Vehicle Vision Display Overlay Alignment During Zoom and View Shift
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Solution Overview
Problem
Existing digital vision systems for vehicles struggle to accurately display extra-information with a fixed position relative to the vehicle, as this information becomes misaligned when the image capturing area changes or zooms, leading to incomplete visibility during driving.
Innovation Solution
Assigning a coordinate system to the extra-information that matches the image sensor's coordinate system, ensuring fixed ratios in scaling and orientation, allowing for correct overlay of information even when the image capturing area shifts or zooms, without requiring complex image recognition techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If extra-information is superimposed on image data using a fixed coordinate system, then the extra-information remains stationary on the display, but the extra-information becomes misaligned when the image capturing area changes or zooms
Solution Approach 1:
The patent applies the dynamics principle by making the extra-information coordinate system dynamic rather than fixed. The coordinate system for extra-information is adapted to match the current image capturing parameters (extraction area position and size), allowing the extra-information to maintain correct alignment with the vehicle even when the image capturing area changes or zooms. This resolves the contradiction by enabling the extra-information position to dynamically adjust while maintaining visual stationarity relative to the vehicle.
2Measurement precision
If complex image recognition techniques are used to maintain extra-information alignment, then alignment accuracy improves, but computational power and processing time increase
Solution Approach 1:
The patent applies the copying principle by creating a coordinate system model that mirrors the image sensor's coordinate system. Instead of using complex image recognition to determine alignment, the system copies the transformation parameters (extraction area position and size) from the image processing to the extra-information rendering. This simple coordinate mapping approach achieves accurate alignment without requiring computationally intensive image recognition techniques.
3Adaptability or versatility
If the image capturing area is changed to provide different views, then visibility of different regions improves, but extra-information becomes misaligned
Solution Approach 1:
The patent enables the system to dynamically adapt to different image capturing areas by adjusting the extra-information coordinate system to match the current extraction area parameters. This allows the system to provide different views (improving adaptability) while maintaining accurate extra-information alignment through real-time coordinate system adaptation.
Solution Approach 2:
The patent applies parameter changes by adjusting the coordinate system parameters (origin, scaling, orientation) for extra-information based on the current image capturing parameters. When the extraction area position or size changes, the extra-information coordinate system parameters are相应 adjusted to maintain correct alignment, enabling versatile viewing while preserving alignment accuracy.
Data Source
AI summary
Superimposing and displaying extra-information on image data displayed on a display for a vehicle, the system has an image capturing unit having an image sensor, an image processing unit and an image display unit having a display area, and wherein a sensor coordinate system is assigned to the image sensor having an origin of the sensor coordinate system and a scaling of the sensor coordinate system. An extra-information coordinate system is assigned to the extra-information and having an origin and a scaling. The method extracts image data from an extraction area, superimposes extra-information in the image processing unit, and displays image data together with the overlayed extra-information on the image display area of the image display unit. The position of the sensor extraction area is shiftable and/or its size variable.