SVM Stop-Line Detection With Virtual Crosswalk Stop Control
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Solution Overview
Problem
Existing surround-view monitors (SVM) require manual activation and deactivation for front top-view images, which is inconvenient for users and may lead to non-compliance with stop-line regulations, especially at crosswalks and intersections.
Innovation Solution
A method and apparatus using SVM front top-view images to automatically detect stop lines or generate virtual stop lines, assisting vehicles to stop at crosswalks and intersections by integrating software functionality into an advanced driver assistance system (ADAS) controller, which includes stop-line detection and crosswalk detection, and controls the vehicle to stop based on detected or generated stop lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If SVM front top-view images are manually activated and deactivated, then the driver has control over the display, but user convenience deteriorates and stop-line compliance may be compromised
Solution Approach 1:
The SVM system automatically activates and maintains the front top-view display based on vehicle speed detection, eliminating the need for manual user intervention. The system serves itself by monitoring speed conditions and autonomously controlling the display state, thereby improving both user convenience and ensuring continuous availability for stop-line compliance
Solution Approach 2:
The system pre-activates the SVM front top-view display before the vehicle reaches stopping points by detecting speed reduction trends. This preliminary activation ensures the display is already available when the vehicle approaches crosswalks or intersections, preventing compliance issues without requiring reactive manual activation
2Use of energy by moving object
If SVM operates only at low speeds (≤10 km/h), then energy consumption is reduced, but the front top-view display becomes unavailable when needed for stop-line compliance
Solution Approach 1:
The SVM system dynamically adjusts its operational state based on real-time vehicle speed and deceleration patterns. Rather than using a fixed speed threshold, the system transitions between active and inactive states based on dynamic conditions, allowing the front top-view display to remain available during deceleration phases even when average speed exceeds 10 km/h, thus balancing energy efficiency with display availability
3Reliability
If stop line detection is performed in SVM images, then stop-line compliance is improved, but system complexity increases
Solution Approach 1:
The SVM image processing system performs multiple functions using the same image data: it displays the surround view for driver awareness and simultaneously conducts stop line detection for compliance assistance. By making the image processing system multi-functional, the patent avoids adding separate dedicated detection hardware, thereby improving reliability without proportionally increasing system complexity
Data Source
AI summary
A method and apparatus for assisting a vehicle to stop at crosswalks and intersections by using a surround view monitor (SVM). In particular, the method includes: obtaining a front top-view image of the vehicle by using the SVM, performing a stop line detection in the front top-view image, and performing a crosswalk detection in the front top-view image in response to no detection of a stop line. The method further includes: generating a virtual stop line in response to a detection of a crosswalk, and controlling the vehicle to stop based on the detected stop line or the generated virtual stop line.