Cross-View Camera Layout for Unified Autonomous Vehicle Vision
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Solution Overview
Problem
Autonomous vehicles face challenges in navigating through complex environments due to the sheer volume of data from multiple cameras, which can lead to overlapping and redundant fields of view, limiting effective data analysis and navigation accuracy.
Innovation Solution
The implementation of a camera system with multiple cameras positioned to have overlapping fields of view, where each camera's optical axis crosses at least one crossing point, forming a combined field of view, allowing for comprehensive environmental monitoring and data integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple cameras are used to capture visual information, then the field of view coverage is improved, but the data redundancy and processing complexity increase
Solution Approach 1:
The patent segments the field of view into distinct regions, with each camera assigned to capture specific non-overlapping areas. The first camera captures a first region, the second camera captures a second region, and the third camera captures a third region, minimizing redundancy while ensuring complete coverage of the surrounding environment.
Solution Approach 2:
The patent arranges cameras in a three-dimensional configuration around the vehicle, using spatial distribution in multiple dimensions to achieve comprehensive coverage. By positioning cameras at different locations and orientations, the system captures visual information from various perspectives without requiring excessive overlap between fields of view.
2Measurement precision
If multiple cameras are positioned to cover all areas, then navigation accuracy is improved, but the volume of data to be processed increases
Solution Approach 1:
The patent assigns different functional roles to different camera regions based on their specific locations and viewing angles. Each camera is optimized to capture particular types of visual information relevant to its viewing zone, such as lane markings, traffic signs, or obstacles, thereby reducing unnecessary data while maintaining navigation precision.
3Loss of information
If cameras are arranged with overlapping fields of view, then redundancy is reduced, but the complexity of coordinating multiple optical axes increases
Solution Approach 1:
The patent pre-configures the camera positions and orientations during system installation to achieve optimal non-overlapping coverage. The optical axes are carefully aligned before operation, with the first optical axis, second optical axis, and third optical axis positioned to capture adjacent regions without significant overlap, eliminating the need for complex real-time coordination.
Data Source
AI summary
An imaging system is provided for a vehicle. In one implementation, the imaging system includes an imaging module, a first camera coupled to the imaging module, a second camera coupled to the imaging module, and a mounting assembly configured to attach the imaging module to the vehicle such that the first and second camera face outward with respect to the vehicle. The first camera has a first field of view and a first optical axis, and the second camera has a second field of view and a second optical axis. The first optical axis crosses the second optical axis in at least one crossing point of a crossing plane. The first camera is focused a first horizontal distance beyond the crossing point of the crossing plane and the second camera is focused a second horizontal distance beyond the crossing point of the crossing plane.