Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

X-ray Crystallography02:18

X-ray Crystallography

The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Determination of Crystal Structures01:29

Determination of Crystal Structures

In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

In situ ptychographic x-ray nanotomography of temperature-controlled crystallization processes.

Nature communications·2026
Same author

In situ ptychographic nanotomography captures activation, mobility, and deactivation of supported catalysts.

Nature communications·2026
Same author

Quantifying Trace Metals in Gunflint Microfossils by 3D Correlative X-ray Nanoimaging.

Analytical chemistry·2026
Same author

In Situ Characterization Reveals an Impaired Fibril Response to Loading Following Unloading during Early Achilles Tendon Healing.

ACS biomaterials science & engineering·2026
Same author

Screening for Alzheimer's disease in the community using an AI-driven screening platform: design of the PREDICTOM study.

The journal of prevention of Alzheimer's disease·2026
Same author

Impact of Microporous Layer Composition on the Water Content in the Membrane Electrode Assembly of Polymer Electrolyte Fuel Cells.

ACS applied materials & interfaces·2026
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

Related Experiment Video

Updated: May 10, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

Translation position determination in ptychographic coherent diffraction imaging.

Fucai Zhang1, Isaac Peterson, Joan Vila-Comamala

  • 1London Centre for Nanotechnology, UCL, London, UK. fucai.zhang@ucl.ac.uk

Optics Express
|June 6, 2013
PubMed
Summary
This summary is machine-generated.

Accurate ptychography imaging requires precise sample positioning. This study introduces a method to correct position errors during reconstruction, achieving sub-pixel accuracy and improving image quality for optical and X-ray applications.

More Related Videos

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
06:25

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy (iPALM)
11:57

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy (iPALM)

Published on: December 1, 2016

Related Experiment Videos

Last Updated: May 10, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
06:25

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy (iPALM)
11:57

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy (iPALM)

Published on: December 1, 2016

Area of Science:

  • Coherent diffractive imaging
  • Computational microscopy
  • Image reconstruction algorithms

Background:

  • Ptychography is a powerful lensless imaging technique that reconstructs an object's image from a series of diffraction patterns.
  • Accurate knowledge of the relative translation positions between these diffraction patterns is critical for achieving high-resolution, artifact-free images.
  • Existing methods often require precise experimental control or post-acquisition alignment, which can be challenging.

Purpose of the Study:

  • To develop and validate a novel method for retrieving and correcting translation position errors within the iterative image reconstruction process of ptychography.
  • To demonstrate the effectiveness of the proposed method in improving image quality and achieving diffraction-limited resolution.
  • To assess the method's performance across different wavelengths, including optical and X-ray.

Main Methods:

  • An iterative algorithm is proposed that simultaneously refines the object image and the translation parameters during reconstruction.
  • The method integrates position error correction directly into the standard ptychographic reconstruction loop.
  • Simulations and experimental data were used to evaluate the performance and accuracy of the developed method.

Main Results:

  • The proposed method successfully retrieves and corrects translation position errors, even for sub-pixel displacements.
  • Sub-pixel position accuracy was achieved within a manageable number of reconstruction iterations (several tens).
  • Both simulated and experimental results at optical and X-ray wavelengths demonstrated significant improvements in image quality and resolution.

Conclusions:

  • The developed iterative approach effectively corrects positioning errors in ptychography, enhancing image quality and resolution.
  • The method relaxes the stringent requirements for precise sample positioning during data acquisition.
  • This technique offers a robust solution for improving ptychographic reconstructions in various applications.