Multi-Sensor Coordinate Calibration Through Shared Observation Regions
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Solution Overview
Problem
Existing observation apparatuses with multiple sensors face challenges in calibration accuracy due to the need for individual calibration of each sensor, which is burdensome for operators.
Innovation Solution
A terminal apparatus and method that allows for the setting of specific regions corresponding to the observation regions of multiple sensors, enabling coordinated calibration by defining feature points within these regions to establish common coordinate systems, thereby reducing the burden on operators and improving detection accuracy through sensor fusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If calibration is performed on each of multiple sensors individually, then detection accuracy of each sensor is improved, but the operator's burden increases and the process becomes more complex
Solution Approach 1:
The patent combines the calibration process for multiple sensors into a unified operation. By setting a single coordinate system that encompasses observation regions from multiple sensors (including overlapping and non-overlapping regions), the system enables simultaneous calibration of all sensors rather than requiring separate calibration procedures for each sensor, thereby reducing operator burden while maintaining detection accuracy.
Solution Approach 2:
The patent creates a universal coordinate system that serves multiple sensors simultaneously. This single coordinate system framework can handle calibration for the first sensor, second sensor, and any additional sensors within a unified structure, making the calibration process multi-functional and applicable to all sensors in the system without requiring separate calibration procedures.
2Measurement precision
If calibration is performed on each of multiple sensors individually, then each sensor's coordinate system is optimized, but the complexity of the calibration process increases
Solution Approach 1:
The patent merges multiple separate calibration processes into a single unified calibration operation. By establishing one comprehensive coordinate system that integrates observation regions from multiple sensors (first region for overlapping areas, second region for first sensor-only areas, third region for second sensor-only areas), the system reduces calibration process complexity while maintaining coordinate system accuracy for all sensors.
3Area of stationary object
If multiple sensors are used to expand observation range, then detection coverage is improved, but alignment deviations between sensors increase
Solution Approach 1:
The patent implements a universal coordinate system that can accommodate multiple sensors with different observation ranges and angles. This single coordinate system framework handles alignment for all sensors simultaneously, ensuring consistent spatial relationships across the entire expanded observation area while maintaining precise coordinate alignment between all sensors regardless of their individual positioning.
Data Source
AI summary
A terminal apparatus includes an input unit and a controller. The controller accepts, via the input unit, an input of setting any point for at least one selected from the group consisting of a first region, a second region, and a third region. The first region corresponds to both an observation region of a first sensor and an observation region of a second sensor. The second region is a region that corresponds to the observation region of the first sensor and does not overlap the first region. The third region is a region that corresponds to the observation region of the second sensor and does not overlap the first region. Information on a position of a predetermined point in the observation region of the first sensor or the observation region of the second sensor is acquired based on the any point.