Fourier-Space Aberration Correction for Incoherent 3D Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current microscopy techniques struggle with Fourier space aberrations, particularly in thick biological samples, leading to distorted imaging results and limiting high-resolution refractive index imaging.
Innovation Solution
A method and device for Fourier space aberration correction using incoherent light, which measures light intensities under multiple illumination patterns, extracts aberration information, and corrects the aberration using a gradient descent algorithm to generate a corrected tomogram.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional microscopy techniques are used for imaging thick biological samples, then the imaging process is simple, but Fourier space aberrations cause distorted imaging results and limit resolution
Solution Approach 1:
The patent applies preliminary action by measuring system aberrations through separate pre-imaging under specific experimental conditions before performing the actual high-resolution imaging. This pre-characterization of aberrations allows for correction to be applied subsequently, resolving the contradiction by preparing the correction data in advance without complicating the main imaging process
Solution Approach 2:
The patent introduces an intermediary correction algorithm that processes the measured aberration data and applies corrections to the imaging results. This intermediary computational step acts as a mediator between the raw distorted images and the final corrected high-resolution images, enabling resolution improvement without requiring complex hardware modifications
2Measurement precision
If aberration correction methods are applied to improve imaging accuracy, then imaging precision improves, but the process requires separate pre-imaging measurements under specific conditions
Solution Approach 1:
The patent applies universality by designing a pre-imaging measurement protocol that characterizes aberrations across multiple spatial frequencies and field positions simultaneously. This multi-functional measurement approach captures comprehensive aberration data in a single experimental setup, reducing the need for multiple separate measurements and minimizing time loss while maintaining high measurement precision
3Ease of manufacture
If traditional aberration correction techniques from fluorescence microscopy are applied, then correction algorithms are well-established, but direct application to QPI is not straightforward
Solution Approach 1:
The patent applies parameter changes by adapting the aberration correction algorithms from fluorescence microscopy to QPI through modifications in the mathematical models and processing parameters. Specifically, the correction algorithms are reparameterized to work with the phase-based imaging modality of QPI rather than intensity-based fluorescence imaging, enabling ease of implementation while achieving versatility across different microscopy techniques
Data Source
AI summary
Disclosed is a method and device for Fourier space aberration correction for three-dimensional (3D) high-resolution refractive index using incoherent light, which may measure each of light intensities transmitted from a specimen under at least two illumination patterns using an incoherent light source, may extract Fourier space aberration information from overlapping information of the measured light intensities, and may correct the Fourier space aberration information for an original tomogram acquired using the incoherent light source and generate the corrected tomogram.