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

Legal Guidelines for Documentation

Legal Guidelines for Documentation

The legal guidelines for nursing documentation are essential for ensuring accurate, professional, and ethical recording of patient care. The guidelines are discussed here:

You might also read

Related Articles

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

Sort by

Same author

A Clinically Ultrasound Fusion Visual Prediction Model for Childhood Irreducible Small-Bowel Intussusception.

Indian journal of pediatrics·2026

Same author

Predicting early recurrence after hydrostatic reduction of pediatric intussusception: A nomogram and a simplified clinical score.

The American journal of emergency medicine·2026

Same author

Bioinformatics Analysis and Animal Experiments Revealed the Potential Role of IGFBP3 in Allergic Rhinitis.

International archives of allergy and immunology·2026

Same author

Risk factors for early recurrence after hydrostatic reduction of intussusception in children and development of a nomogram prediction model.

Pediatric surgery international·2026

Same author

Adaptations in Plasmodium tubulin determine distinct microtubule architectures, mechanics and drug susceptibility.

Nature communications·2026

Same author

Continuous Freshwater Collection in Arid Regions via Radiative Cooling and Solar-Driven Dual-Mode Atmospheric Water Harvesting.

Langmuir : the ACS journal of surfaces and colloids·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

Search research articles

Related Experiment Video

Updated: May 1, 2026

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

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

Published on: July 5, 2016

Text information security protection method based on computer-generated holograms.

Qiuyang Wang, Aiming Ge, Xindi Chen

|June 10, 2024

Summary

This summary is machine-generated.

This study introduces a novel point-sampling computer-generated hologram (CGH) method using ray tracing to embed text information. The technique effectively hides data within CGHs, ensuring high fidelity and imperceptibility.

More Related Videos

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Published on: January 14, 2020

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

Related Experiment Videos

Last Updated: May 1, 2026

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

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

Published on: July 5, 2016

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Published on: January 14, 2020

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

Area of Science:

Optics and Photonics
Computer Graphics
Information Security

Background:

Computer-generated holograms (CGHs) are increasingly complex due to faster ray tracing.
Growing applications of CGHs for information hiding lack comprehensive research.
Need for robust methods to embed and protect information within CGHs.

Purpose of the Study:

To propose and evaluate a point-sampling CGH method for secure information hiding.
To assess the effectiveness of embedding depth-encoded text information.
To analyze the information density and imperceptibility of the proposed method.

Main Methods:

Utilized ray tracing for rapid sampling of text information at various depths.
Employed discrete cosine transform (DCT) to embed depth-encoded text into a carrier image.
Evaluated image quality using Peak Signal-to-Noise Ratio (PSNR).

Main Results:

Achieved a PSNR of 29.56 dB between original and hidden images, indicating good data integrity.
Attained a PSNR of 51.66 dB between the original and embedded carrier images, ensuring visual imperceptibility.
Determined maximum information density for computational holograms at 200x200 resolution.

Conclusions:

The proposed point-sampling CGH method effectively hides information with high fidelity.
The method offers strong protection for generated CGHs, making embedded data difficult to detect.
Identified optimal resolution for maximum information density in computational holograms.