Trailer Surround View Calibration for Distortion-Free Image Stitching
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Solution Overview
Problem
Existing trailer vehicle monitoring systems face distortion issues in generating surround view images when a trailer is replaced with one having different dimensions or camera configurations, leading to safety concerns due to inconsistent image synthesis.
Innovation Solution
A method and system where an image processing device on the tractor receives calibration information and image data from the trailer, allowing it to generate a surround view image by synchronizing and correcting distortions using the received information, ensuring a 360-degree view without distortion, even when trailers of different sizes or configurations are used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same monitoring system settings are applied to different trailers, then the system operation is simple, but image distortion occurs due to different trailer dimensions and camera positions
Solution Approach 1:
The system automatically adjusts camera calibration parameters including position, orientation, and optical characteristics based on the specific trailer configuration. By changing these parameters dynamically according to the trailer being monitored, the system maintains accurate image synthesis without requiring manual reconfiguration of the entire monitoring system.
Solution Approach 2:
The monitoring system transitions from a static configuration to a dynamic one where camera calibration data is automatically updated based on the detected trailer. The system adapts its parameters in real-time to match the specific dimensions and camera arrangements of different trailers, enabling flexible operation across multiple trailer types.
2Manufacturing precision
If manual calibration is performed for each trailer configuration, then image accuracy is improved, but the system complexity and time consumption increase
Solution Approach 1:
The system performs automatic self-calibration by detecting trailer features and computing camera parameters without human intervention. The monitoring system serves itself by automatically adapting to different trailer configurations, eliminating the need for manual calibration operations and reducing system complexity from the user perspective.
Solution Approach 2:
The system pre-computes and stores calibration data for various trailer configurations in a database. When a trailer is detected, the system quickly retrieves and applies the appropriate calibration parameters, avoiding the need for time-consuming manual calibration while maintaining high image accuracy.
3Adaptability or versatility
If cameras are repositioned to accommodate different trailer dimensions, then adaptability is improved, but installation complexity and cost increase
Solution Approach 1:
Instead of physically repositioning cameras, the system achieves adaptability by changing the calibration parameters that describe camera positions and orientations. This software-based approach allows the same physical camera installation to work with different trailer configurations, maintaining ease of manufacture while improving adaptability.
Solution Approach 2:
The monitoring system is designed to be universal, accommodating multiple trailer types and configurations without requiring physical modifications. By implementing a unified calibration framework that can handle various trailer dimensions and camera arrangements, the system achieves multi-functionality while keeping installation simple and standardized.
Data Source
AI summary
A method for generating a surround view image of a trailer vehicle is proposed. The method includes receiving, by an image processing device of a tractor, first calibration information for a plurality of cameras arranged on a first trailer from an image processing device arranged on the first trailer, receiving, by the image processing device of the tractor, trailer image information comprising images captured by the plurality of cameras of the first trailer from the first trailer, generating, by the image processing device of the tractor, tractor image information comprising images captured by a plurality of cameras arranged on the tractor and generating, by the image processing device of the tractor, the surround view image of the trailer vehicle using the trailer image information, the tractor image information, and the first calibration information.