Vehicle Object Detection Using Pre-indication Speed Analysis
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Solution Overview
Problem
Existing detection systems for objects approaching a vehicle lack precision in determining sudden movements, making it difficult to provide effective driving assistance.
Innovation Solution
A detection apparatus comprising a pre-indication detection unit, a movement information acquisition unit, and an approach determination unit that analyzes speed changes to accurately determine if an object is approaching the vehicle's travel direction, using thresholds and statistical periods to enhance detection precision and balance sensitivity and erroneous detection frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detection is based solely on movement information, then the detection process is simple, but the precision of detecting sudden approach is insufficient
Solution Approach 1:
The system performs preliminary detection of pre-indication (subtle movement patterns) before the object actually approaches suddenly. This preliminary action allows the system to prepare and switch to a more sensitive detection mode in advance, improving overall detection precision without requiring complex continuous monitoring at maximum sensitivity.
Solution Approach 2:
The detection process is segmented into two distinct stages: pre-indication detection (detecting subtle early signs of approach) and approach determination (confirming sudden approach based on movement information). This segmentation allows each stage to use optimized detection methods appropriate to its specific task, balancing precision and complexity.
2Reliability
If detection sensitivity is increased to detect all approaches, then more objects are detected, but the frequency of erroneous detections increases
Solution Approach 1:
The system performs preliminary detection of pre-indication (subtle movement patterns) before confirming a sudden approach. This preliminary filtering stage reduces false positives by only triggering full detection when genuine pre-indication signs are present, thereby maintaining high sensitivity while reducing erroneous detections.
Solution Approach 2:
The system uses feedback from the pre-indication detection stage to adjust the detection threshold and parameters in the approach determination stage. When pre-indication is detected, the system activates more sensitive detection modes; when no pre-indication is present, it maintains lower sensitivity, thus balancing detection reliability with error reduction.
Data Source
AI summary
A jump-out determination unit determines whether or not an object is approaching a travel direction of a vehicle based on movement information relating to movement of the object, the movement information having been acquired by a speed variation calculation unit after a pre-indication of that the object approaches the travel direction of the vehicle is detected by a jump-out pre-indication calculation unit of a detection apparatus. As a result, the sudden approach of the object toward the travel direction, which is difficult to determine solely from the movement information relating to the object, can be detected with improved precision.