Naked-eye 3D Display Raster Error Correction via Stripe Image Analysis
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Solution Overview
Problem
Naked-eye 3D displays experience image errors due to manufacturing and installation inaccuracies in the raster, leading to gaps between the raster and the screen, which affect the quality of the stereoscopic image displayed.
Innovation Solution
A method and apparatus that control a flat-panel display to display a stripe image, calculate the raster parameter based on a captured stripe image, and correct the stereoscopic image displayed by adjusting the image generation method using the calculated raster parameter, including image rectification and gap calculation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a raster is installed on a flat-panel display for naked-eye 3D display, then three-dimensional viewing capability is achieved, but manufacturing and installation errors cause gaps between the raster and screen, leading to image errors
Solution Approach 1:
The patent applies preliminary action by displaying a stripe image before the actual stereoscopic content to measure and calculate the raster parameter (gap distance) in advance. This pre-measurement allows the system to compensate for manufacturing and installation errors before they affect the final 3D image quality, thereby maintaining both 3D viewing capability and image accuracy.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting the stereoscopic image generation parameters based on the measured raster parameter. The system changes the image rendering parameters to compensate for the actual gap distance between the raster and screen, thereby correcting image errors while preserving the naked-eye 3D effect.
2Reliability
If the raster structure is fixed according to design specifications, then the naked-eye 3D display function is achieved, but actual parameters deviate from designed values causing stereoscopic image errors
Solution Approach 1:
The patent implements feedback by capturing the stripe image through an imaging device, calculating the actual raster parameter, and using this measured value to correct the stereoscopic image generation. This closed-loop feedback mechanism ensures that the display function remains reliable while simultaneously improving image accuracy by compensating for deviations from design specifications.
Solution Approach 2:
The system performs preliminary measurement of the raster parameter using a stripe image before displaying the actual stereoscopic content. This advance measurement allows the system to prepare correction parameters that ensure both functional reliability and measurement precision in the final 3D display.
3Measurement precision
If the gap between raster and screen is reduced to minimize image errors, then image quality improves, but manufacturing tolerances and installation difficulties increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the image generation parameters based on the actual measured gap distance. This allows the system to maintain good image quality across a range of gap distances, thereby relaxing the strict manufacturing tolerances and installation precision that would otherwise be required to minimize image errors.
Solution Approach 2:
The system performs self-service by automatically measuring the raster parameter and correcting the stereoscopic image without requiring manual adjustment of the raster position. This automated compensation mechanism maintains image quality while simplifying the manufacturing and installation processes, as the system adapts to the actual gap rather than requiring precise pre-positioning.
Data Source
AI summary
A method and apparatus for correcting an image error in a naked-eye three-dimensional (3D) display may include controlling a flat-panel display displaying a stripe image, calculating a raster parameter of the naked-eye 3D display based on a captured stripe image, and correcting a stereoscopic image displayed on the naked-eye 3D display based on the calculated raster parameter, wherein the naked-eye 3D display includes the flat-panel display and the raster.