Dynamic Transparency Index Lines for Vehicle Reversing Assist
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Solution Overview
Problem
Existing vehicle reversing assist systems obstruct visibility by superimposing guide lines on camera images, potentially causing drivers to overlook obstacles due to focused attention on these lines rather than the overall surroundings during backward travel.
Innovation Solution
A driving assist apparatus that dynamically adjusts the transparency of index lines based on vehicle behavior and driving states, ensuring that the index lines are semi-transparent when the vehicle is moving quickly or turning, thereby maintaining visibility of the surroundings and preventing oversight of obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If guide lines are superimposed on camera images to assist drivers in understanding steering timing and position, then driver guidance accuracy is improved, but visibility of the camera image is obstructed
Solution Approach 1:
The patent applies dynamics by making the guide line transparency adjustable rather than fixed. The transparency of the guide line is dynamically changed based on detection results from vehicle state detection means (such as vehicle speed, steering angle, or distance to obstacles). When the vehicle is stationary or moving slowly, the guide line is displayed with higher transparency to provide clear guidance. When the vehicle moves quickly or distance to obstacles decreases, the guide line transparency is reduced to improve camera image visibility and prevent overlooking obstacles.
2Measurement precision
If the guide line is displayed with high visibility to assist parking, then steering timing recognition is improved, but the driver may overlook obstacles due to focused attention on the guide line
Solution Approach 1:
The patent applies parameter changes by modifying the transparency parameter of the guide line based on vehicle state parameters. The display control means changes the transparency parameter of the guide line according to detection results such as vehicle speed, steering angle, or distance to obstacles. This dynamic parameter adjustment ensures that the guide line provides sufficient guidance information while preventing it from obscuring important visual information about obstacles in the environment.
3Productivity
If the guide line is always visible to maintain continuous guidance, then parking operation efficiency is improved, but visibility of the surrounding environment is reduced
Solution Approach 1:
The patent applies feedback by using vehicle state detection means to continuously monitor vehicle conditions (such as speed, steering angle, distance to obstacles) and using this feedback to dynamically adjust the guide line transparency. The display control means receives feedback from the detection means and automatically adjusts the guide line visibility accordingly, maintaining parking operation efficiency while ensuring environmental visibility when needed.
Data Source
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AI summary
A driving assist apparatus includes: an image obtaining unit (33) that obtains a peripheral image of a vehicle, which is captured by an image capturing device (21) provided in the vehicle; a display device (41) that is provided in the interior of the vehicle and displays the peripheral image; a display object generation unit (31) that generates a display object including an index line serving as an index for assisting a driver who drives the vehicle; a vehicle state detection unit that detects at least one of behavior of the vehicle and a state of a driving operation; a display type determining unit (32) that determines a transparent display type of the display object based on the detection result of the vehicle state detection unit; and a display control unit (34) that superimposes and displays the display object on the peripheral image, which is displayed on the display device (41), based on the determined transparent display type.