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

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

19.6K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
19.6K

You might also read

Related Articles

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

Sort by
Same author

Sub-Second, Sensitive and Multispecies Detection of Volatile Organic Compounds Using a Mid-Infrared Broadband Supercontinuum Source and Upconversion Spectrometer.

Applied spectroscopy·2026
Same author

Real-Time Measurement of CH<sub>4</sub> in Human Breath Using a Compact CH<sub>4</sub>/CO<sub>2</sub> Sensor.

Sensors (Basel, Switzerland)·2024
Same author

Spatial monitoring of flying insects over a Swedish lake using a continuous-wave lidar system.

Royal Society open science·2023
Same author

Perspectives on interstitial photodynamic therapy for malignant tumors.

Journal of biomedical optics·2021
Same author

Gas Monitoring in Human Frontal Sinuses-Stability Considerations and Gas Exchange Studies.

Sensors (Basel, Switzerland)·2021
Same author

Identification of Flying Insects in the Spatial, Spectral, and Time Domains with Focus on Mosquito Imaging.

Sensors (Basel, Switzerland)·2021

Related Experiment Video

Updated: Dec 11, 2025

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

10.2K

Foreground Scattering Elimination by Inverse Lock-in-Like Spatial Modulation.

Yueyu Lin1,2,3, Sune Svanberg1,2,3

  • 1National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou 510006, China.

Vision (Basel, Switzerland)
|August 23, 2020
PubMed
Summary

This study introduces an "inverse lock-in-like spatial modulation" technique to improve vision hindered by obstructions. By modulating the obscuring background, static objects become clearer, enhancing visual perception in challenging conditions.

Keywords:
Gestalt psychologybackground subtractionlock-in techniquesmodulationscatteringvision

More Related Videos

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

13.3K
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

10.2K

Related Experiment Videos

Last Updated: Dec 11, 2025

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

10.2K
Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

13.3K
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

10.2K

Area of Science:

  • Vision science
  • Image processing
  • Optical engineering

Background:

  • Vision impairment due to obscuring or scattering structures (e.g., dirty windscreens, foliage) is a common challenge.
  • Existing techniques often focus on modulating the feature of interest, which is not always feasible.

Purpose of the Study:

  • To develop a novel method for enhancing vision impaired by close-range obscurations.
  • To introduce an "inverse lock-in-like spatial modulation" approach.
  • To apply advanced digital imaging techniques for object-background separation.

Main Methods:

  • Spatially modulating the obscuring background, either by moving the detector/eye or utilizing natural modulation (e.g., wind-blown branches).
  • Applying a digital imaging processing technique combining Interframe Difference and Gaussian Mixture models.
  • Drawing parallels with electronic lock-in techniques but modulating the background instead of the signal.

Main Results:

  • Successfully demonstrated a method to isolate static features of interest from a modulated, obscuring background.
  • Achieved enhanced vision in scenarios with visual clutter and scattering.
  • Validated the effectiveness of the combined digital imaging processing technique.

Conclusions:

  • The "inverse lock-in-like spatial modulation" offers a simple yet effective approach to overcome vision impairments caused by obstructions.
  • The digital image processing method provides robust separation of objects from complex backgrounds.
  • The findings have implications for fields ranging from automotive safety to biological imaging and connect to Gestalt psychology principles.