Vehicle Image Rotation Control for Inclination Compensation
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Solution Overview
Problem
Conventional vehicle systems fail to provide real-time correction and accurate display of image data, especially when the vehicle is inclined, leading to difficulties in grasping the surrounding environment effectively.
Innovation Solution
A vehicle control apparatus that acquires image data and vehicle state data to perform rotation, enlargement, and position adjustments on the captured images, ensuring horizontal lines are parallel to the display region and displaying inclination angles, allowing for improved visibility and recognition of the vehicle's surroundings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image data is corrected only when instructed by the driver, then the system operation is simple, but real-time correction is not achieved and the driver cannot accurately grasp the surrounding environment during dynamic driving conditions
Solution Approach 1:
The system continuously acquires vehicle state data (acceleration, steering angle, etc.) and uses this feedback to automatically adjust and correct image data in real-time. The control portion processes image data based on current vehicle state, creating a closed-loop system that maintains accurate surrounding environment representation without requiring driver intervention.
Solution Approach 2:
The image correction system operates autonomously by self-adjusting based on vehicle state data. The control portion automatically performs rotation and position corrections without external instructions, making the system self-sufficient in maintaining accurate image representation during driving.
2Measurement precision
If vehicle inclination is detected by a vehicle height sensor, then the detection method is simple, but accurate inclination measurement is not achieved when wheels are not in contact with the ground
Solution Approach 1:
The system uses a multi-functional approach by combining multiple sensors (acceleration sensor for roll angle, steering angle sensor, and vehicle height sensor) to detect vehicle state under various driving conditions. This universal detection method works whether wheels are on or off the ground, adapting to different driving scenarios including off-road and aerial operations.
Solution Approach 2:
The system changes the detection parameters based on driving conditions by switching between different sensor inputs. When wheels are on the ground, vehicle height sensor data is used; when wheels are off the ground, acceleration sensor data for roll angle detection is used instead, allowing accurate inclination measurement across all conditions.
3Ease of operation
If captured image data is displayed without rotation control, then the display process is simple, but horizontal lines in the image are not parallel to the display region when the vehicle is inclined
Solution Approach 1:
The system dynamically adjusts image rotation based on real-time vehicle state data. The control portion continuously calculates the required rotation angle from acceleration and steering angle data, and rotates the captured image accordingly. This dynamic adjustment maintains proper horizontal alignment in the displayed image even as the vehicle moves and changes inclination.
Data Source
AI summary
A vehicle control apparatus of an embodiment includes an acquisition portion acquiring captured image data output from an imaging portion that is provided at a vehicle and that images a surrounding of the vehicle, and vehicle state data output from a vehicle state detection portion provided at the vehicle, and a control portion performing a rotation control on the captured image data based on an inclination in a left-right direction of the vehicle relative to a horizontal direction which serves as a direction included in a horizontal plane orthogonal to a direction of gravity, the inclination in the left-right direction of the vehicle being calculated from the vehicle state data, the control portion performing the rotation control in a manner that a horizontal line included in a subject captured in the captured image data is substantially parallel to a lateral-direction side with respect to a display region serving as an output destination.