Bird's-Eye Image Projection Surface Deformation at Vehicle Startup
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Solution Overview
Problem
Conventional image processing systems generate unnatural bird's-eye view images when the projection surface is deformed due to three-dimensional objects around a moving body, such as a vehicle, particularly after engine startup following parking.
Innovation Solution
An image processing device that includes a first determination module to detect deformation of the projection surface and a deformation module to adjust the surface based on accumulated past information, using VSLAM for position estimation and projection surface optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the projection surface is deformed according to three-dimensional objects around the moving body, then the image accuracy is improved, but the image becomes unnatural at operation start time
Solution Approach 1:
The system performs preliminary actions by accumulating projection surface deformation information during parking and using this pre-acquired data at operation start time. The information retaining module stores deformation parameters before the vehicle operates, so that when the engine starts, the system can immediately apply the appropriate projection surface deformation without needing to acquire new data, thus avoiding unnatural images while maintaining accuracy.
Solution Approach 2:
The system implements feedback by continuously monitoring the parking state and operation start conditions, then adjusting the projection surface deformation accordingly. The determination module detects whether the vehicle is in a parking state and uses this feedback to decide whether to apply pre-acquired deformation information or to acquire new information, ensuring natural and accurate images under different operating conditions.
2Measurement precision
If new projection surface deformation information is acquired every time, then the image accuracy is maintained, but the processing time increases
Solution Approach 1:
The system performs preliminary information acquisition during parking, which is a low-time-critical period. The information retaining module accumulates projection surface deformation information when the vehicle is parked, so that when the engine starts, the system can reuse this pre-acquired information immediately, avoiding time-consuming real-time acquisition while maintaining image accuracy.
Solution Approach 2:
The system changes the parameter of information acquisition timing from continuous to event-driven. Instead of acquiring information continuously or at every operation start, the system changes the acquisition trigger to parking state detection, and then reuses the stored parameters at operation start, significantly reducing processing time while maintaining accuracy through the information retaining module.
Data Source
AI summary
According to one embodiment, an information processing device includes: a first determination module that determines first information concerning deformation of a projection surface on which a peripheral image of a moving body is projected; and a deformation module that deforms the projection surface based on the first information. The first determination module includes an information retaining module that accumulates second information in the past used for determining the first information, and determines the first information based on the second information in the past at an operation start time of the moving body.