Vehicle Object Recognition Threshold Control at High Speed
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Solution Overview
Problem
At high vehicle traveling speeds, the clarity of images captured can degrade, leading to lower recognition rates of pedestrians and other objects, potentially causing safety hazards due to missed detections and reduced driver attention.
Innovation Solution
An object recognition control device that acquires image data and traveling speed information, adjusting the recognition threshold for object detection based on speed, allowing for more accurate identification of pedestrians and other objects even at higher speeds by lowering the threshold for determining a person or object as recognized.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the traveling speed of the vehicle is increased, then the productivity of the vehicle is improved, but the measurement precision of object recognition is lowered
Solution Approach 1:
The patent applies dynamics by making the recognition threshold variable rather than fixed. The threshold is dynamically adjusted based on the vehicle's traveling speed - lowered when speed is high to compensate for degraded image quality, and raised when speed is low to maintain recognition accuracy. This dynamic adaptation resolves the contradiction between maintaining high speed and preserving measurement precision.
Solution Approach 2:
The patent changes the parameter of recognition threshold based on the parameter of traveling speed. By establishing a relationship where the threshold parameter is modified according to speed conditions, the system maintains effective object recognition across varying speed regimes, thus resolving the contradiction between speed improvement and precision degradation.
2Speed
If the traveling speed of the vehicle is increased, then the productivity of the vehicle is improved, but the reliability of object recognition is lowered
Solution Approach 1:
The system dynamically adjusts the recognition threshold based on real-time speed information. At high speeds where image quality degrades and recognition becomes less reliable, the threshold is lowered to increase the likelihood of detecting objects. This dynamic response maintains recognition reliability across different operating conditions while allowing high-speed travel.
3Speed
If the traveling speed of the vehicle is increased, then the productivity of the vehicle is improved, but the difficulty of detecting and measuring objects is increased
Solution Approach 1:
The patent changes the detection parameter (threshold) in response to speed changes. When traveling speed increases and detection becomes more difficult due to motion blur and image degradation, the threshold parameter is adjusted to make detection easier. This parameter adaptation compensates for the increased detection difficulty at high speeds.
Data Source
AI summary
An object recognition control device includes an image data acquisition unit configured to acquire image data captured by a camera that images a periphery of a vehicle; a traveling speed information acquisition unit configured to acquire information about a traveling speed of the vehicle; a recognition processing unit configured to recognize, as a specific object, the image data acquired by the image data acquisition unit in a case in which a score indicating a likelihood of the specific object is equal to or larger than a predetermined threshold; and a presentation processing unit configured to present, to a driver of the vehicle, information on the specific object recognized by the recognition processing unit. The recognition processing unit is further configured to lower the predetermined threshold when the information about the traveling speed acquired by the traveling speed information acquisition unit indicates that the traveling speed of the vehicle is high.