Non-Uniform Resolution Imaging for Service Vehicle Safety
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Solution Overview
Problem
Existing imaging systems on service vehicles, such as road rollers, face challenges in obtaining detailed information about the work area due to insufficient camera resolution and imaging angle, which can impact safety and work quality.
Innovation Solution
The proposed imaging system includes an imaging unit on a movable unit, configured to perform imaging at a higher resolution in the peripheral areas of the imaging angle of view than in the central areas. This allows for clear capture of obstacles and foreign objects, enhancing safety and work quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple cameras are attached to the roof of the service vehicle to surveil the work area and nearby area, then the safety monitoring coverage is improved, but the resolution of the cameras becomes insufficient to obtain detailed information about the work area
Solution Approach 1:
The imaging unit is designed with non-uniform resolution distribution, providing higher resolution in peripheral areas than in the central area. This allows the single camera to simultaneously deliver detailed imaging for work area surveillance (peripheral high resolution) and adequate imaging for general safety monitoring (central area resolution), resolving the contradiction between coverage area and imaging resolution.
2Measurement precision
If the imaging angle of view of the camera is narrowed to obtain detailed information about the work area, then the resolution for work area imaging is improved, but the safety monitoring capability becomes insufficient
Solution Approach 1:
By implementing higher resolution in the peripheral areas of the imaging angle of view, the system can capture detailed information about the work area even when using a wider imaging angle, thus maintaining both safety monitoring coverage and work area imaging resolution simultaneously.
Solution Approach 2:
The imaging angle of view is functionally segmented into different resolution zones: peripheral areas provide high resolution for work area details, while the central area provides adequate resolution for safety monitoring, allowing the single camera to fulfill multiple surveillance functions.
3Device complexity
If a single imaging unit is used to image both the work area and nearby area, then the device complexity is reduced, but the imaging resolution for detailed work area information becomes insufficient
Solution Approach 1:
The single imaging unit incorporates variable resolution characteristics across its field of view, with enhanced peripheral resolution that enables detailed work area imaging without requiring multiple cameras, thus reducing device complexity while maintaining imaging precision.
Solution Approach 2:
The imaging unit is designed to perform multiple functions simultaneously: it monitors safety in the nearby area (central view) and captures detailed work area information (peripheral high-resolution view), replacing the need for multiple specialized cameras with a single multi-functional device.
Data Source
AI summary
An imaging system includes an imaging unit disposed on a movable unit, and a processor configured to output image data acquired by the imaging unit to a display unit. The imaging unit is configured to perform imaging at a higher resolution in a peripheral area of an imaging angle of view than that in a central area. A first imaging area in front of the movable unit in a moving direction of the movable unit is imaged in a part of the peripheral area, a second imaging area is imaged in the central area, and a third imaging area closer to the movable unit than the second imaging area is imaged in another part of the peripheral area.