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

Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

433
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
433
Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

393
Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any...
393
Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

697
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...
697

You might also read

Related Articles

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

Sort by
Same author

TRIM21-mediated ubiquitination of PARP1 regulated by the PI3K/AKT-STAT5A axis suppresses small cell lung cancer.

Nature communications·2026
Same author

Synergistic Defect and Phase Boundary Engineering for Large Strain and Superior Low-Field Energy Storage in Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-Based Relaxors.

Materials (Basel, Switzerland)·2026
Same author

A Nanoconfined, Hydrogel-Partitioned LAMP Platform for Rapid, Extraction-Free Quantification of <i>Mycoplasma pneumoniae</i>.

ACS infectious diseases·2026
Same author

Adaptive radius filtering and PointCleanNet-based denoising method for repairing TBM milling cutter rings.

Applied optics·2026
Same author

A U-shaped robotic gripper with displacement and deformation controlled by programmable magnetic fields.

Bioinspiration & biomimetics·2026
Same author

Analysis of Resilience in Nurses Exposed to Workplace Violence: A Cross-Sectional Study.

Journal of clinical nursing·2026
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Related Experiment Video

Updated: Jan 17, 2026

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

10.3K

Quantized phase-only hologram generation based on an iterative algorithm with time-multiplexing.

Huadong Zheng, Tengfei Zhang, Qiwei Fang

    Applied Optics
    |September 22, 2025
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel algorithm for generating 4-bit phase-only holograms, enabling faster dynamic holographic displays. The method improves reconstruction quality and efficiency for 3D visualization technologies.

    More Related Videos

    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

    10.7K
    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

    8.8K

    Related Experiment Videos

    Last Updated: Jan 17, 2026

    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

    10.3K
    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

    10.7K
    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

    8.8K

    Area of Science:

    • Optics and Photonics
    • Computer Vision and Image Processing
    • Digital Holography

    Background:

    • Dynamic holographic displays are limited by the trade-off between spatial light modulator refresh rates and holographic data volume.
    • Low-bit-depth holograms offer higher refresh rates, crucial for dynamic 3D visualization.
    • Existing methods struggle with the computational demands of high-resolution, dynamic holography.

    Purpose of the Study:

    • To develop an efficient algorithm for direct generation of 4-bit-depth phase-only holograms at 2K resolution.
    • To overcome the limitations of conventional 8-bit holograms and improve dynamic display capabilities.
    • To enhance reconstruction quality and reduce speckle noise in holographic displays.

    Main Methods:

    • A quantized stochastic gradient descent iterative algorithm was proposed.
    • Differentiable quantization constraints were implemented to compress 8-bit holograms to 4-bit depth.
    • A time-multiplexing technique was used to suppress quantization-induced speckle during reconstruction.

    Main Results:

    • The algorithm successfully generated 4-bit-depth phase-only holograms at 2K resolution.
    • Quantized holograms demonstrated superior reconstruction quality compared to traditional iterative algorithms in simulations and experiments.
    • The quantization strategy accelerated convergence and enabled direct hologram generation.

    Conclusions:

    • The proposed method offers an efficient solution for dynamic holographic displays and low-power holographic storage.
    • Direct generation of low-bit-depth holograms significantly enhances refresh rates for 3D visualization.
    • This approach addresses critical demands for data-intensive holographic applications.