Onboard Camera Image Processing for Optical Axis Adjustment
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Solution Overview
Problem
Image processing such as dynamic range and edge enhancement can introduce noise during optical axis adjustment of onboard cameras, making it difficult to accurately adjust the camera's optical axis.
Innovation Solution
The onboard imaging device relaxes at least one of dynamic range processing and edge enhancement processing when the camera is in optical axis adjustment mode, using different relaxation settings to optimize image clarity for optical axis adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If dynamic range processing and edge enhancement processing are applied to captured images to make them easier for vehicle occupants to view, then image quality for display is improved, but noise is introduced that makes optical axis adjustment difficult
Solution Approach 1:
The patent applies dynamics by making the image processing parameters adjustable based on the operational mode. The control unit dynamically switches between strong processing (for display) and relaxed processing (for calibration) depending on whether the camera is in normal operation or optical axis adjustment mode, resolving the contradiction between viewing ease and measurement precision
Solution Approach 2:
The patent changes the processing parameters of dynamic range and edge enhancement based on the operational context. By adjusting the degree of processing relaxation according to the mode (calibration vs. display), the system optimizes both image quality for viewing and accuracy for measurement without permanent compromise to either function
Data Source
AI summary
An onboard imaging device for capturing a situation around a vehicle includes an onboard camera provided on the vehicle and directed towards a surrounding of the vehicle; and a control unit configured to control the onboard camera to perform image processing including dynamic range processing and edge enhancement processing applied to an image captured by the onboard camera. The onboard camera has an optical axis adjustment mode for adjusting an optical axis using the captured image. The control unit controls the onboard camera to relax at least one of the dynamic range processing and the edge enhancement processing when the onboard camera is in the optical axis adjustment mode, compared to when the onboard camera is not in the optical axis adjustment mode.