Method for real-time detection of driver fatigue based on vision

A driver fatigue, real-time detection technology, applied in the field of electronic technology applications, can solve the problem that the measured information is not very reliable

Inactive Publication Date: 2008-10-08
SHANDONG UNIV
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Problems solved by technology

(3) Measure vehicle and road related parameters, such as speed, acceleration, lateral position,

Method used

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  • Method for real-time detection of driver fatigue based on vision
  • Method for real-time detection of driver fatigue based on vision
  • Method for real-time detection of driver fatigue based on vision

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Embodiment

[0085] A method for real-time detection of driver fatigue based on vision, characterized in that the infrared-filtered continuous analog signal collected by the camera is converted into a digital image signal through the A / D conversion of the image acquisition module; the image processing module completes the processing of the digital image signal The calculation processing mainly includes: image preprocessing, image segmentation, feature extraction, and fatigue recognition; finally, the processing results are displayed through the output module; the specific steps of the fatigue real-time detection method are as follows:

[0086] 1) System initialization, and set the preset position of the gimbal;

[0087] 2) Call the corresponding preset position according to the head position;

[0088] 3) Locate the driver's head and judge the movement information of the head;

[0089] 4) The DSP chip sends control information to control the rotation of the gimbal according to the movement...

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Abstract

A driver fatigue realtime detection method based on the vision, belongs to the application technical field of the electronic technology, characterized in that, the continuous simulation signals through the infrared filter collected by the pick-up head are converted into the digital image signals through the A/D conversion of the image collection module; the image collection module completes the operating process on the digital image signals, including the pretreatment of the image, the image division, the feature extraction and the fatigue recognition; finally the processing result is displayed through the output module. The hardware in divided into three large modules: an image collection module, an image process module and an image output module. The image collection module includes an infrared sensitive black and white CCD camera, an infrared band-pass filter, an infrared source with a cradle head; the image process module is composed of the TMS320DM642 of the American TI company as the central part; the image output module is a LCD; the system is arranged in the inner of the cab. The invention has the advantages of easy realization, good realtime, higher accuracy of the judgment result, which provides the basis for the real application.

Description

technical field [0001] The invention relates to a vision-based real-time detection method for driver fatigue, which belongs to the technical field of electronic technology applications. Background technique [0002] At present, there are many organizations researching drowsy / fatigue driving detection and drowsiness detection systems under development in the world. Commonly used fatigue / drowsy driving detection technologies include: (1) Measurement of human physiological signals, such as EEG, ECG, and skin potential etc., its main disadvantage is that it requires physical contact, which is not easily accepted. (2) Measuring physical responses, such as blinking frequency, blinking duration, eye movement, head movement, etc., is characterized by being in the developmental stage, effective and without physical contact, and easy to accept. (3) Measure vehicle and road related parameters, such as speed, acceleration, lateral position, white line position, etc. The disadvantage is...

Claims

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Application Information

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IPC IPC(8): G06T7/20G06K9/00H04N7/18
Inventor 吴晓娟耿磊亓磊朱振华周玉彬俞梦孙
Owner SHANDONG UNIV
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