Electronic Mirror View Control for Stable Rear Display Angles
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Solution Overview
Problem
Conventional in-vehicle electronic mirrors with camera displays can be unstable and uncomfortable for passengers when the driver is not actively looking, as the display view angle changes with head motion even when the driver is not operating the mirror.
Innovation Solution
An image processing apparatus that adjusts the display image based on the driver's viewpoint motion, using a processing unit to obtain and stabilize the display image when the driver's line-of-sight is within a certain region, and updates the reference viewpoint position to account for long-term posture changes, while superimposing a vehicle image to provide a sense of distance through motion parallax.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display view angle changes in accordance with head motion, then the visual field becomes intuitive and easily viewable, but the display becomes unstable and uncomfortable for passengers when the driver is not carrying out looking operation
Solution Approach 1:
The system dynamically adjusts the display view angle based on detected head motion when the driver is actively looking, while stabilizing the display when the driver is not looking. The control unit monitors head position continuously and switches between dynamic adjustment mode and stable display mode based on detection results, allowing the system to adapt its behavior to the driver's state.
Solution Approach 2:
The system uses head detection information as feedback to control the display view angle. The control unit receives head position data from detection units and adjusts the display accordingly, creating a closed-loop control system that responds to driver state changes and maintains appropriate display stability or responsiveness based on whether the driver is actively looking.
2Adaptability or versatility
If the display view angle changes continuously with head motion, then the driver gets an intuitive visual field, but the display fluctuates unnecessarily when the driver is not operating the mirror
Solution Approach 1:
The system implements dynamic behavior only when needed by detecting driver head motion, while maintaining static stability when the driver is not actively looking. The control unit switches between these two states based on detection input, allowing the display to be adaptive during active use and stable during passive states.
Solution Approach 2:
The system automatically detects driver state and adjusts display behavior without manual intervention. The control unit monitors head position and autonomously determines when to enable dynamic view angle adjustment and when to stabilize the display, making the system self-regulating based on detected conditions.
3Adaptability or versatility
If the reference viewpoint position is updated continuously, then the system adapts to long-term posture changes, but the display view angle becomes inaccurate during active looking operation
Solution Approach 1:
The system performs reference viewpoint position updates periodically or under specific conditions (when driver is not actively looking) rather than continuously. The control unit determines appropriate timing for updates based on detection input, allowing adaptation to long-term changes while maintaining accuracy during critical viewing periods.
Solution Approach 2:
The system performs reference viewpoint updates in advance during periods when the driver is not actively looking, preparing the system for future viewing sessions. By updating the reference position during idle periods, the system adapts to posture changes without interfering with the accuracy of the display during active looking operation.
Data Source
AI summary
A display image to be displayed on a display unit is obtained in accordance with motion of a viewpoint of a driver, on the basis of a captured image obtained by capturing an image on a rear side from a vehicle, when a line-of-sight of the driver is in a certain region including the display unit. For example, the display image is obtained in accordance with a deviation of a viewpoint position of the driver from a reference viewpoint position. For example, the reference viewpoint position is updated on the basis of a long-term fluctuation of the viewpoint position. For example, the reference viewpoint position is not updated when a line-of-sight of the driver is in a certain region including a display unit that displays a display image.