Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Phase Contrast and Differential Interference Contrast Microscopy

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...

Reconstruction of Signal using Interpolation

Reconstruction of Signal using Interpolation

Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...

You might also read

Related Articles

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

Sort by

Same author

Analytical framework for guide-star arrangement optimization in solar ground-layer adaptive optics.

Optics letters·2026

Same author

From vineyard waste to smart sensors: Nitrogen-doped carbon quantum dot prepared from grape leaves and applications in high-sensitivity visual detection of gallic acid.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2025

Same author

Dispersed fringe cophasing method based on principal component analysis: erratum.

Optics letters·2025

Same author

Corrected field-of-view estimation for ground-based telescopes in multi-conjugate adaptive optics based on non-conjugate correction analysis of deformable mirrors.

Optics express·2025

Same author

Optimal gain integral control based on a fractional-order delayed observer in adaptive optics.

Optics express·2025

Same author

Average-stitching wavefront control method for solar dual-conjugate adaptive optics.

Optics express·2025

Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026

Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026

Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026

Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026

Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026

Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Apr 26, 2026

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

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

Published on: October 11, 2016

Speckle transfer function for partial correction adaptive optics image reconstruction.

Libo Zhong, Yu Tian, Changhui Rao

|August 1, 2014

Summary

This summary is machine-generated.

This study introduces a new method to accurately measure the speckle transfer function (STF) for adaptive optics (AO) images. This technique improves photometry by better reconstructing AO images, especially in low-order correction modes.

More Related Videos

Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy FSM

Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy FSM

Published on: August 5, 2009

Whole-cell Super-Resolution Imaging via DNA-PAINT on a Spinning Disk Confocal with Optical Photon Reassignment

Whole-cell Super-Resolution Imaging via DNA-PAINT on a Spinning Disk Confocal with Optical Photon Reassignment

Published on: January 6, 2026

Related Experiment Videos

Last Updated: Apr 26, 2026

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

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

Published on: October 11, 2016

Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy FSM

Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy FSM

Published on: August 5, 2009

Whole-cell Super-Resolution Imaging via DNA-PAINT on a Spinning Disk Confocal with Optical Photon Reassignment

Whole-cell Super-Resolution Imaging via DNA-PAINT on a Spinning Disk Confocal with Optical Photon Reassignment

Published on: January 6, 2026

Area of Science:

Astronomy
Optical Engineering
Image Processing

Background:

Adaptive optics (AO) systems reduce image aberrations but leave residual errors.
Accurate photometry requires precise knowledge of the speckle transfer function (STF) for speckle reconstruction.

Purpose of the Study:

To propose and validate a novel method for evaluating the STF in partially corrected AO images.
To enhance the accuracy of photometry in astronomical observations using AO.

Main Methods:

The STF is divided into low- and high-frequency components.
Two generalized Fried parameters are used to calculate STF values for partial wavefront compensation.
The method is tested under various seeing conditions and AO correction modes.

Main Results:

The proposed method yields STFs that closely match simulated AO STFs.
Results demonstrate improved accuracy compared to the traditional spectral ratio method.
The method shows higher reliability in low-order AO correction modes.

Conclusions:

The new STF evaluation method offers a more accurate approach for speckle image reconstruction with AO.
The technique is particularly effective when the pupil diameter significantly exceeds the generalized Fried parameters, common in low-order correction.