Vehicle Imaging Shift Correction for Reliable Distance Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle external environment imaging systems face reliability issues due to changes in imaging range and angle of view caused by vehicle vibrations and attachment shifts, which affect the accuracy of distance and direction measurements for automated driving and driving assist systems.
Innovation Solution
A vehicle external environment imaging apparatus with multiple imaging devices that perform duplicated imaging of common regions, using a controller to generate correction information based on the imaging position, allowing for reliable shift correction and improved accuracy in distance and direction measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple imaging devices are disposed to perform duplicated imaging of common regions, then measurement reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the functions of multiple imaging devices by having them capture images of the same common region from different positions. The controller integrates these multiple images to generate correction information, combining the advantages of multiple sensors while managing complexity through coordinated processing.
Solution Approach 2:
The patent uses multiple imaging devices to create duplicate images of the same region. These copied images from different positions are then processed to generate correction information, allowing the system to compensate for position shifts without requiring a single complex imaging device.
2Measurement precision
If correction information is generated based on imaging position, then measurement precision is improved, but processing complexity increases
Solution Approach 1:
The controller generates correction information in advance by analyzing the imaging positions of multiple imaging devices. This preliminary correction data is then applied to subsequent distance and direction measurements, improving precision without requiring complex real-time processing during actual measurement.
Solution Approach 2:
The patent introduces correction information as an intermediary element between the raw imaging data and the final distance/direction measurements. This intermediary layer simplifies the processing by pre-calculating position-based corrections that can be applied systematically to improve measurement precision.
Data Source
AI summary
A vehicle external environment imaging apparatus includes imaging devices and a controller. The imaging devices are disposed on a vehicle to perform imaging of a vehicle external environment. The controller generates information regarding a distance or a direction of a vehicle-external imaging target with imaging images of the imaging devices. At least two imaging devices are disposed on the vehicle to be able to perform duplicated imaging of a common imaging region. The controller generates, on the basis of a distance and a direction in an imaging image obtained by a first one of the at least two imaging devices, correction information regarding a distance, a direction or both of the vehicle-external imaging target based on an imaging position which is to be used in a monocular process on an imaging image of at least one the at least two imaging devices that is different from the first one.