Time resolution ptychography

An overlapping correlation and time-resolution technology, which is applied in the direction of material analysis using radiation, can solve the problems of information reconstruction of non-dynamic target objects, and achieve the effects of increasing time resolution, improving resolution, and high time resolution

Active Publication Date: 2014-11-05
NANJING UNIV
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But usually, including overlap correlation imaging (Ptychography) and many other imaging techniques, they can only reconstruct the information of static target objects, and cannot reconstruct the information of dynamic target objects.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Time resolution ptychography
  • Time resolution ptychography
  • Time resolution ptychography

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Realization of Overlay Correlation Imaging in 3D Mode

[0089] Step 1: Obtain a group of 25 images {Image 1 , Image 2 ...Image 25}, and determine the corresponding acquisition time point 14, and record its interval as t 0 .

[0090] Such as figure 1 , simplifies image overlay correlation imaging into a one-layer method, which is a two-dimensional overlay correlation imaging image acquisition method, and a method of acquiring a group of images. Specifically, in the case of radiation propagation path 1 accompanied by defocus 5 , passing through the target sample front surface 3 and the target sample rear surface 4 , passing through the target object 6 , recording the intensity information of the radiation source on the detection plane 7 , that is, an image, and acquiring such a group of images through radiation translation 2 .

[0091] When reconstructing a three-dimensional target object, the present invention adopts a layered approach to divide the three-dimensiona...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a time resolution ptychography and provides a method for providing image data. According to the method, a collected associated diffraction image is utilized to reconstruct relevant information of a region of a target object. The method comprises the following steps: obtaining a target image until enough associated images are collected; utilizing an enhanced ptychography iteration engine (ePIE) to obtain the reconstruction of the target object relative to time average; by taking the target object for reconstructing all time sequences and a probe function as targets, changing initial input; and utilizing the ePIE to finally obtain a result. Compared with the problem that the ptychography and other imaging technologies only can reconstruct the information of the static target object in the prior art, the time resolution ptychography can obtain the reconstruction of time resolution of the target object.

Description

technical field [0001] The present invention relates to the field of overlay-correlation imaging, and more particularly to a method of reconstructing a target object from a set of correlated images to reconstruct the evolution of the resulting target over time. Background technique [0002] There are many imaging techniques used to obtain the spatial information of the target object. Traditional scanning transmission imaging takes a lot of time to complete the image and can only measure the total scattering intensity at the detector, not the phase information. Overlap correlation imaging is used (Ptychography) can complete the acquisition of images in a very short time, has less influence on system instability, and can restore some information of the target object in an iterative manner. Overlap correlation imaging (Ptychography), the achievable resolution is many times the theoretical wavelength limit, and can avoid the aberration and instability introduced by the usual len...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
Inventor 王鹏高斯
Owner NANJING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap