3D Reversing View with Wheel Trajectory Mapping
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Solution Overview
Problem
Conventional backing viewing systems provide limited views of the surroundings when reversing a vehicle, making it difficult for drivers to accurately maneuver and avoid obstacles due to the restricted view of cameras, even with wide-angle or fisheye lenses.
Innovation Solution
A driver-assistance method and apparatus that calculates the vehicle's movement trajectory and combines it with panoramic images to create a 3D model, allowing the display of the trajectory from an upper rear to a lower front viewing angle, providing a clear representation of the vehicle's surroundings and movement path during reversing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional cameras with wide-angle or fisheye lenses are used to capture rear images, then the viewing angle is widened, but the view remains limited and surrounding scenes are not clearly displayed
Solution Approach 1:
The patent transforms the conventional 2D rearview image into a 3D model of the surrounding environment. By constructing a three-dimensional representation of the space around the vehicle and mapping the movement trajectory within this 3D space, the system provides comprehensive spatial information that overcomes the limitations of flat 2D images, allowing drivers to perceive depth, distance, and surrounding objects more accurately.
Solution Approach 2:
The patent embeds multiple layers of information within the display system. The 3D model contains the movement trajectory, which itself contains trajectory points with associated image data. This nested structure allows the trajectory to be visualized with rich contextual information about surrounding scenes at different depth levels, providing both macro spatial awareness and micro detail visibility.
Data Source
AI summary
A driver-assistance method and a driver-assistance apparatus are provided. In the method, a movement trajectory of wheels in surroundings of a vehicle when the vehicle moves are calculated. Multiple cameras disposed on the vehicle are used to capture images of multiple perspective views surrounding the vehicle, and the images of the perspective views are transformed into images of a top view. A synthetic image surrounding the vehicle is generated according to the images of the perspective views and the top view. Finally, the synthetic image and the movement trajectories are mapped and combined to a 3D model surrounding the vehicle and a movement image including the movement trajectories having a viewing angle from an upper rear side to a lower front side of the vehicle is provided by using the 3D model when backing up the vehicle.