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

Azimuths and Bearings01:19

Azimuths and Bearings

192
Azimuths and bearings are essential concepts in surveying, providing methods to express the direction of a line relative to a meridian. Azimuths refer to the clockwise angle measured from the north end of a reference meridian to the given line, ranging from zero to 360 degrees. This method gives a comprehensive directional reference within a full 360-degree circle, making it a straightforward way to communicate direction in various fields, including navigation, cartography, and...
192
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

153
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
153

You might also read

Related Articles

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

Sort by
Same author

Recent Advances in the Synthesis of 1,4-Enynes and Their Applications in Organic Synthesis.

Chemical record (New York, N.Y.)·2026
Same author

Single cell spatial transcriptomics track the evolutionary hierarchy and microenvironment remodeling during breast carcinoma invasion.

Nature communications·2026
Same author

Repeatability of SpotChecks contrast sensitivity test in macular disease.

Optometry and vision science : official publication of the American Academy of Optometry·2026
Same author

Development and Assessment of Rutin/Betamethasone-Loaded PAN-PVP Nanofibers for Wound Healing Applications.

Current drug delivery·2026
Same author

High-Spin Pt Sites of Intermetallic Compound via Pinning Effect Boost Oxygen Reduction Performance.

Angewandte Chemie (International ed. in English)·2026
Same author

Atomically Engineered RuO<sub>x</sub>-Cu Interfaces Enabling Tandem Catalysis for Ampere-Level Nitrite-Ethanol Co-Electrolysis.

Angewandte Chemie (International ed. in English)·2026

Related Experiment Video

Updated: Aug 9, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.1K

Single LED visible light positioning system based on image sensor and calculated azimuth angle.

Tongyao Wang, Zuojun Lin, Han Cheng

    Applied Optics
    |February 23, 2023
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a visible light positioning (VLP) system using a smartphone camera and a single LED lamp. The novel method achieves high accuracy for 3D positioning without needing a magnetometer.

    More Related Videos

    Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis
    07:16

    Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

    Published on: September 27, 2019

    6.3K
    Bringing the Visible Universe into Focus with Robo-AO
    10:35

    Bringing the Visible Universe into Focus with Robo-AO

    Published on: February 12, 2013

    19.5K

    Related Experiment Videos

    Last Updated: Aug 9, 2025

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
    05:57

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

    Published on: April 1, 2020

    8.1K
    Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis
    07:16

    Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

    Published on: September 27, 2019

    6.3K
    Bringing the Visible Universe into Focus with Robo-AO
    10:35

    Bringing the Visible Universe into Focus with Robo-AO

    Published on: February 12, 2013

    19.5K

    Area of Science:

    • Optical engineering
    • Indoor positioning systems
    • Computer vision

    Background:

    • Visible Light Positioning (VLP) systems offer a promising alternative for indoor localization.
    • Existing VLP systems often rely on magnetometers for accurate azimuth estimation, which can be susceptible to interference.
    • Smartphone cameras are ubiquitous, making camera-based VLP systems highly accessible.

    Purpose of the Study:

    • To propose and demonstrate a novel single-lamp Visible Light Positioning (VLP) system utilizing a standard smartphone camera.
    • To enhance azimuth angle accuracy by employing a marked lamp bead, eliminating the need for a magnetometer.
    • To introduce an improved VLP positioning algorithm based on image plane chords.

    Main Methods:

    • A VLP system was designed using a circular light-emitting diode (LED) for data transmission and a smartphone camera for image acquisition.
    • A new scheme for azimuth angle calculation was developed using a marked lamp bead on the LED.
    • A novel positioning method was implemented using image plane chords passing through midpoints of parallel chords.

    Main Results:

    • The proposed system successfully demonstrated VLP using a single LED and a smartphone camera.
    • The azimuth angle calculation method, without a magnetometer, improved positioning accuracy.
    • In an experimental area of 1.8m x 3.6m, 3D positioning errors were as low as 7.2 cm at a height of 1.2m.

    Conclusions:

    • The developed single-lamp VLP system provides accurate 3D positioning using readily available hardware.
    • The novel azimuth calculation and image plane chord methods significantly enhance VLP performance.
    • This approach offers a practical and accurate solution for indoor localization applications.