Vehicle Image Display Range Adjustment for Illuminated Regions
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Solution Overview
Problem
Conventional image display systems for vehicles struggle to provide adequate illumination in dark environments, leading to poor visibility of composite images displayed on in-vehicle screens, as the auxiliary light sources installed on vehicles are insufficient to illuminate the entire region that can be displayed, resulting in dark regions with low visibility.
Innovation Solution
An image generation apparatus that adjusts the image display range based on the capabilities of the auxiliary lighting system, reducing the display range to only the areas that can be illuminated, and increasing the size of the subject image within this range to improve visibility, thereby minimizing the need for the driver to view poorly illuminated areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the image display range is expanded to show a broader region around the vehicle, then the coverage area increases, but the visibility of the subject image deteriorates in dark regions not illuminated by the auxiliary light source
Solution Approach 1:
The patent applies local quality by differentiating the display characteristics between illuminated and non-illuminated regions. The image controller identifies dark regions that are not illuminated by the auxiliary light source and applies different processing (reducing display range or adjusting brightness) to these specific regions while maintaining normal display in illuminated areas, thereby optimizing overall visibility without sacrificing coverage.
2Area of stationary object
If the auxiliary light source illuminates a larger region, then more area becomes visible, but the light intensity per unit area decreases due to limited capabilities of the auxiliary light source
Solution Approach 1:
The patent merges the information from multiple cameras (front, rear, left, right) to generate a composite image that represents the entire surrounding region. By combining the shot images and identifying dark regions across the composite view, the system can coordinate the auxiliary light source to illuminate specific areas that need attention, optimizing the limited lighting capability to cover the most critical regions.
3Area of stationary object
If the composite image includes dark regions not illuminated by the auxiliary light source, then the display coverage is comprehensive, but the driver may be distracted by poor visibility in these regions
Solution Approach 1:
The patent extracts and identifies dark regions from the composite image that are not illuminated by the auxiliary light source. By detecting these poorly illuminated areas, the system can then take appropriate actions such as reducing the image display range to exclude these regions or adjusting their display characteristics, thereby removing the distraction element that would otherwise cause driver attention to be diverted to low-quality visual information.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the visibility of the composite image by ensuring only brightened regions are displayed, reducing the frequency of viewing poorly illuminated areas and improving the overall visibility of the subject image, thus aiding the driver in navigating through dark environments.
Implementation Method 1
a lighting system used for driving and an auxiliary light source to illuminate a region to be shot with a camera when a surrounding environment is relatively dark
Data Source
AI summary
An image display system makes a range of a region around a vehicle to be shown in a composite image as a subject image in a case where an auxiliary lighting system emits auxiliary light, smaller than that in a case where the auxiliary lighting system does not emit auxiliary light. As a result, an image display system can reduce the number of times when a user has to watch the subject image of an object in a region not illuminated by the auxiliary lighting system.