Pupil-Tracking Vehicle Display for Forward-Facing Blind Spot Viewing
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Solution Overview
Problem
Conventional vehicle safety systems increase the risk of accidents as drivers must move their head to view side or rear view mirrors or display devices, temporarily diverting their line of sight from the front of the vehicle.
Innovation Solution
A vehicle safety system utilizing pupil detection technology, which includes a sensing unit, processing unit, and control unit to track the driver's pupil position and trigger vehicle devices accordingly, allowing the driver to keep their line of sight forward without moving their head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the driver moves head to view side/rear view mirrors or display devices, then the driver can observe the status around the car, but the line of sight is temporarily diverted from the front of the car and the risk of car accident is increased
Solution Approach 1:
The patent replaces the mechanical action of head movement with an optical/electronic system. Sensors detect the driver's gaze direction, and based on this detection, the system automatically displays relevant visual information (side/rear view mirror images, blind spot information) on a display device positioned in the driver's forward field of view, eliminating the need for physical head movement while maintaining situational awareness
Solution Approach 2:
The patent introduces an intermediary system consisting of gaze detection sensors, processing units, and display devices. This intermediary automatically interprets the driver's intent through pupil tracking and provides the necessary visual information without requiring the driver to physically turn their head, thus mediating between the driver's need for information and the need to maintain forward focus
2Loss of information
If cameras are installed at the side view mirrors to monitor blind spots, then the driver can confirm the status around the car, but the driver has to move head to watch the real time video on the display device
Solution Approach 1:
The patent transforms the viewing experience from a spatial repositioning task (moving head to see display) to a gaze-direction-based information delivery system. The display device is positioned in the driver's forward field of view, and information is selectively presented based on gaze detection, effectively adding the dimension of automated gaze-based control to eliminate physical head movement
Solution Approach 2:
The patent replaces the mechanical head movement required to view the display with an automated gaze detection and information delivery system. The system detects pupil position, determines the driver's area of interest, and automatically presents relevant blind spot or side view information without requiring the driver to physically move their head
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances driving safety by enabling the driver to maintain focus on the road while accessing necessary vehicle information without physically moving to view side or rear views, reducing the risk of accidents.
Implementation Method 1
The sensing unit is configured to capture an image frame containing an image of an eyeball from a predetermined distance
Implementation Method 2
The processing unit is configured to calculate an eyeball position in the image frame
Data Source
AI summary
There is provided a vehicle system including a sensing unit, a processing unit, a control unit and a display unit. The sensing unit is configured to capture an image frame containing an eyeball image from a predetermined distance. The processing unit is configured to calculate a pupil position of the eyeball image in the image frame and generate a drive signal corresponding to the pupil position. The control unit is configured to trigger a vehicle device associated with the pupil position according to the drive signal. The display unit is configured to show information of the vehicle device.