Driver Field of View Matching Video Display System
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Solution Overview
Problem
Existing systems fail to accurately match the driver's field of view when the rear view is obstructed, as the perspective of displayed images does not align with the driver's current viewing angle, and adjustments are not made as the driver's head position changes.
Innovation Solution
A field of view matching video display system comprising a tracking device, a rear-facing camera, and a processing device that captures and analyzes video images to determine the driver's head position and field of view, adjusting the displayed image to match the driver's current perspective by cropping and stretching the rear-facing camera's view accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a display is used to restore the driver's obstructed rear view, then the driver can see the rear area, but the perspective of the displayed image does not match the driver's current viewing angle
Solution Approach 1:
The system dynamically adjusts the display perspective based on real-time tracking of the driver's head position. The processing device receives head position data from the tracking device and modifies the image parameters (rotation angle, perspective transformation) to match the driver's current viewing angle, making the system adaptive rather than static
Solution Approach 2:
The system implements a feedback loop where the tracking device continuously monitors the driver's head position, the processing device calculates the appropriate perspective adjustment based on this position data, and the display device updates the image accordingly. This closed-loop control ensures the display perspective continuously matches the driver's actual viewing angle
2Device complexity
If the display shows a fixed perspective image, then the system is simple to implement, but the image does not adjust when the driver's head position changes
Solution Approach 1:
The system transitions from a static fixed-perspective display to a dynamic adaptive display that automatically adjusts its perspective based on the driver's head position. The processing device applies real-time image transformation parameters (rotation, scaling, perspective correction) based on tracking data, enabling the display to adapt to different viewing positions without requiring multiple physical displays
Solution Approach 2:
The system changes the display image parameters (rotation angle, perspective transformation matrix, field of view angle) based on the driver's head position data. By dynamically modifying these parameters, the system achieves adaptability while using a single display device, balancing complexity and versatility
Data Source
AI summary
A field of view matching video display system may comprise a tracking device, a rear-facing camera, a processing device, and a display. The tracking device is configured to capture a first video image in a predefined area in the vehicle and provide a first video image signal. The rear-facing camera is configured to capture a second video image and provide a second video image signal. The processing device is configured to analyze the first video image obtained via the first video image signal to determine a head position of the driver, determine a first field of view for the driver based on the head position of the driver, generate a third video image that substantially corresponds with at least a portion of the first field of view of the driver, and provide a third video image signal. The display is configured to show the third video image.