Vehicle Display Superimposing Navigation and Target Symbols

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing information display apparatuses for vehicles fail to effectively combine navigation information with traveling conditions in a superimposing mode, leading to user incongruity and limited recognition of targets, with color discrepancies causing visual discomfort and reduced user-friendly features.

Innovation Solution

An information display apparatus comprising a preview sensor, navigation system, recognizing unit, and display device that classifies and displays targets (such as automobiles, pedestrians, and obstructions) using different colors based on their types or danger levels, ensuring accurate representation of traveling conditions and navigation information in a superimposing mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If infrared image is displayed to show traveling condition, then target recognition is improved, but color accuracy deteriorates causing user incongruity

Engineering Contradiction:
Improvetarget recognitionVSAvoidcolor accuracy
Core Design Contradiction:
Measurement precisionVSIllumination intensity

Solution Approach 1:

The patent introduces a color conversion process as an intermediary between the infrared image capture and display. The color conversion unit converts the infrared image data into displayable color information that corresponds to the actual colors of targets in the visible spectrum, thereby maintaining both target recognition accuracy and color accuracy simultaneously.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If multiple targets are displayed with different colors to represent their types, then information differentiation is improved, but device complexity increases

Engineering Contradiction:
Improveinformation differentiationVSAvoidprocessing complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent applies color changes by assigning different display colors to different target types (e.g., pedestrians, vehicles, obstructions) based on their classification. This allows efficient differentiation of multiple targets using a simple and intuitive color-coding scheme, avoiding complex display mechanisms while maintaining high information differentiation.

Inventive Principle:
Principle #32Color changes

3Loss of information

If navigation information and traveling condition are displayed in superimposing mode, then information integration is improved, but visual clarity deteriorates

Engineering Contradiction:
Improveinformation integrationVSAvoidvisual clarity
Core Design Contradiction:
Loss of informationVSIllumination intensity

Solution Approach 1:

The patent applies local quality by selectively controlling the transparency and display characteristics of different regions in the superimposed display. Navigation information and traveling condition data are displayed with different visual properties in different areas of the screen, ensuring that each type of information maintains its clarity while being integrated in a single view.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS7356408B2Information display apparatus and information display method
Publication Date: 2008.04.08 SUBARU CORP
  • US7356408B2 patent drawing
  • US7356408B2 patent drawing
  • US7356408B2 patent drawing

AI summary

A recognizing unit recognizes targets located in front of the own vehicle based upon a detection result obtained from a preview sensor, and then, classifies the recognized targets by sorts to which these targets belong. A control unit determines information to be displayed based upon both the targets recognized by the recognizing unit and navigation information. A display device is controlled by the control unit so as to display thereon the determined information. The control unit controls the display device so that symbols indicative of the recognized targets are displayed to be superimposed on the navigation information, and also, controls the display device so that the symbols are displayed by employing a plurality of different display colors corresponding to the sorts to which the respective targets belong.