Driving Support Device Blind Spot Image Segmentation
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Solution Overview
Problem
Existing driving support systems using wide-angle cameras distort the field of view, making it difficult for drivers to gauge distances and recognize blind spots, which are not visually accessible through traditional side mirrors.
Innovation Solution
A driving support device comprising a rear-lateral side monitoring camera, periphery monitoring cameras, and a driving support ECU that generates a bird's-eye view image, crops it to include blind spots, and combines it with an inverted rear-lateral side image for display, ensuring the field of view and visibility of blind spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a wide-angle camera is used to display a wide area, then the display range is improved, but the image becomes distorted and the field of view of the side mirror is not secured
Solution Approach 1:
The patent divides the monitoring area into two distinct segments: the side mirror field of view and the blind spot range. By segmenting the display content, the system can preserve the undistorted side mirror view while separately presenting the blind spot area, thus resolving the contradiction between wide display range and accurate distance perception
Solution Approach 2:
The patent transitions from a two-dimensional distorted wide-angle camera image to a three-dimensional virtual image that reconstructs the blind spot area. This dimensional transformation allows the system to display the blind spot range with proper spatial relationships, maintaining measurement precision while expanding the effective display range
2Loss of information
If a wide-angle camera is used to display a wide area, then the blind spot coverage is improved, but the image distortion makes it difficult to grasp the sense of distance
Solution Approach 1:
The patent creates a virtual copy of the blind spot area by synthesizing images from multiple cameras positioned at different locations. This virtual image copying technique reconstructs the blind spot range with accurate spatial relationships, eliminating distortion while maintaining complete blind spot coverage
Solution Approach 2:
The patent merges images from multiple periphery monitoring cameras to construct a comprehensive virtual image of the blind spot area. By combining multiple undistorted camera views, the system achieves both complete blind spot coverage and accurate distance perception
3Area of stationary object
If the field of view of the side mirror is expanded, then the blind spot range is reduced, but the traditional side mirror field of view is compromised
Solution Approach 1:
The patent introduces a display device as an intermediary that presents the blind spot information separately from the side mirror view. This intermediary display shows the virtual image of the blind spot area, allowing the side mirror to maintain its traditional field of view while the blind spot range is monitored through the additional display
Data Source
AI summary
Provided is a driving support device configured to: generate a bird's-eye view image around an own vehicle from periphery images acquired from a plurality of periphery monitoring cameras, and generate a cropped bird's-eye view image by cropping an image of a cropping range including a blind spot range from the generated bird's-eye view image; generate a rear-lateral side converted image by converting a rear-lateral side direction image acquired from a rear-lateral side monitoring camera into an image in which left and right are inverted; and generate a combined image in which the generated cropped bird's-eye view image and the generated rear-lateral side converted image are arranged, and control a display device such that the generated combined image is displayed by the display device.