Virtual Perspective Image Generation for Vehicle Periphery Visibility
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Solution Overview
Problem
Existing in-vehicle perspective image systems clutter the view of the vehicle's periphery with unnecessary vehicle body parts, reducing visibility and requiring a long time to scan the surroundings, as the line of sight must cover a wide range, making it cumbersome for users to check the vehicle's periphery.
Innovation Solution
An image generation device mounted on the vehicle that adjusts the virtual perspective's position and angle to minimize the displayed vehicle body parts, allowing for improved visibility of the periphery by moving the virtual perspective along the vehicle's cabin edges and altering the line of sight's angle to circle the surroundings efficiently, while avoiding non-projection areas in the projection plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the line of sight of the virtual perspective is made to face towards the rear of the vehicle to indicate the entire periphery, then the coverage range of the periphery is improved, but the vehicle body image indicates parts from front seat to rear end which disturbs the visibility of the photographic subject image
Solution Approach 1:
The virtual perspective position is made dynamic rather than fixed, allowing it to move along the cabin edges in correspondence with the line of sight direction. This enables the system to adapt the vehicle body display area dynamically, showing only necessary parts when the line of sight faces rearward while maintaining visibility of photographic subject images.
Solution Approach 2:
Different parts of the vehicle body are displayed with different transparency or visibility characteristics based on their relevance to the current line of sight direction. The system selectively displays or hides specific vehicle body parts (front seat, rear end) depending on the viewing direction, optimizing both coverage and visibility.
2Area of stationary object
If the line of sight is made to face towards an entire target range of the periphery while gradually altering the direction, then the coverage of surroundings is improved, but it takes a relatively long time period which makes it troublesome for users
Solution Approach 1:
The system pre-defines optimal virtual perspective positions along the cabin edges for different line of sight directions. When the line of sight direction changes, the virtual perspective position is immediately adjusted to the pre-determined optimal position, eliminating the need for gradual alteration and reducing the time required to check the entire periphery.
3Ease of operation
If the position of the virtual perspective is fixed to the driver's perspective position, then the user can intuitively recognize the shape of the periphery, but the vehicle image indicates many parts of the vehicle body beyond necessity
Solution Approach 1:
The virtual perspective position transitions from a fixed driver's perspective to a dynamic position that moves along the cabin edges. This allows the system to maintain intuitive recognition while minimizing the number of vehicle body parts displayed by positioning the virtual perspective optimally relative to the line of sight direction.
Data Source
AI summary
An image generation unit uses a plurality of captured image data and vehicle body data of a vehicle to continuously generate a virtual perspective image indicating the vehicle body of the vehicle and the periphery of the vehicle as seen from a virtual perspective (VP) positioned within the cabin of the vehicle. An image control unit alters the angle in a plan view of the line of sight of the VP in a manner such that the line of sight circles the surroundings of the vehicle, and moves the position of the VP in the front-back direction of the vehicle.