Stereoscopic Display Brightness Expansion Using Common Coefficient
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image display technologies for stereoscopic images often result in discomfort due to brightness discrepancies between right-eye and left-eye images, caused by inappropriate brightness amplification factors in light control methods.
Innovation Solution
An image display apparatus that calculates a common expanding coefficient based on characteristic values of both right-eye and left-eye image data, applying it uniformly to both images to enhance contrast without brightness discrepancies, thereby improving display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light control is performed by reducing illumination light amount and amplifying brightness of image signal to widen dynamic range, then the dynamic range is improved, but brightness discrepancy occurs between right-eye and left-eye images causing viewer discomfort
Solution Approach 1:
The patent changes the parameter application method by using a common expanding coefficient for both right-eye and left-eye images instead of separate coefficients. This ensures that brightness amplification is applied uniformly to both images, maintaining brightness consistency while still achieving dynamic range expansion through the controlled parameter change.
Solution Approach 2:
The patent applies a universal expanding coefficient to both right-eye and left-eye images, making the brightness amplification process consistent across different image channels. This universal application of the same parameter ensures that both images undergo identical brightness transformation, preventing brightness discrepancy while achieving the desired dynamic range expansion.
2Illumination intensity
If different brightness amplification factors are set for right-eye and left-eye images, then the dynamic range of each image is improved, but brightness discrepancy occurs between the two images
Solution Approach 1:
The patent modifies the parameter strategy by using a single expanding coefficient for both images instead of different coefficients. This parameter unification ensures that brightness amplification is applied equally to right-eye and left-eye images, maintaining viewer comfort while still achieving effective brightness amplification and dynamic range expansion.
Solution Approach 2:
The patent applies homogeneous treatment to both images by using the same expanding coefficient for brightness amplification. This homogeneous approach ensures that both right-eye and left-eye images undergo identical brightness transformation, eliminating brightness discrepancy and ensuring viewer comfort while achieving the desired brightness amplification effect.
3Illumination intensity
If brightness amplification is applied to expand dynamic range, then the contrast sense is improved, but brightness inconsistency between stereoscopic images occurs
Solution Approach 1:
The patent applies parameter change uniformly across both images by using a common expanding coefficient. This ensures that brightness expanding is performed consistently on both right-eye and left-eye images, improving contrast sense while maintaining brightness uniformity and preventing inconsistency between stereoscopic images.
Solution Approach 2:
The patent uses a universal expanding coefficient that applies to both right-eye and left-eye images, ensuring that the brightness expanding operation is performed identically on both images. This universal application maintains brightness uniformity across the stereoscopic pair while achieving the desired contrast improvement through brightness expansion.
Data Source
AI summary
A stereoscopic image display apparatus includes an image output unit that outputs right-eye image data and left-eye image data that form stereoscopic image data, a characteristic value calculating unit that calculates brightness-related image characteristic values of at least one of the right-eye image data and the left-eye image data, a expanding coefficient calculating unit that calculates a expanding coefficient common to the right-eye image data and the left-eye image data based on the image characteristic values, a brightness expanding unit that performs brightness expanding on both the right-eye image data and the left-eye image data by using the expanding coefficient, and an image display unit that displays an image based on the right-eye image data and the left-eye image data having undergone the brightness expanding.