Vehicle Door Display Using Lateral View and Extracted Lower Portion
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Solution Overview
Problem
Current vehicle door opening assistance systems, such as those using rear cameras and bird's-eye views, struggle to accurately depict obstacles near the vehicle, making it difficult for drivers to assess clearance and potential collisions, especially with reduced detail and height evaluation.
Innovation Solution
An aid device with an image sensor and processing unit generates a display showing the lateral environment with a superimposed representation of the vehicle's door in an open position, allowing for detailed visualization of obstacles and their height, while minimizing computing resources, and includes features like transparency and angle variations for improved visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a top view (bird's-eye view) is used to display the vehicle environment, then the driver can see the overall environment, but obstacles in the vicinity are represented with few details and height cannot be visually assessed
Solution Approach 1:
The patent transitions from a top-down 2D bird's-eye view to a lateral 2D view that preserves height information. By changing the viewing dimension from vertical projection to side view, the system maintains both comprehensive environment visibility and accurate obstacle height representation, allowing drivers to assess both clearance and height simultaneously.
2Ease of operation
If a full door representation is superimposed on the background, then the door position is clearly shown, but a large portion of the lateral environment is masked
Solution Approach 1:
The patent extracts only the lower portion of the door for superimposition on the lateral environment background. This selective extraction maintains the essential function of showing door position and movement trajectory while minimizing the occlusion of the lateral environment, allowing drivers to see both the door projection and surrounding obstacles simultaneously.
3Measurement precision
If a lateral environment view is used, then obstacles are shown in detail with height evaluation possible, but the computing resources required increase
Solution Approach 1:
The patent uses a simplified 2D graphical representation to copy and represent the door's position and movement trajectory on the lateral environment background. This graphical copying approach provides accurate visual information about door position and obstacle clearance without requiring complex 3D rendering or heavy computing resources, maintaining efficiency while delivering precise spatial information.
Data Source
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AI summary
The invention relates to a vehicle user assistance device comprising an image sensor, a processing unit, and a display screen. The processing unit is programmed to: - control the acquisition by the image sensor of a view of the vehicle's lateral environment, - generate an image (IM1) to be displayed comprising: - a background (F) representative of said lateral environment, determined according to the acquired view, and - superimposed on this background, a representation (V) of only the lower portion of a vehicle door, said door being in an open position, and then - control the display of said image by the screen. The invention also relates to an associated method of assisting a vehicle user.