Vehicle Image Display Device Road Surface-Fixed Perspective Mode
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Solution Overview
Problem
Existing image display devices for vehicles struggle to maintain a stable perspective of assisting images, such as grids or white lines, when the vehicle is in motion, leading to unnaturalness and difficulty in grasping positional relationships between the vehicle and obstacles or road features.
Innovation Solution
An image display device with a camera and image processing section that generates a perspective image fixed to the road surface, scrolling it in unison with the vehicle's movement, allowing it to be superimposed over the captured image on a monitor, along with options for viewing field-fixed mode and adjustable brightness and transparency for improved visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a grid is displayed at a fixed position on the monitor, then the distance to road features can be judged when the vehicle is stopped, but the grid displaces relative to the captured image during steering operations, creating an unnatural feeling and making it difficult to grasp the positional relationship
Solution Approach 1:
The grid is transformed from a static fixed-position display to a dynamic display that moves in coordination with the captured image. The image processing section scrolls the grid together with the captured image during vehicle movement, maintaining their relative positional relationship and eliminating the unnatural feeling while preserving distance measurement functionality
Solution Approach 2:
A virtual grid image is generated and displayed in coordination with the captured image. The grid is not a physical overlay but a digital copy that can be scrolled and positioned virtually to match the movement of the captured image, allowing it to adapt to vehicle motion while maintaining measurement reference
2Stability of the object's composition
If the grid is scrolled in unison with the captured image during vehicle movement, then the positional relationship remains stable, but the grid may become less visible or harder to distinguish from the background
Solution Approach 1:
The grid is displayed with a color that differs from the background captured image to enhance visibility. By using color contrast, the grid remains distinguishable from the road and surrounding features even when scrolled in unison with the image, maintaining both stability and visibility
Solution Approach 2:
The transparency and brightness parameters of the grid are adjusted to optimize visibility. The grid can be displayed with appropriate transparency levels and brightness adjustments to ensure it remains visible against varying background conditions while maintaining the coordinated scrolling effect
Data Source
AI summary
Disclosed is an image display device that allows intuitive guidance of a vehicle body based on an assisting image displaced in a screen. The image display device includes an image processing section for displaying a captured image of a rear camera on a monitor. This image processing section includes a synthesis processing unit for displaying a perspective image providing a perspective in superposition over the captured image being displayed on the monitor and a display mode setting unit that realizes selection between a viewing field-fixed mode for displaying the perspective image in superposition with the perspective image being fixed within a viewing field of the monitor and a road surface-fixed mode for displaying the perspective image in superposition with allowing scrolling thereof in unison with a road surface.