Around View Monitoring Parking Line Generation
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Solution Overview
Problem
Conventional around-view monitoring (AVM) systems fail to display clear parking lines when they are obstructed by other vehicles during parking assistance, hindering the driver's ability to safely park the vehicle.
Innovation Solution
An AVM apparatus and method that includes a camera module for capturing video images, a display unit for showing the AVM video, and a control unit to detect and track parking lines, generating an imaginary parking line when either the first or second parking line is not visible, ensuring the display unit outputs the AVM video with the imaginary line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AVM system displays only detected parking lines, then the system complexity remains low, but the parking assistance reliability deteriorates when lines are blocked by other vehicles
Solution Approach 1:
The system performs preliminary tracking of parking lines across multiple video frames before displaying them. By continuously tracking and predicting line positions in advance, the system maintains reliable parking guidance even when lines are temporarily blocked, resolving the contradiction between reliability and complexity.
2Reliability
If the AVM system generates imaginary parking lines to compensate for blocked lines, then the parking assistance reliability improves, but the device complexity increases due to additional processing requirements
Solution Approach 1:
The system creates imaginary parking lines as copies of previously tracked lines when detection fails. By generating virtual representations of blocked lines based on historical tracking data, the system maintains display reliability without requiring complex real-time reconstruction algorithms, thus balancing reliability improvement with acceptable processing complexity.
3Measurement precision
If the AVM system continuously tracks parking lines across multiple frames, then the measurement precision of line position improves, but the loss of time for processing increases
Solution Approach 1:
The system continuously tracks parking lines across multiple video frames to maintain precise position information. By performing uninterrupted tracking and prediction operations, the system achieves high measurement precision for line positions while managing processing time through efficient frame-by-frame analysis rather than periodic sampling.
Data Source
AI summary
An around-view monitoring (AVM) apparatus including a camera module for obtaining a plurality of video images from around a vehicle; a display unit for displaying an around-view video image; and a control unit for composing the plurality of video images to generate an around-view video image, detecting a first parking line and a second parking line from the around-view video image, tracking the detected first and second parking lines, and generating an imaginary parking line when any one of the first and second parking lines is not tracked to control the display unit to output the around-view video image.