Lane Recognition via Sensor Fusion and Roadside Data
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Solution Overview
Problem
Existing systems for recognizing a vehicle's travelled lane struggle when lane lines are obscured by surrounding vehicles or are unclear, particularly during lane changes, especially at intersections or when turning.
Innovation Solution
A system that combines lane recognition using a camera with information from a road-side lane information transmission module and vehicle sensors, including a lane change detection unit that calculates horizontal movement and curvature to determine the final travelled lane, and communicates this information to surrounding vehicles or the vehicle's display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lane recognition is performed using only camera images, then the system structure remains simple, but lane recognition fails when lane lines are obscured by surrounding vehicles or are unclear
Solution Approach 1:
The patent combines multiple information sources (camera images, GPS coordinates, electronic map data, and road side transmission module data) into a unified lane recognition system. This merging of diverse data sources ensures continuous and reliable lane recognition even when individual sources fail, such as when lane lines are obscured by surrounding vehicles or are unclear.
Solution Approach 2:
The patent introduces road side transmission modules as intermediary components that provide lane information to vehicles. These modules act as mediators between the road infrastructure and the vehicle's navigation system, enabling reliable lane recognition in areas where camera-based detection alone is insufficient.
2Adaptability or versatility
If lane recognition relies on visible lane lines through camera, then the system remains simple, but it cannot recognize lanes at intersections or during lane changes when lines are not visible
Solution Approach 1:
The patent merges camera-based lane line detection with GPS-based position tracking and electronic map data. This combination enables the system to recognize lanes at intersections and during lane changes where traditional camera-only methods fail, as the GPS and map data provide contextual information about expected lane configurations.
Solution Approach 2:
The patent transitions from purely visual 2D image analysis to a multi-dimensional approach that incorporates spatial coordinates (GPS), temporal information (sequence of positions), and map data layers. This dimensional expansion enables lane recognition in scenarios where visual line detection is insufficient, such as at intersections or during lane changes.
3Reliability
If the system uses multiple data sources (camera, GPS, map information), then lane recognition reliability improves, but the processing complexity and computational load increase
Solution Approach 1:
The patent segments the lane recognition process into distinct functional modules: camera image processing module, GPS coordinate processing module, electronic map data processing module, and data fusion module. Each module handles specific data types independently, reducing processing complexity while maintaining high reliability through systematic integration of multiple data sources.
Data Source
AI summary
Disclosed are a system and a method of recognizing a travelled lane of a vehicle, which recognize a currently travelled lane by using an image obtained through a camera of a vehicle or information received from a road system. Further, the system and the method detect whether the vehicle changes a lane by using sensing data of the vehicle, current location information, road map data, and the like, and when it is confirmed that the vehicle changes a lane or enters a new lane, the system and the method make the vehicle immediately recognize a currently travelled lane by combining information about the change of a lane or the new lane with information about the first recognized travelled lane. Accordingly, the present invention may make a vehicle recognize a travelled lane even when it is difficult to recognize a lane by a camera, and rapidly obtain information about the change of a lane and an entry lane, thereby determining a final lane. Further, the present invention provides a corresponding vehicle and surrounding vehicles with information about the final lane, so that the information may be utilized in an advanced driver assistance system (ADAS) or a V2V application service.