Stereovideo Camera Wrong-Way Detection via Visual Road Features
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Solution Overview
Problem
Existing methods for detecting wrong-way travel on directional roadways, such as freeways or expressways, are not reliable due to delayed data from navigation units, making it difficult to identify vehicles traveling against the prescribed direction before they enter the wrong route.
Innovation Solution
A method utilizing a stereovideo camera to record visual road features, such as lane widths, markings, and road signs, to determine if a vehicle is on a directional roadway and to identify wrong-way travel by comparing these features to standard regulations, enhancing the robustness and reliability of the detection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If navigation units are used to detect wrong-way travel, then detection capability is provided, but detection reliability is insufficient due to delayed data
Solution Approach 1:
The system performs preliminary detection of wrong-way travel by analyzing visual road features (lane markings, road signs, shoulder positions) before the vehicle actually enters the wrong route. This allows early warning to be issued while the vehicle is still approaching the directional roadway, not after navigation data becomes available
Solution Approach 2:
Visual road features serve as an intermediary between the vehicle and the navigation system. Instead of relying directly on delayed navigation data, the system uses real-time visual recognition of road features as a mediator to detect wrong-way travel conditions earlier and more reliably
2Reliability
If visual road feature recognition is used, then detection reliability increases, but system complexity increases
Solution Approach 1:
The visual road feature recognition system serves multiple functions: it identifies the type of roadway (directional vs. non-directional), determines travel direction, and detects wrong-way conditions. This multi-functionality reduces the need for separate specialized systems
Solution Approach 2:
The system uses existing vehicle components (camera, processor) that are already part of modern vehicles for safety and comfort systems. The visual recognition system leverages these existing resources rather than requiring entirely new dedicated hardware
Data Source
AI summary
A method is described for the plausibility checking for wrong-way travel of a motor vehicle on a directional roadway of the road, at least one visual road feature being recorded and, with the aid of the visual road feature, it is determined whether the motor vehicle is located on a directional roadway. Furthermore, a control and recording device for the plausibility checking for wrong-way travel of a motor vehicle on a directional roadway of a road is provided, having a recording arrangement for recording at least one visual road feature and a determining arrangement for determining, with the aid of the visual road feature, whether the motor vehicle is located on a directional roadway.