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

Polarization differential self-mixing interference of a Zeeman laser with second-order phase modulation for retardation determination.

Applied optics·2026
Same author

Complexity of crack front geometry enhances toughness of brittle solids.

Nature physics·2024
Same author

High quality of an absolute phase reconstruction for coherent digital holography with an enhanced anti-speckle deep neural unwrapping network.

Optics express·2022
Same author

Gasotransmitter Regulation of Phosphatase Activity in Live Cells Studied by Three-Channel Imaging Correlation.

Angewandte Chemie (International ed. in English)·2018
Same author

Flexible real-time natural 2D color and 3D shape measurement.

Optics express·2013
Same author

Natural method for three-dimensional range data compression.

Applied optics·2013
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Nov 29, 2025

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb
06:50

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Published on: December 2, 2017

9.5K

Enhanced Digital Gradient Sensing Using Backlight Digital Speckle Target.

Baofei Fu1, Chenzhuo Li2, Bo Dong1,2,3

  • 1School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China.

Sensors (Basel, Switzerland)
|November 20, 2020
PubMed
Summary
This summary is machine-generated.

This study enhances digital gradient sensing (DGS) performance by using a backlight illumination technique with an optimized speckle target. This improves light efficiency and measurement accuracy for transparent materials and specular structures.

Keywords:
angular deflectionbacklight illuminationdigital gradient sensingstress gradient

More Related Videos

Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
10:16

Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects

Published on: February 8, 2014

12.5K
Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging
07:13

Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging

Published on: December 22, 2023

1.8K

Related Experiment Videos

Last Updated: Nov 29, 2025

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb
06:50

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Published on: December 2, 2017

9.5K
Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects
10:16

Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects

Published on: February 8, 2014

12.5K
Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging
07:13

Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging

Published on: December 22, 2023

1.8K

Area of Science:

  • Optical Measurement Techniques
  • Materials Science
  • Mechanical Engineering

Background:

  • Digital gradient sensing (DGS) is a non-contact optical technique for assessing material mechanical behavior.
  • Current DGS systems suffer from limited dynamic performance due to poor light-gathering capabilities.
  • Enhancing light utilization and speckle quality is crucial for improving DGS dynamic performance.

Purpose of the Study:

  • To propose and validate a novel method for enhancing the dynamic performance of DGS.
  • To improve the light-gathering capability and measurement precision of DGS systems.
  • To demonstrate the efficacy of the proposed backlight digital speckle target for both transmission-mode (t-DGS) and reflection-mode (r-DGS).

Main Methods:

  • Implemented a backlight illumination technique to increase light utilization efficiency.
  • Developed an optimized digital speckle pattern to enhance measurement accuracy.
  • Conducted comparative experiments to quantify improvements in light efficiency and image quality.
  • Performed real-world tests using t-DGS and r-DGS under various mechanical loads.

Main Results:

  • The proposed backlight illumination method increased light utilization efficiency by approximately 80 times.
  • The optimized digital speckle pattern improved speckle image quality by about 40%.
  • Demonstrated significant enhancement in DGS dynamic performance and measurement accuracy.
  • Validated the method's effectiveness in both transmission and reflection modes.

Conclusions:

  • The proposed backlight digital speckle target method significantly enhances DGS dynamic performance.
  • This technique offers a simple yet effective solution for improving light efficiency and measurement accuracy.
  • The method is highly compatible and can be adopted as a standard technique for both t-DGS and r-DGS applications.