Vehicle Head-Up Display Eye Tracking Positioning

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Solution Overview

Problem

Existing head-up displays in vehicles often struggle to correctly position and orient virtual objects within the external environment, leading to distraction for drivers due to incorrect positioning and animation, especially when the driver moves their head.

Innovation Solution

An apparatus and method that utilize positional data of the driver's eye, environment data, and vehicle status data to generate image data for the head-up display, ensuring the virtual object appears correctly positioned and oriented within the environment, and can be animated naturally without causing distraction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a virtual object is displayed in a head-up display to guide the user along a route, then navigational guidance is provided to the user, but the virtual object may appear to be incorrectly positioned in the exterior environment or not animated correctly, causing distraction and irritation to the driver

Engineering Contradiction:

Improvenavigational guidance accuracyVSAvoiddriver distraction

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The system dynamically changes multiple parameters including the virtual object's position, orientation, scale, and animation behavior based on real-time data from eye position sensors, vehicle motion sensors, and navigation system data. This ensures the virtual object remains correctly positioned and animated in the head-up display, providing accurate navigational guidance without causing driver distraction.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system continuously monitors eye position through sensors and uses this feedback to adjust the virtual object's display parameters in real-time. When the driver moves their head or eyes, the system detects this movement and recalculates the virtual object's position and orientation to maintain correct alignment with the exterior environment, preventing distraction while preserving navigational information accuracy.

Inventive Principle:

Principle #23Feedback

2Stability of the object's composition

If the virtual object is displayed to remain stationary in the environment, then correct positioning is maintained, but the virtual object may appear to move out of position when the user moves their head

Engineering Contradiction:

Improvevirtual object positioning stabilityVSAvoiduser head movement adaptability

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system transitions from a static virtual object display to a dynamic one that automatically adjusts to user head movements. Eye position sensors detect when the user moves their head, and the system responds by recalculating and updating the virtual object's position and orientation parameters in the head-up display. This dynamic adaptation maintains the virtual object's correct positioning relative to the exterior environment while accommodating natural user head movements without causing distraction.

Inventive Principle:

Principle #15Dynamics

3Loss of information

If the head-up display provides detailed navigational information, then comprehensive guidance is available, but the displayed information may be difficult for some users to interpret

Engineering Contradiction:

Improvenavigational information completenessVSAvoidinformation interpretability

Core Design Contradiction:

Loss of informationVSDifficulty of detecting and measuring

Solution Approach 1:

The system enhances the interpretability of navigational information by applying different visual qualities to different parts of the virtual object display. Key navigational elements such as the virtual car's position, orientation, and upcoming maneuvers are emphasized through enhanced visibility, contrast, and positioning. This selective enhancement makes critical navigational information easier to interpret while preserving comprehensive guidance data in the head-up display.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10895912B2Apparatus and a method for controlling a head- up display of a vehicle

Publication Date: 2021.01.19 JAGUAR LAND ROVER LTD

AI summary

An apparatus (101), a method (1000), a system (120), a vehicle (103), a computer program (904) and a non-transitory computer readable medium (906) for controlling ahead-up display (102) of a vehicle (103) are disclosed. The apparatus (101) comprises control means (104) configured to obtain positional data representative of a position of an eye (105) of a user (106) of the vehicle (103), obtain environment data representative of the environment (107) external to the vehicle (103); and obtain status data representative of a current position (803) of the vehicle (103). The control means is also configured to determine a proposed position (804) and proposed orientation in dependence on the environment data and the status data, and in dependence on the proposed position (804), the proposed orientation and the positional data, generate image data for the head-up display (102) for causing the head-up display (102) to display a virtual object (108) so as to appear at the proposed position (804) and with the proposed orientation with respect to the environment (107).