Vehicle Image Display with Variable Reduction for Peripheral Object Recognition
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Solution Overview
Problem
Conventional image display systems for drivers may fail to recognize objects around the vehicle due to undistorted images, as the driver's line of sight is primarily forward, making it difficult to identify objects in the peripheral vision.
Innovation Solution
An image generating device that captures images with a wide-angle lens, detects objects using sensors, and adjusts the image reduction degree of each imaging area to display the object's location in an easily visible state, ensuring the driver can recognize objects around the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If undistorted images are displayed in the forward direction, then the driver's line of sight is maintained, but objects in peripheral areas cannot be recognized
Solution Approach 1:
The patent transitions from a single forward-facing display dimension to a multi-dimensional display system that incorporates peripheral imaging areas. The display unit shows not only the forward view but also left and right peripheral areas, effectively adding spatial dimensions to the driver's visual information space. This allows object recognition in peripheral areas without requiring the driver to change their line of sight.
2Area of stationary object
If wide-angle lens is used to capture peripheral images, then broad view is achieved, but image distortion occurs
Solution Approach 1:
The patent applies different image processing qualities to different regions of the display. The forward direction image maintains standard undistorted quality, while the peripheral imaging areas (left and right) apply distortion correction specifically tailored to those regions. This local quality approach allows each area to have optimal image characteristics for its viewing purpose.
Solution Approach 2:
The patent changes the distortion correction parameters based on the imaging area. Different correction degrees are applied to the left and right peripheral areas compared to the forward area. By adjusting the distortion correction parameter according to the specific imaging region, the system achieves accurate representation across the entire wide-angle field without uniform distortion artifacts.
3Ease of operation
If peripheral imaging areas are displayed with same reduction degree, then uniform display is achieved, but objects in peripheral areas are not easily visible
Solution Approach 1:
The patent applies different reduction degrees to different imaging areas based on their importance and visibility requirements. The peripheral areas where objects are detected or where better visibility is needed are displayed with smaller reduction (larger size), while other areas maintain standard reduction. This creates a non-uniform but functionally optimized display that enhances object visibility in critical regions.
Data Source
AI summary
An ECU captures an image of an imaging region around an own vehicle, and acquires image data, the imaging region being configured by a plurality of imaging areas. The ECU determines whether the object is present in the imaging areas, on the basis of detection results of an object present around the own vehicle. The ECU selects a target area to be displayed in an easy-to-see state from among the plurality of imaging areas, on the basis of determination results. The ECU reduces and corrects the image data of each imaging area such that an image of the target area is displayed in the easy-to-see state compared to an image of each imaging area to generate display image data.