Head-Up Display Blur Correction for Vehicle Vibration

Solution Overview

Problem

Existing head-up display systems face increased load and potential overheating issues when constantly correcting virtual image positions due to vehicle vibrations, leading to slowed processing speeds and discomfort for drivers.

Innovation Solution

A head-up display system that includes an image acquisition unit, vibration information acquisition unit, and image correction unit, which generates a corrected image by blurring the contour of graphics based on vibration information to reduce visual mismatch and discomfort, using a blurring correction method that adjusts brightness and saturation to stabilize the virtual image display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a correction to move the display position of the virtual image is performed every time the vehicle experiences vibration, then the virtual image stability is improved, but the processing speed slows down and the device size increases

Engineering Contradiction:

Improvevirtual image stabilityVSAvoidprocessing speed

Core Design Contradiction:

Stability of the object's compositionVSSpeed

Solution Approach 1:

The patent extracts only the essential correction information from vibration data - specifically the vertical component of displacement amount - rather than processing complete vibration information. This selective extraction reduces computational load while maintaining virtual image stability correction effectiveness.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial correction by moving the display position in the vertical direction only, rather than correcting all vibration components. This partial action approach reduces processing complexity while still addressing the primary source of virtual image instability caused by vehicle vibration.

Inventive Principle:

Principle #16Partial or excessive action

2Stability of the object's composition

If a correction to move the display position of the virtual image is performed every time the vehicle experiences vibration, then the virtual image stability is improved, but the device size increases

Engineering Contradiction:

Improvevirtual image stabilityVSAvoiddevice size

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent extracts only the essential correction information from vibration data - specifically the vertical component of displacement amount - rather than processing complete vibration information. This selective extraction reduces computational load while maintaining virtual image stability correction effectiveness.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial correction by moving the display position in the vertical direction only, rather than correcting all vibration components. This partial action approach reduces processing complexity while still addressing the primary source of virtual image instability caused by vehicle vibration.

Inventive Principle:

Principle #16Partial or excessive action

3Stability of the object's composition

If a correction to move the display position of the virtual image is performed every time the vehicle experiences vibration, then the virtual image stability is improved, but overheating issues occur

Engineering Contradiction:

Improvevirtual image stabilityVSAvoiddevice temperature

Core Design Contradiction:

Stability of the object's compositionVSTemperature

Solution Approach 1:

The patent extracts only the essential correction information from vibration data - specifically the vertical component of displacement amount - rather than processing complete vibration information. This selective extraction reduces computational load while maintaining virtual image stability correction effectiveness.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial correction by moving the display position in the vertical direction only, rather than correcting all vibration components. This partial action approach reduces processing complexity while still addressing the primary source of virtual image instability caused by vehicle vibration.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11798140B2Head-up display, video correction method, and video correction program

Publication Date: 2023.10.24 LAPIS TECH CO LTD

AI summary

A head-up display installed in a movable body includes an image acquisition unit that acquires an image including a graphic, a vibration information acquisition unit that acquires vibration information indicating vibration of the moving body, an image correction unit that generates a corrected image by performing, on the image, a blurring correction for blurring a contour of the graphic in the image based on the vibration information, and a display unit that displays the corrected image in a space as a virtual image.