Onboard Camera Calibration for Driving Support Start Time
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Solution Overview
Problem
Vehicle control systems face delayed driving support due to insufficient detection accuracy during the calibration process of onboard cameras, which is necessary for image recognition and driving support systems.
Innovation Solution
An information processing apparatus that sequentially performs a first and second calibration process of an onboard camera, using different Regions Of Interest (ROI) based on the camera's mounting stage, allowing for earlier initiation of driving support by adjusting detection accuracy according to the completion statuses of these processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the driving support is suppressed until the completion of the calibration process, then the detection accuracy is improved, but the start time of the driving support is delayed
Solution Approach 1:
The calibration process is divided into two distinct stages: a first calibration process that provides sufficient accuracy for basic driving support, and a second calibration process that achieves higher accuracy. By segmenting the calibration into phases, the system can activate driving support after the first calibration completes, rather than waiting for the entire calibration process, thus reducing start time delay while maintaining adequate detection accuracy.
Solution Approach 2:
The system performs partial calibration (first calibration process) that achieves sufficient but not maximum detection accuracy to enable driving support to start. This partial action approach allows the system to achieve 'enough' accuracy to begin driving support without completing the full calibration process, thereby reducing the time delay while accepting that maximum precision is achieved only after the second calibration process.
2Device complexity
If a single calibration process is performed, then the device complexity is reduced, but the detection accuracy is insufficient for early driving support
Solution Approach 1:
The calibration process is segmented into two distinct calibration processes with different complexity levels and accuracy outcomes. The first calibration process is simpler and faster, providing sufficient accuracy for basic driving support. The second calibration process is more complex but achieves higher accuracy. This segmentation allows the system to manage complexity while achieving the required detection accuracy for driving support.
Solution Approach 2:
The calibration system is designed to be dynamic, adapting the level of calibration performed based on system needs. The controller can determine whether to perform only the first calibration process (simpler, faster) or both the first and second calibration processes (more complex, higher accuracy) based on whether early driving support activation is prioritized or maximum detection accuracy is prioritized.
Data Source
AI summary
An information processing apparatus according to an embodiment includes a controller. The controller is configured to estimate an attitude of an onboard camera, sequentially perform a first calibration process and a second calibration process of the onboard camera, and change a detection accuracy of an image recognition process of a captured image captured by the onboard camera depending on completion statuses of the first calibration process and the second calibration process.