Vehicle Driver Identification Using Controlled Gaze Facial Capture
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Solution Overview
Problem
Existing driver monitoring systems face challenges in precise personal identification due to variable facial poses and gaze directions during data registration, which hinders accurate feature extraction and identification.
Innovation Solution
A personal identification system is implemented in vehicles, utilizing a first and second display unit, an imaging unit, and processors to capture and process facial images with controlled gaze directions, ensuring consistent facial pose and gaze alignment for enhanced feature extraction and identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If facial images are captured during personal registration without controlling gaze direction, then the system is easier to operate, but the measurement precision of facial features deteriorates due to variable facial poses and gaze directions
Solution Approach 1:
The system performs preliminary actions by displaying guidance images on the display unit before capturing facial images during personal registration. These guidance images instruct the user on the required gaze direction and facial pose, preparing the user in advance to provide the correct facial orientation, thereby ensuring measurement precision without complicating the registration process
Solution Approach 2:
The system provides feedback by displaying images on the display unit that show the captured facial image and guidance information. This feedback loop allows the user to adjust their gaze direction and facial pose in real-time based on visual cues, ensuring that the captured facial images meet the precision requirements for feature extraction
2Reliability
If multiple facial images with controlled gaze directions are captured, then the reliability of personal identification improves, but the device complexity increases due to multiple display units and imaging units
Solution Approach 1:
The display unit serves multiple functions: it displays guidance images for gaze direction control, shows captured facial images for verification, and provides feedback during the registration process. The imaging unit similarly performs multiple functions by capturing both the guidance display and the facial images. This multi-functionality reduces the need for separate dedicated components, thereby reducing device complexity while maintaining reliability
Solution Approach 2:
The system merges the guidance display and the facial image capture functions into a single integrated workflow. The display unit and imaging unit work together as a combined system where the display provides guidance and the imaging unit captures the result, eliminating the need for separate independent systems and reducing overall device complexity
Data Source
AI summary
A personal identification system to be applied to a vehicle includes first and second display units, an imaging unit, a display image processor, and a personal identification processor. The first display unit is provided vehicle-widthwise halfway and vehicle-lengthwise in front of a driver's seat of the vehicle. The second display unit fronts onto the driver's seat. The imaging unit is provided on the outer periphery of the first display unit. The personal identification processor makes personal registration and personal identification of a driver seated on the driver's seat based on at least first and second facial images. The first facial image includes an image of the driver's face captured by the imaging unit with the driver's gaze directed toward the first display unit. The second facial image includes an image of the driver's face captured by the imaging unit with the driver's gaze directed toward the second display unit.