Bird's-eye View Video Generation for Turning Vehicle Safety
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Solution Overview
Problem
Drivers face difficulties in checking surrounding areas when turning a vehicle, as side mirrors and rearview mirrors do not adequately display information about the direction that needs attention during turns.
Innovation Solution
A bird's-eye view video generation device that captures surroundings videos and estimates vehicle movement to generate a bird's-eye view video, positioning a virtual vehicle image on the opposite side of the turning direction, ensuring a wider display of relevant areas when decelerating or accelerating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If side mirrors and rearview mirror are used to check surroundings during turns, then the driver can monitor the rear and side areas, but the area where information to note is displayed is limited and difficult to check effectively
Solution Approach 1:
The patent transitions from 2D mirror reflections to a 3D bird's-eye view display, providing comprehensive surroundings information including areas blind to traditional mirrors. This dimensional change allows drivers to see overhead and side areas simultaneously, resolving the information loss problem during turns.
Solution Approach 2:
The patent introduces a bird's-eye view display system as an intermediary between the driver and surroundings information. This mediator processes camera feeds and presents critical areas through graphical overlays and highlighted zones, making it easier for drivers to check surroundings during turns without direct visual scanning.
2Area of stationary object
If the bird's-eye view video displays the vehicle in the center, then the overall surroundings are visible, but the critical areas in the turning direction are not displayed widely enough
Solution Approach 1:
The patent makes the bird's-eye view display dynamic by adjusting the vehicle image position based on turning direction and speed. During turns, the vehicle image shifts toward the opposite side to expand the display area of critical areas in the turning direction. This dynamic adjustment is achieved through processing vehicle sensor data and modifying the video composition in real-time.
Solution Approach 2:
The patent changes display parameters including vehicle image position, video composition ratio, and highlighted area emphasis based on vehicle speed and turning angle. At higher speeds or sharper turns, the system adjusts these parameters to prioritize display of critical areas, resolving the contradiction between overall visibility and critical area emphasis.
3Adaptability or versatility
If the bird's-eye view video is generated using standard processing, then the video generation is straightforward, but the display does not adapt to vehicle movement and turning conditions
Solution Approach 1:
The patent creates a multi-functional video generation device that not only generates bird's-eye view videos but also processes vehicle sensor data, determines turning conditions, adjusts display parameters, and highlights critical areas. This universal device adapts to various vehicle movement conditions through integrated processing of multiple data sources and conditional logic.
Solution Approach 2:
The system implements feedback loops where vehicle sensor data (speed, steering angle, acceleration) continuously informs display adjustments. The video generation device receives real-time vehicle state information, processes it through conditional logic, and automatically adjusts the bird's-eye view display accordingly, enabling adaptability without requiring complex manual intervention.
Data Source
AI summary
A bird's-eye view video generation device includes a video acquisition unit configured to acquire surroundings videos obtained by capturing videos of surroundings of a vehicle; a vehicle information acquisition unit configured to acquire vehicle information to estimate move of the vehicle in a turning direction; and a controller configured to, when move of the vehicle in the turning direction is estimated based on the vehicle information that is acquired by the vehicle information acquisition unit, generate a bird's-eye view video obtained by changing a position to display the bird's-eye view video containing a virtual vehicle image such that a surroundings video in a direction that has to be checked in the estimated turning direction is displayed widely. The generated bird's-eye view video is desolated by a display controller on a display panel.