Deconvolution Function for Vision Defect Image Correction
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Solution Overview
Problem
Conventional eyewear solutions for vision defects are limited by their need for constant wear, discomfort, and inability to adapt to changing vision or varying distances, and they do not address the inherent distortions caused by defects like nearsightedness, farsightedness, and astigmatism effectively.
Innovation Solution
Applying a deconvolution function to electronically displayed, printed, or projected images based on a user's point spread function, which corrects for vision defects by pre-blurring images before display, allowing for clearer image perception without the need for physical eyewear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If eyewear is used to correct vision defects, then image clarity is improved, but device complexity and discomfort increase
Solution Approach 1:
The patent replaces the mechanical optical correction system (eyeglasses/contacts) with a digital image processing system. The deconvolution function digitally corrects vision defects by reversing the blurring effect caused by the user's point spread function, eliminating the need for physical corrective devices.
Solution Approach 2:
The patent creates a digital model (copy) of the user's vision defects through the point spread function, then applies a corresponding deconvolution function to correct images. This digital copying approach allows for precise correction without physical intervention.
2Reliability
If eyewear is worn continuously to maintain correction, then vision correction is maintained, but ease of operation deteriorates
Solution Approach 1:
The system automatically applies the deconvolution function to images based on the user's point spread function without requiring the user to take any action. The correction is applied programmatically, eliminating the need for the user to remember or wear corrective devices.
Solution Approach 2:
The deconvolution function is pre-calculated based on the user's point spread function and applied in advance to images before display. This preliminary correction ensures that all images the user views are automatically corrected without requiring real-time adjustment or user intervention.
3Measurement precision
If fixed correction eyewear is used, then specific vision defects are corrected, but adaptability deteriorates
Solution Approach 1:
The system dynamically adapts to different viewing conditions by adjusting the deconvolution parameters based on the user's point spread function and specific viewing scenario. The correction can be customized for different distances, lighting conditions, and image types, providing versatile adaptation without requiring multiple physical eyewear solutions.
Data Source
AI summary
In one embodiment, a method includes a computing device accessing a deconvolution function for a point spread function describing at least part of a user's eyesight. The computing device applies the deconvolution function to an image to be displayed on a display to the user. The computing device then displays on the display the image as deconvolved.