Autonomous Vehicle Recognition Result Presentation for Occluded Pedestrians
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Solution Overview
Problem
Autonomous vehicles face challenges in recognizing individuals getting out of stationary vehicles, especially when the person is hidden behind the vehicle body or door, making it difficult for them to determine if it's safe to walk in front of the autonomous vehicle.
Innovation Solution
A recognition result presentation apparatus that detects a person appearance area on the road and presents a recognition result to the individual, using light, sound, or image projections to notify them that the autonomous vehicle has recognized their presence, thereby ensuring safe navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If autonomous vehicles use standard detection systems, then they can detect visible objects on the road, but they cannot recognize persons hidden behind vehicle bodies or doors
Solution Approach 1:
The system performs preliminary detection by identifying the vehicle body and door positions before the person fully emerges. The detection unit predicts the person appearance area based on vehicle door open/close states, allowing the system to anticipate where a person will appear and prepare recognition in advance, even when the person is initially hidden.
Solution Approach 2:
The patent introduces an intermediary detection mechanism that detects the vehicle door state and predicts the person appearance area. This intermediary prediction acts as a mediator between the direct detection of the vehicle body and the eventual detection of the person, enabling the system to recognize persons who would otherwise be occluded by the vehicle body.
2Reliability
If the system increases detection coverage to recognize hidden persons, then recognition accuracy improves, but the complexity of the detection system increases
Solution Approach 1:
The detection system is segmented into distinct functional units: a vehicle body detection unit that identifies the vehicle, a door state detection unit that monitors door open/close states, and a person appearance area prediction unit that calculates where the person will appear. This segmentation allows each unit to specialize in a specific detection task, improving overall reliability while managing system complexity through modular design.
Solution Approach 2:
The detection unit is designed with multi-functionality, serving both to detect the vehicle body and to predict person appearance areas based on door states. This universal detection unit reduces the need for separate specialized systems, thereby improving person recognition reliability without proportionally increasing system complexity.
3Object-affected harmful factors
If the autonomous vehicle slows down to ensure safety, then collision prevention improves, but the efficiency of valet parking operations decreases
Solution Approach 1:
The system continuously monitors the person appearance area and provides real-time feedback to the autonomous vehicle's control system. When a person is detected or predicted to appear in the vehicle's path, the feedback triggers an immediate safety response. This continuous feedback loop allows the vehicle to maintain normal speed during safe operations and only slow down when necessary, thereby preventing collisions while minimizing impact on valet parking efficiency.
Solution Approach 2:
The autonomous vehicle's speed is dynamically adjusted based on real-time detection results. The vehicle maintains normal operating speed when no persons are detected in critical areas, but automatically slows down or stops when persons are detected or predicted to appear. This dynamic speed adjustment optimizes both safety and operational efficiency by avoiding unnecessary deceleration during safe conditions.
Data Source
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AI summary
An apparatus and a method capable of accurately recognizing that a person will appear on a road and certainly notifying the person that an autonomous moving body has recognized a place where the person will appear are disclosed An apparatus according to an embodiment of the present disclosure detects, as a recognition target, a person appearance area, in which a person will appear, formed by a recognition target presentation apparatus on a road and presents, to the person, a result of recognition indicating that the autonomous moving body has recognized the person appearance ares as a result of the detection of the recognition target.