on face recognition under a single sample condition is proposed. Firstly, the camera is calibrated by Zhang Zhengyou’s calibration method. The optimal camera parameters were calculated by linear simulation analysis, and the image was nonlinear refined by the maximum likelihood method. Then, the corrected image effect is enhanced, and the scale parameter gap in the MSRCR image enhancement method is adjusted to the minimum. The detection efficiency is improved by a symmetric algorithm. Finally, the texture mapping technology is used to enhance the authenticity of the enhanced image, and the face image recognition is carried out. The constraint conditions of fatigue detection are established, and the fatigue detection of car drivers under the condition of a single sample is completed. Experimental results show that the proposed method has a good overall detection effect: the fatigue detection accuracy is 20% higher than that of the traditional method, and the average detection time is over 30%. Compared with the traditional fatigue detection methods, this method has obvious advantages, can effectively extract more useful information from the image, and has strong applicability.
Highlights
The automobile is an indispensable mechanical equipment in the agricultural production and life
The camera calibration is very important for the automobile driver fatigue detection under a single sample condition, and the camera calibration is realized by using the calibration method of Zhang Zhengyou
The calibration method of Zhang Zhengyou calculates the optimal solution of the camera parameters by linear simulation analysis; the maximum likelihood method was used effect and camera calibration results obtained by the proposed method are ideal
Summary
The automobile is an indispensable mechanical equipment in the agricultural production and life. The driving technology and driving state of the automobile driver will have a direct impact on the quality of agricultural cultivation. Agricultural production is seasonally strong, working hours are concentrated, and the working environment is relatively bad, so automobile drivers are prone to fatigue [1]. In real life, people often ignore the fatigue analysis of the automobile driver, so it is of great practical significance to strengthen the fatigue analysis of the automobile driver to ensure the effective production of agricultural production. There are many methods to detect faces. When a sufficient number of representative samples are detected, good results can be obtained
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