In-Vehicle Camera Calibration Target for Visible and Infrared Alignment
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Solution Overview
Problem
The existing calibration processes for in-vehicle camera systems, particularly night vision systems, are complex and time-consuming, requiring separate calibration procedures for common and infrared cameras.
Innovation Solution
A calibration apparatus and method that includes a body with distinctive marks for common camera detection and heating members for infrared camera detection, allowing simultaneous calibration of both cameras in a single operation by using a ring-shaped distinctive mark and PTC heating members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate calibration apparatus are used for common camera and infrared camera, then each camera can be calibrated individually, but the operation becomes complex and time-consuming
Solution Approach 1:
The patent combines the common camera calibration target and infrared camera calibration target into a single integrated calibration apparatus. The apparatus includes both distinctive marks for common camera detection and heating members for infrared camera detection, allowing simultaneous calibration of both camera types using one device instead of two separate apparatus.
Solution Approach 2:
The calibration apparatus is designed with multi-functionality to serve both common camera and infrared camera calibration needs. It includes distinctive marks that are detectable by common cameras and heating members that generate heat detectable by infrared cameras, making it a universal calibration tool for different camera types.
2Measurement precision
If separate calibration procedures are performed for common camera and infrared camera, then each camera receives dedicated calibration, but the calibration time increases
Solution Approach 1:
The patent merges the calibration procedures for common camera and infrared camera into a single simultaneous operation. By integrating both calibration targets (distinctive marks and heating members) into one apparatus, both cameras can be calibrated at the same time, significantly reducing the total calibration time compared to sequential calibration.
Solution Approach 2:
The calibration apparatus is pre-configured with both distinctive marks and heating members in specific arrangements that allow simultaneous detection by both camera types. This preliminary setup enables the calibration process to proceed concurrently without requiring sequential operations.
3Ease of operation
If a single calibration apparatus is used for both common and infrared cameras, then operation is simplified, but the device structure becomes more complex
Solution Approach 1:
The calibration apparatus is segmented into distinct functional modules: distinctive marks for common camera calibration and heating members for infrared camera calibration. This segmentation allows each component to perform its specific function while being part of an integrated system, making the complexity manageable and the operation simple.
Solution Approach 2:
Different parts of the calibration apparatus have different local qualities optimized for their specific detection methods. The distinctive marks have optical properties suitable for common camera detection, while the heating members have thermal properties suitable for infrared camera detection, allowing each region to be optimized for its purpose.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies the calibration process by enabling the common and infrared cameras to be calibrated concurrently, reducing operational complexity and time.
Implementation Method 1
the heating member is configured to generate heat so as to be detected by an infrared camera
Data Source
AI summary
The present invention provides a calibration apparatus, system and method for an in-vehicle camera. The calibration apparatus for an in-vehicle camera includes: a body, where at least one distinctive mark arranged at intervals along a first direction and at least one heating member arranged at intervals along a second direction are disposed on the body. The distinctive mark is configured to be recognized by a common camera, and the heating member is configured to generate heat so as to be recognized by an infrared camera. According to the calibration apparatus, system and method for an in-vehicle camera provided in the present invention, during calibration, a common camera can recognize the distinctive mark, and therefore, the common camera can be calibrated; the heating member may generate heat so as to be recognized by an infrared camera, and therefore, the infrared camera is calibrated. In this way, the common camera and the infrared camera can be calibrated simultaneously in one calibration operation; the operation is simple and convenient.