Optical Image Display Brightness Mapping for Contrast Recovery
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Solution Overview
Problem
Image quality is degraded due to the reduction of in-eye contrast when displayed through an optical imaging system, as inherent hardware parameters affect the brightness and contrast of images, leading to reduced overall image quality.
Innovation Solution
Determine an adaptive brightness mapping relationship based on pixel brightness to adjust the pixel brightness of images before display, ensuring the difference between the displayed and ideal brightness is minimized, thus maintaining optimal image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If images are displayed through an optical imaging system, then users can visually browse the image, but the in-eye contrast is reduced and image quality is degraded
Solution Approach 1:
The patent applies preliminary action by performing brightness transformation on the image data before it is displayed through the optical imaging system. The processing unit transforms the image data according to a brightness mapping relationship that compensates for the expected contrast reduction, so that when the image is subsequently displayed through the optical system, the perceived brightness and contrast are restored to ideal levels.
2Manufacturing precision
If brightness transformation is applied to compensate for contrast reduction, then image quality is improved, but the complexity of the display system increases
Solution Approach 1:
The patent replaces potential mechanical or optical compensation mechanisms with a computational approach. Instead of modifying the optical imaging system hardware to maintain contrast, the solution uses software-based brightness transformation through a processing unit that applies algorithms to the image data, thereby maintaining image quality without increasing physical system complexity.
Solution Approach 2:
The patent changes the brightness parameter of the image data through computational transformation. The processing unit modifies the brightness values of pixels according to a brightness mapping relationship, transforming the image parameters before display to compensate for the contrast reduction that will occur in the optical system.
3Manufacturing precision
If adaptive brightness mapping is used to minimize brightness difference, then image quality is improved, but the processing time and computational complexity increase
Solution Approach 1:
The patent performs the computationally intensive brightness mapping transformation in advance, before the image is displayed. By pre-processing the image data through the adaptive brightness mapping algorithm, the system prepares optimized image data that can be displayed directly without requiring real-time computation during the actual display process.
Data Source
AI summary
Embodiments of the present application provide an image display method, apparatus, device and storage medium. The method comprises: determining, according to a pixel brightness of a to-be-displayed image, a corresponding adaptive brightness mapping relationship that makes a difference between the pixel brightness of a non-low-brightness pixel area of the to-be-displayed image after being displayed through an optical imaging system and an ideal brightness of the non-low-brightness pixel area that is not displayed through the optical imaging system less than a preset brightness difference; and transforming the pixel brightness of the to-be-displayed image according to the adaptive brightness mapping relationship, and displaying the transformed to-be-displayed image through the optical imaging system.