Surround-View Trajectory Overlay for Height Collision Recognition
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Solution Overview
Problem
Existing technologies fail to effectively indicate the possibility of collision with obstacles in the height direction for movable bodies, such as vehicles, as they only overlay predicted trajectories on the road surface without accounting for obstacles above or on the surface, leading to unclear recognition of potential contact.
Innovation Solution
An image processing apparatus and method that overlays a display indicating a course trajectory of a movable body on a surrounding image, adjusting the display when an obstacle is present in the travel direction and contact is imminent, allowing for recognition of potential height-direction collisions by positioning the trajectory at the specific portion's height from the road surface and changing the display accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the predicted trajectory is overlaid at constant intervals on the road surface, then the driver can recognize distance, but the possibility of collision with obstacles above or on the road surface cannot be effectively indicated
Solution Approach 1:
The patent transitions from overlaying trajectory only on the road surface (2D plane) to displaying trajectory at the actual height position of vehicle portions in 3D space. This dimensional change allows the trajectory to reflect both horizontal position and vertical height, enabling simultaneous indication of distance and collision risk with obstacles at different heights.
Solution Approach 2:
The patent applies different display characteristics to different portions of the trajectory based on their spatial relationship with obstacles. When a trajectory portion is determined to be in contact with an obstacle, it is displayed with distinct visual characteristics (e.g., different color or pattern) compared to non-contact portions, providing localized information about collision risk.
2Device complexity
If the trajectory is displayed only on the road surface, then the display is simple, but the recognition of potential contact with obstacles is unclear
Solution Approach 1:
The system calculates and displays the trajectory at the actual height position of specific vehicle portions (e.g., bumper, roof) rather than flattening it to the road surface. This maintains display simplicity while improving reliability by showing whether the trajectory intersects with obstacles at their respective heights.
3Productivity
If the trajectory display does not account for obstacle height, then the processing is straightforward, but the visual cues for height-direction contacts are insufficient
Solution Approach 1:
The system applies different visual characteristics to trajectory portions based on their contact status with obstacles. Contact portions are displayed with distinct features (e.g., red color, dashed line) while non-contact portions use different features (e.g., green color, solid line), making height-direction contact recognition immediately obvious without complex processing.
Data Source
AI summary
An image processing apparatus (10) includes an interface (12) configured to acquire a surrounding image of a moveable body (1) and a processor (12) configured to overlay a display indicating a course trajectory of a specific portion of the moveable body (1) in a travel direction of the moveable body (1) on the surrounding image at a position corresponding to the height of the specific portion from a road surface (3). The processor (12) is configured to change the display indicating the course trajectory when an obstacle, included in the surrounding image and present in the travel direction of the moveable body (1), and the course trajectory of the specific portion are in contact.