Rear-View Display Control Using Driver Gaze Tracking
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Solution Overview
Problem
Current vehicle systems lack the ability to automatically display rear side images without manual intervention, necessitating a solution to enhance user convenience by tracking user gaze for hands-free operation.
Innovation Solution
A vehicle system comprising sensors for acquiring rear side images and user gaze data, a display, an inputter for setting sensitivity, and a controller to process gaze data, remove high-frequency noise, and adjust the display accordingly, allowing automatic screen changes based on user gaze positioning and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual manipulation is required to switch display screens, then the system is simple and reliable, but user convenience deteriorates
Solution Approach 1:
The display system automatically switches screens based on detected user gaze direction without requiring manual input. The system serves itself by using the gaze detection data to autonomously determine when and what to switch displays, eliminating the need for manual manipulation while maintaining system reliability
Solution Approach 2:
The patent replaces manual mechanical manipulation with an optical detection system. Instead of requiring physical interaction with buttons or controls, the system uses gaze sensors to detect user intent and automatically triggers display switching, substituting mechanical operation with optical field-based control
2Measurement precision
If gaze data is acquired with high sensitivity, then user intent detection precision improves, but noise data increases
Solution Approach 1:
The system extracts and removes high-frequency noise components from the gaze data while preserving the meaningful low-frequency gaze direction information. This selective extraction allows the system to maintain high sensitivity for detecting user intent while eliminating unwanted noise data that would otherwise interfere with accurate control
Solution Approach 2:
The system implements feedback mechanisms where the processed gaze data is continuously monitored and adjusted. By comparing detected gaze movements against expected patterns and using the processed results to refine future detections, the system maintains precision while filtering out noise through iterative correction
3Ease of operation
If automatic screen switching is implemented, then user convenience improves, but system complexity increases
Solution Approach 1:
The gaze detection system serves multiple functions: it detects user intent for screen switching, determines timing for transitions, and provides the basis for automatic control decisions. By making the gaze detection system multi-functional, the patent reduces the need for separate control mechanisms, thereby improving convenience without proportionally increasing overall system complexity
Data Source
AI summary
A vehicle includes a first sensor for acquiring image data of a rear side, a second sensor for acquiring gaze data of a user, a display for outputting a screen of the image data, an input device for setting a sensitivity to a movement of a user gaze, and a controller for determining reference vector data based on the gaze data at a point in time at which the gaze data starts to be acquired or the gaze data that is preset, for outputting a control signal to output a screen of the image data corresponding to the reference vector data, for acquiring result data including relative position data and relative velocity data of gaze movement data with respect to the reference vector data, and for controlling a signal to output a screen of the image data.