Floating Image Display Correction for Ambient Light Glare
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Solution Overview
Problem
The image quality of floating images displayed by existing devices deteriorates due to ambient light conditions, affecting observer visibility.
Innovation Solution
A floating image display device and method that includes an image display unit, an image formation optical system, viewpoint and ambient light information acquisition units, and a display processing unit to estimate and correct image quality deterioration regions based on observer position and ambient light information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If floating image display is implemented using existing technology, then image display capability is achieved, but image quality deteriorates under ambient light conditions
Solution Approach 1:
The patent applies preliminary action by estimating the image quality deterioration region before displaying the floating image. The system calculates where ambient light will cause deterioration based on observer position and ambient light direction, then pre-corrects the image data in those regions before rendering, preventing quality degradation rather than attempting to fix it afterward.
Solution Approach 2:
The patent implements local quality by applying different correction strategies to different regions of the image. Instead of uniformly processing the entire image, the system identifies specific deterioration regions caused by ambient light and applies targeted corrections only to those areas, preserving image quality where it is not affected while mitigating deterioration where it occurs.
2Reliability
If image quality correction is applied to compensate for ambient light, then visibility is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the image into distinct regions based on their susceptibility to ambient light deterioration. The system segments the image into deterioration regions and non-deterioration regions, then processes each segment differently. This allows complex correction algorithms to be applied only where necessary, reducing overall computational burden while maintaining visibility.
Solution Approach 2:
The patent replaces complex physical optical correction mechanisms with computational image processing. Instead of using additional optical elements or mechanical adjustments to compensate for ambient light, the system uses software-based correction algorithms that analyze and adjust image data, achieving visibility improvement through information processing rather than physical modification.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device and method enable the display of floating images adapted to both observer position and ambient light conditions, enhancing visibility by correcting image quality deterioration.
Implementation Method 1
an image formation optical system to make the image form an image as a floating image
Implementation Method 2
when ambient light is incident upon the floating image display device of the Patent Reference 1, stray light occurs and the image quality of the floating image adapted to the position of the eyes of the observer deteriorates
Data Source
AI summary
A floating image display device includes an image display unit to display an image based on image data, an image formation optical system to make the image form an image as a floating image, a viewpoint information acquisition unit to acquire viewpoint information indicating a position of eyes of an observer, an ambient light information acquisition unit to acquire ambient light information indicating information on ambient light heading for the image formation optical system, an image quality deterioration region estimation unit to estimate an image quality deterioration region on the image display unit corresponding to an ambient light passage region, as a region where light included in the ambient light, reflected by the image formation optical system and heading for the position of the eyes passes through the floating image, based on the viewpoint information and the ambient light information, and a display processing unit.