Driver Display Control Using Gaze, Skill, and Visual Field Range
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Solution Overview
Problem
The visual field range of a driver changes based on factors other than the direction of their line of sight, such as driving skill and environmental conditions, leading to a risk of overlooking images displayed within their visual field if determined solely by line of sight direction.
Innovation Solution
A display control device that acquires traveling environment information and estimates driving skill, detects the line of sight direction, and calculates the visual field range and recognition level, allowing for dynamic adjustment of image display positions and methods based on these factors to ensure optimal visibility for the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the visual field range is determined based exclusively on the direction of the line of sight, then the display system is simple and easy to implement, but the driver may overlook the image displayed in the visual field range due to changes in visual field caused by driving skill and environmental factors
Solution Approach 1:
The visual field range is dynamically adjusted based on detected line of sight direction, driving skill level, and environmental conditions. The system continuously updates the visual field parameters rather than using a fixed range, allowing the display position and method to adapt to changing driver states and external conditions, thereby preventing overlooked images while maintaining reasonable system complexity
Solution Approach 2:
The system incorporates feedback loops that detect line of sight direction, assess driving skill, evaluate environmental conditions, and use this information to adjust the visual field range and image display parameters. This closed-loop control ensures the display adapts to actual driver needs while providing feedback on how display parameters are modified based on detected conditions
2Reliability
If the visual field range is expanded to account for all possible driving conditions, then the driver can always see the displayed image, but the display position may become inappropriate for the driver's actual visual needs
Solution Approach 1:
Instead of uniformly expanding the visual field range, the system applies local quality adjustments by modifying the visual field parameters specifically in the directions and regions where the driver actually needs to look based on their skill level and environmental conditions. This targeted approach ensures images are displayed in appropriate locations without unnecessarily expanding the overall visual field
Solution Approach 2:
The system changes visual field parameters (such as horizontal and vertical angles, display distance) based on detected driving conditions and driver state. By dynamically adjusting these parameters rather than using a fixed expanded range, the display position remains appropriate for the driver's actual visual needs while ensuring image visibility
Data Source
AI summary
A display control device includes processing circuitry to acquire traveling environment information; to estimate driving skill of the driver; to detect a direction of a line of sight of the driver; to accumulate information on movements of the sight line direction and driving action information; to calculate a visual field range and a visual recognition level indicating ease of recognition of each of a plurality of sections in the visual field range by the driver's vision based on the information on the movements of the sight line direction and the driving action information accumulated in the memory and at least one of the traveling environment information and the driving skill information; and to receive display information and to control at least one of a display position and a display method of an image on a basis of the display information.