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Device and method for detecting fatigue

A fatigue detection and pupil technology, applied in the field of fatigue detection, can solve problems such as inattention, disobedience, and large judgment errors

Inactive Publication Date: 2010-02-10
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a driver driving a vehicle in a fatigued state has the following obvious characteristics: unconsciousness, drowsiness, unresponsiveness, inability to accurately judge and quickly deal with various abnormal situations; Inattention, large errors in judgment

Method used

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  • Device and method for detecting fatigue
  • Device and method for detecting fatigue
  • Device and method for detecting fatigue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] refer to figure 1 As shown, an embodiment of the fatigue detection device includes:

[0026] The light source 10 illuminates the eyes to enhance the red-eye effect;

[0027] The image acquisition unit 20, acquires the pupil image under the situation that the red-eye effect is enhanced;

[0028] A calculation unit 30, performing calculations based on the pupil image to obtain eye feature data that can be used to analyze fatigue;

[0029] The fatigue analysis unit 40 analyzes the eye feature data to determine the degree of human fatigue.

[0030] When the human body is in different fatigue states, the eyes will show different features correspondingly, such as the frequency of blinking, etc. Therefore, in the above embodiment, the eye feature data can be used to analyze the fatigue degree of the human body.

[0031] A series of processing procedures can be performed based on the pupil image, so as to obtain eye movement feature data. Since the accuracy of the eye featu...

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Abstract

The invention relates to a device and a method for detecting fatigue. Eyes are irradiated by a light source to strengthen the red eye effect, and a pupil image is acquired under the condition of strengthening the red eye effect. Because of the strengthening of the red eye effect, the high-definition pupil image can be acquired so as to ensure that a result of the subsequent analysis performed on the basis is more accurate.

Description

technical field [0001] This application relates to the field of fatigue detection. Background technique [0002] Fatigue refers to the physiological and psychological disorders caused by continuous physical and mental work. When people are in a state of fatigue, their reactions will become sluggish, and their ability to control the body will also be reduced. For example, a driver driving a vehicle in a fatigued state has the following obvious characteristics: unconsciousness, drowsiness, unresponsiveness, inability to accurately judge and quickly deal with various abnormal situations; Inattention, large errors in judgment. Therefore, further research will further determine the fatigue status of the human body. Contents of the invention [0003] An embodiment of a fatigue detection device, comprising: [0004] A light source that illuminates the eyes to enhance the red-eye effect; [0005] An image acquisition unit, which acquires a pupil image when the red-eye effect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/16
Inventor 宁新宝陈颖何爱军
Owner NANJING UNIV
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