Vehicle Camera Mirror Video Feed Adjustment for Moving Objects
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Solution Overview
Problem
Camera mirror systems (CMS) provide static video feeds that do not dynamically adjust based on the vehicle operator's needs or driving conditions, lacking the adaptability of traditional mirrors which change views based on angle.
Innovation Solution
A vehicle display system with a camera, display, sensor, and processor that adjusts video feeds based on vehicle occupant's bodily characteristics and operational states, allowing dynamic adjustments such as field of view, cropping, and magnification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera is mounted in the vehicle interior facing the driver to capture eye movement and attention data, then driver monitoring capability is improved, but driver comfort deteriorates due to the feeling of being watched
Solution Approach 1:
A mirror is introduced as an intermediary between the camera and the driver. The mirror reflects the driver's image back to them, creating a feedback loop that maintains natural behavior while enabling camera monitoring. This intermediary element allows the camera to capture data without the driver feeling directly watched, thus preserving comfort while improving monitoring capability.
2Device complexity
If a fixed mirror is used to reflect driver image to camera, then device complexity is reduced, but adaptability deteriorates because the mirror cannot adjust to different driver positions or lighting conditions
Solution Approach 1:
The mirror is transformed from a static component to a dynamic one by equipping it with adjustment mechanisms. The mirror can now move or rotate to adapt to different driver positions, and its reflectivity can be adjusted in response to varying lighting conditions. This dynamic capability resolves the contradiction by maintaining simplicity while significantly improving adaptability.
3Loss of information
If video feed from the camera is displayed to the driver, then driver awareness is improved, but device complexity increases due to additional display and processing components
Solution Approach 1:
The video feed display function is merged with the existing mirror structure. Instead of adding a separate display device, the mirror itself serves as the display medium by projecting or reflecting the camera-captured image back to the driver. This integration reduces overall system complexity while maintaining enhanced driver awareness through the feedback mechanism.
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 the adaptability of video feeds to operator needs by dynamically adjusting based on gaze, head movements, and vehicle conditions, providing a more intuitive and responsive viewing experience.
Implementation Method 1
A camera mounted in the vehicle interior may be used to capture an image of the driver via a mirror
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A vehicle display system according to an example embodiment of the present disclosure includes a camera configured to record images of an area outside a vehicle; a display configured to display a video feed of the recorded images to an occupant of the vehicle (e.g., on a display disposed within a vehicle cabin of the vehicle); and a processor operatively connected to the camera and display. The processor is configured to detect one or more objects in the recorded images; receive a selection of a particular one of the one or more objects from a vehicle occupant; and adjust the video feed based on the selection to keep the particular one of the one or more objects in a field of view of the video feed as the object moves relative to the vehicle.