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

You might also read

Related Articles

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

Sort by
Same author

Single-shot, depth-encoded multiplexed OCT for multi-spot tracking of induced transient corneal dynamics.

Biomedical optics express·2026
Same author

Reconstruction of the crystalline lens full-geometry from OCT images acquired with off-axis viewing.

Scientific reports·2026
Same author

Predictions of Through-Focus Performance of Presbyopia-Correcting Intraocular Lenses in Presbyopic Subjects Using a Visual Simulator.

Ophthalmology science·2026
Same author

Crystalline lens geometry from a clinical OCT-based biometer in pre-cataract surgery patients.

Research square·2026
Same author

Photobonding of silk fibroin-based hydrogels to rabbit corneas.

Frontiers in bioengineering and biotechnology·2026
Same author

Complete reconstruction of the crystalline lens shape from OCT images acquired with off-axis viewing.

Research square·2025

Related Experiment Video

Updated: Mar 31, 2026

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

10.8K

Phase unwrapping with a virtual Hartmann-Shack wavefront sensor.

Vyas Akondi, Claas Falldorf, Susana Marcos

    Optics Express
    |October 20, 2015
    PubMed
    Summary
    This summary is machine-generated.

    A new virtual Hartmann-Shack sensor method improves wavefront reconstruction accuracy in digital phase-shifting interferometers, offering more stable and precise results, especially in noisy conditions.

    More Related Videos

    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
    11:34

    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

    Published on: December 3, 2013

    16.2K
    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    11.2K

    Related Experiment Videos

    Last Updated: Mar 31, 2026

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    10.8K
    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
    11:34

    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

    Published on: December 3, 2013

    16.2K
    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    11.2K

    Area of Science:

    • Optical metrology
    • Wavefront sensing and control

    Background:

    • Digital phase-shifting point diffraction interferometers (PDI) offer tunable parameters but are sensitive to noise.
    • Accurate wavefront reconstruction is crucial for reliable optical measurements.

    Purpose of the Study:

    • To introduce a novel wavefront reconstruction method using a virtual Hartmann-Shack (HS) sensor.
    • To enhance the accuracy and stability of wavefront sensing in digital PS-PDI systems.

    Main Methods:

    • Implementation of a virtual HS wavefront sensor for digital PS-PDI.
    • Comparison of the virtual HS method with conventional Fourier unwrapping techniques.
    • Simulation studies to evaluate performance under varying noise levels.

    Main Results:

    • The virtual HS method demonstrated superior accuracy and stability compared to Fourier unwrapping, particularly in the presence of noise.
    • Phase maps reconstructed using the virtual HS method closely matched original wrapped phases.
    • Combining virtual HS and Fourier methods showed potential for improved accuracy at high signal-to-noise ratios.

    Conclusions:

    • The proposed virtual HS wavefront reconstruction method offers a robust and accurate alternative for digital PS-PDI.
    • This approach enhances wavefront sensing capabilities by mitigating noise effects.
    • Hybrid methods may further optimize accuracy in specific experimental conditions.