AR Image Compensation for Waveguide Attenuation Mismatch
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Solution Overview
Problem
Inconsistent attenuation of light waves in different waveguide plates within AR glasses affects the imaging effect due to varying degrees of diffraction, leading to poor display quality.
Innovation Solution
An image processing method that compares grayscale values of input and output images to determine compensation parameters, adjusting the grayscale or brightness of the input image to compensate for optical signal attenuation caused by diffraction in waveguide plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light wave diffraction is used in multiple waveguide plates for image projection, then AR imaging function is achieved, but inconsistent attenuation degrees in different waveguide plates degrade display quality
Solution Approach 1:
The patent captures a reference image through the AR glasses before normal operation, uses it to determine attenuation characteristics of each waveguide plate, and pre-calculates compensation parameters. This preliminary action enables the system to compensate for attenuation differences in subsequent imaging operations, resolving the contradiction between achieving AR imaging function and maintaining display quality.
Solution Approach 2:
The patent changes the grayscale values of pixels in the image to be projected based on calculated compensation parameters. By adjusting these parameters according to the attenuation characteristics of each waveguide plate, the system compensates for inconsistent attenuation and maintains uniform display quality across all waveguide plates while preserving the AR imaging function.
2Manufacturing precision
If grayscale values are adjusted to compensate for attenuation, then imaging effect is improved, but additional processing complexity is introduced
Solution Approach 1:
The AR glasses system performs self-calibration by automatically capturing a reference image, calculating attenuation characteristics of its own waveguide plates, and determining compensation parameters without external intervention. This self-service approach improves imaging effect while minimizing additional processing complexity, as the system uses its existing imaging resources for calibration.
Solution Approach 2:
The patent implements a feedback mechanism where the captured reference image is used to determine attenuation characteristics, which then feed into the calculation of compensation parameters that adjust grayscale values. This closed-loop feedback process systematically improves imaging effect while keeping processing complexity manageable through algorithmic automation.
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
Improves the imaging effect of AR glasses by eliminating optical signal attenuation, resulting in enhanced display quality.
Implementation Method 1
A light wave emitted from the optical transmitter needs to be diffracted in a plurality of waveguide plates to achieve image projection
Implementation Method 2
diffraction of a light wave in different waveguide plates produces different degrees of attenuation
Data Source
AI summary
An image processing method, an electronic device and a non-transitory computer-readable storage medium are provided. The image processing method includes: obtaining a first grayscale value corresponding to each pixel in a first image and a second grayscale value corresponding to each pixel in a second image; and determining a compensation parameter according to the first grayscale value and the second grayscale value corresponding to each pixel. The compensation parameter is used for compensating for an image generated by augmented reality glasses. The first image is an image generated by the augmented reality glasses. The second image is an output image of the augmented reality glasses.