Camera Calibration Visualization Using Overlay Alignment Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera calibration systems fail to effectively address misalignment due to temporal changes, necessitating a method to confirm the accuracy of calibration parameters.
Innovation Solution
A method involving a first camera, a second camera, and a display device to visualize the calibration state by obtaining calibration parameters, determining the relative position between the cameras, and superimposing a specific image on the second camera's image to display the calibration state, facilitated by a control device and computer program.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If calibration parameters are set in advance for camera use, then the camera can recognize object positions and perform interaction operations, but misalignment occurs due to temporal changes in calibration parameters
Solution Approach 1:
The system captures images of a calibration pattern with the camera, detects feature points, and compares detected positions with expected positions based on calibration parameters. This feedback loop allows real-time verification and adjustment of calibration parameters, ensuring accuracy despite temporal changes while maintaining continuous operation capability
2Measurement precision
If calibration parameters are adjusted frequently to maintain accuracy, then alignment precision is improved, but system complexity and operation time increase
Solution Approach 1:
The system performs self-calibration by automatically capturing images of the calibration pattern, detecting feature points, calculating position deviations, and adjusting calibration parameters without external intervention. This automated self-service approach maintains high measurement precision while avoiding the complexity of manual calibration procedures
Data Source
AI summary
A method according to the present disclosure includes (a) obtaining a calibration parameter of a first camera, (b) using a second camera to obtain a relative position between the first camera and the second camera, and (c) displaying a specific image representing a calibration state of the first camera on a display device with a positional posture changing with a value of the calibration parameter so as to be superimposed on an image taken by the second camera.