Driver Blind Spot Display Using Gaze and Head Position
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Solution Overview
Problem
Existing display systems for vehicles fail to accurately calculate the visual field and blind spot regions due to variations in passenger head position, leading to inaccurate viewpoint calculations and visual field estimation.
Innovation Solution
A display control device that acquires sight line and viewpoint information of the user, combined with map information, to accurately determine the blind spot region and generate display information for the user, using in-vehicle imaging devices and surroundings imaging devices to provide accurate visual field and blind spot region calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the visual field is calculated only on the basis of detected sight line without considering head position variation, then the calculation process is simple, but the accuracy of visual field and blind spot region calculation deteriorates
Solution Approach 1:
The patent changes the parameters used for visual field calculation from only sight line direction to include both sight line direction and head position coordinates. This allows accurate calculation of the visual field and blind spot region by considering individual differences in head position while maintaining a manageable calculation process through parameter integration.
2Measurement precision
If the visual field calculation considers head position variation, then the accuracy of blind spot region calculation is improved, but the device complexity increases
Solution Approach 1:
The in-vehicle imaging device performs multiple functions: it detects both the sight line direction and the head position coordinates of the user. By integrating these detection capabilities into a single multi-functional device, the system achieves accurate visual field and blind spot region calculation without proportionally increasing overall system complexity.
Solution Approach 2:
The patent combines the sight line detection function and head position detection function into an integrated processing approach. By merging these detection results and using them together in the visual field calculation, the system achieves improved accuracy while avoiding the complexity of separate independent systems.
3Ease of manufacture
If standard visual field angles are used without personalization, then the system is easy to implement, but it cannot adapt to individual user differences in physique and driving posture
Solution Approach 1:
The system transitions from a static, fixed visual field angle approach to a dynamic, personalized approach. By continuously detecting the user's head position and sight line direction, and calculating the visual field and blind spot region based on these real-time measurements, the system adapts to individual user differences in physique and driving posture while maintaining ease of implementation through automated detection and calculation.
Data Source
AI summary
A display control device acquires sight line information about a direction of a visual field of a driver of a moving body, viewpoint information about a start point of the visual field of the driver, and map information around the moving body. The display control device acquires a blind spot region of the driver on the basis of the acquired sight line information, viewpoint information, and surroundings information. In addition, the display control device performs control of generating display information on the basis of the surroundings information about the blind spot region and displaying the display information on a display device.