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

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

9.4K
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...
9.4K

You might also read

Related Articles

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

Sort by
Same author

Advances in Digital Holography, 3-D Imaging, and Optical Information Processing: introduction.

Biomedical optics express·2026
Same author

Optimized simultaneous generation of dual-wavelength phase and polarization singularities.

Scientific reports·2026
Same author

Application of transport of intensity and phase equations for quantitative phase imaging using a non-recursive method.

Applied optics·2026
Same author

Advances in digital holography, 3-D imaging, and optical information processing: introduction.

Applied optics·2026
Same author

Frequency-domain filtering for feature enhancement using recursive transport of intensity and phase equations.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026
Same author

Advances in digital holography, 3-D imaging, and optical information processing: introduction.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026

Related Experiment Video

Updated: May 3, 2026

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

7.8K

Fresnel domain nonlinear optical image encryption scheme based on Gerchberg-Saxton phase-retrieval algorithm.

Sudheesh K Rajput, Naveen K Nishchal

    Applied Optics
    |February 12, 2014
    PubMed
    Summary

    This study introduces a new nonlinear image encryption method using the Gerchberg-Saxton algorithm for enhanced security. The system uses asymmetric keys for secure optical decryption, proving robust against various attacks.

    More Related Videos

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    9.4K
    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

    9.5K

    Related Experiment Videos

    Last Updated: May 3, 2026

    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

    7.8K
    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    9.4K
    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

    9.5K

    Area of Science:

    • Optics and Photonics
    • Information Security
    • Computational Imaging

    Background:

    • Traditional image encryption methods often lack robustness against sophisticated attacks.
    • Phase retrieval algorithms offer potential for novel cryptographic applications.
    • Double Random Phase Encoding (DRPE) is a common architecture for optical encryption.

    Purpose of the Study:

    • To propose a novel nonlinear image encryption scheme.
    • To enhance security through asymmetric key generation.
    • To enable optical decryption using a conventional DRPE setup.

    Main Methods:

    • Utilizing the Gerchberg-Saxton (G-S) phase-retrieval algorithm in the Fresnel transform domain.
    • Applying the G-S algorithm twice to generate two asymmetric keys.
    • Implementing a decryption process compatible with conventional DRPE architecture.

    Main Results:

    • The proposed scheme demonstrates nonlinear encryption with enhanced security.
    • Asymmetric keys facilitate optical decryption via DRPE.
    • Cryptanalysis confirms robustness against known-plaintext, chosen-plaintext, and special attacks.
    • Computer simulations validate the proposed cryptosystem's effectiveness.

    Conclusions:

    • The G-S based nonlinear image encryption scheme offers superior security.
    • The asymmetric key strategy enhances cryptographic robustness.
    • The system is suitable for secure optical information processing.