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

Local Attraction01:22

Local Attraction

333
Local attraction refers to disturbances in compass readings caused by magnetic influences from nearby objects such as metal fences, buried pipes, vehicles, buildings, power lines, or natural iron ore deposits. Small items like wristwatches, steel tools, or belt buckles can also interfere with the compass by creating local magnetic fields that distort the Earth's natural magnetic field. These distortions lead to inaccurate readings, posing navigation and land surveying challenges.Local...
333

You might also read

Related Articles

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

Sort by
Same author

Environment-Driven Synthetic Baseline Analysis and Optimization in Joint Measurement OPM-MEG Arrays.

Bioengineering (Basel, Switzerland)·2026
Same author

Decoding Motor States from Phase-Amplitude Coupling Measured by OPM-MEG.

Biosensors·2026
Same author

Discovery of Jatrophane Diterpenoids as JAG1-Notch Signaling Inhibitors for the Treatment of Liver Fibrosis.

Journal of medicinal chemistry·2026
Same author

Combined torso and foot heat exposure reduces acute <i>ad libitum</i> energy intake in young adults.

Temperature (Austin, Tex.)·2026
Same author

Excess of post-resistance exercise energy expenditure: a comparison between morning and evening.

European journal of applied physiology·2026
Same author

Multimodal Phase-Space Dynamics Fusion for Robust Ischemia Screening: An Edge-AI Paradigm with SERF Magnetocardiography.

Biosensors·2026
Same journal

Correction: Komatsu et al. Three-Dimensional Visualization and Detection of the Pulmonary Venous-Left Atrium Connection Using Artificial Intelligence in Fetal Cardiac Ultrasound Screening. <i>Bioengineering</i> 2026, <i>13</i>, 100.

Bioengineering (Basel, Switzerland)·2026
Same journal

Comparison of CO<sub>2</sub> Laser and Microdebrider in the Surgical Treatment of Pediatric Recurrent Respiratory Papillomatosis: A Retrospective Analysis.

Bioengineering (Basel, Switzerland)·2026
Same journal

Toward More Translational Tumor Models: Breast dECM-Based 3D Systems Capture Native Microenvironmental Cues.

Bioengineering (Basel, Switzerland)·2026
Same journal

Postural Stability Changes During the 4 Phases of the Half Squat: Kinematics Profile of the Center of Pressure and Center of Mass in High-Performance Weightlifters-A Pilot Study.

Bioengineering (Basel, Switzerland)·2026
Same journal

Definite Implant Position as Novel Readout for Effectiveness of Ridge Preservation Indicates to Beneficial Effect of Combined Treatment with Platelet-Rich Fibrin (PRF) and Xenogenic Biomaterial in Bone Regeneration.

Bioengineering (Basel, Switzerland)·2026
Same journal

Trueness and Precision of Intraoral Scanners for 3D-Printed Orthodontic Models with Attachments: An In Vitro Comparative Study.

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

Related Experiment Video

Updated: Jan 10, 2026

Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT
08:57

Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT

Published on: March 3, 2023

2.4K

A Sensor Localization and Orientation Method for OPM-MEG Based on Rigid Coil Structures and Magnetic Dipole Fitting

Weinan Xu1, Wenli Wang1, Fuzhi Cao1

  • 1School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.

Bioengineering (Basel, Switzerland)
|November 27, 2025
PubMed
Summary
This summary is machine-generated.

Accurate sensor positioning is vital for high-resolution Optically Pumped Magnetometer-Magnetoencephalography (OPM-MEG) imaging. A new method using rigid coil structures and advanced objective functions significantly improves sensor localization accuracy and robustness for OPM-MEG systems.

Keywords:
OPM-MEGmagnetic dipole fittingrigid coil structure (RCS)sensor co-registrationstructural similarity index (SSIM)weighted Frobenius norm

More Related Videos

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.3K
Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics
07:42

Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics

Published on: February 19, 2017

9.1K

Related Experiment Videos

Last Updated: Jan 10, 2026

Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT
08:57

Measuring the Influence of Magnetic Vestibular Stimulation on Nystagmus, Self-Motion Perception, and Cognitive Performance in a 7T MRT

Published on: March 3, 2023

2.4K
Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

7.3K
Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics
07:42

Magnetic Levitation Coupled with Portable Imaging and Analysis for Disease Diagnostics

Published on: February 19, 2017

9.1K

Area of Science:

  • Biomedical Engineering
  • Neuroscience Instrumentation
  • Medical Imaging Physics

Background:

  • High-precision sensor co-registration is essential for high-resolution Optically Pumped Magnetometer-Magnetoencephalography (OPM-MEG) imaging.
  • Conventional magnetic dipole fitting methods have limitations in accuracy due to geometric factors and approximation errors, especially in near-field conditions.

Purpose of the Study:

  • To develop and validate a novel sensor localization and orientation method for OPM-MEG systems.
  • To improve the accuracy and robustness of sensor co-registration in OPM-MEG.

Main Methods:

  • A method combining magnetic dipole-equivalent modeling with a rigid coil structure (RCS) for stable geometric constraints.
  • Formulation of three objective functions: standard Frobenius norm, weighted Frobenius norm, and structural similarity index (SSIM).
  • Simulation-based evaluation under ideal conditions and assembly perturbations.

Main Results:

  • The weighted Frobenius norm and SSIM methods achieved position errors below 1 mm and orientation errors below 1°.
  • These methods demonstrated superior performance by suppressing outlier deviations compared to the standard Frobenius norm.
  • The proposed method showed high accuracy and robustness even with assembly perturbations.

Conclusions:

  • The developed method effectively addresses the limitations of conventional approaches for OPM-MEG sensor co-registration.
  • It provides a geometry-constrained, optimization-based framework for practical, high-precision, multi-channel OPM-MEG system implementation.
  • The findings clarify factors influencing magnetic dipole approximation errors and offer a pathway for improved OPM-MEG technology.