Vehicle Guide Line Color Alternation for Image Clarity
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Solution Overview
Problem
Existing vehicle driving assist devices increase the occupied area on the captured image by displaying guide lines, which can obscure important information like road surfaces and landscapes, and are not easily recognizable by color vision-impaired individuals.
Innovation Solution
A vehicle driving assist device that alters the color of the guide line in its length direction using multiple colors, with complementary hues and varying shadings, to maintain a small footprint on the image while ensuring clear recognition, including the use of a storage unit for color-combination patterns and brightness adjustments based on detected image attributes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If the guide line is displayed with shading part or adjacent side surface part to increase recognition, then the guide line becomes more recognizable, but the occupying area of the guide line on the captured image increases
Solution Approach 1:
The patent applies color changes by periodically altering the color of the guide line in its length direction. This creates a multi-color guide line that enhances visibility and recognition without requiring additional width or area extensions. The color variation provides visual contrast that makes the guide line easily distinguishable from the background captured image while maintaining a compact footprint.
Solution Approach 2:
The patent changes the visual parameters of the guide line by introducing periodic color variations along its length. This parameter change (from single color to multi-color pattern) increases the guide line's detectability and recognition ease without modifying its spatial dimensions, thereby resolving the contradiction between recognition difficulty and occupying area.
2Area of stationary object
If a monochromatic guide line is used, then the guide line area is minimized, but color vision-impaired persons cannot easily recognize the guide line
Solution Approach 1:
The patent directly addresses this contradiction by implementing periodic color changes along the guide line. Instead of using a single monochromatic color, the guide line displays multiple colors in sequence. This ensures that color vision-impaired persons can recognize the guide line through color contrast and variation, while the guide line maintains its original width and area without expansion.
3Area of stationary object
If the guide line area is made small, then the captured image visibility is maximized, but the guide line recognition becomes difficult
Solution Approach 1:
The patent resolves this contradiction by using periodic color changes along the guide line's length direction. The multi-color pattern enhances visual recognition and makes the guide line easily distinguishable from the background, allowing the guide line to maintain a small area that does not obscure the captured image while remaining highly recognizable.
Data Source
AI summary
Provided is a vehicle driving assist device which can clearly display superimposing guide lines on an image captured from the surrounding area of a vehicle without increasing the areas of the superimposing lines. The vehicle driving assist device displays an image captured from the surrounding area of a vehicle on a vehicle monitor. The vehicle driving assist device comprises: an imaging unit mounted in a vehicle for capturing the image from the surrounding area of the vehicle; and an image processing unit for displaying superimposing guide lines on the image output from the imaging unit. The image processing unit displays the guide lines in a manner such that colors are periodically altered in the length directions thereof and displayed.