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

Trial and Error and Algorithm

Trial and Error and Algorithm

A problem-solving strategy is a plan of action used to find a solution. Different strategies have distinct action plans. Trial and error involves trying different solutions until one works. For instance, to fix a broken printer, you might check ink levels, ensure the paper tray isn't jammed, and verify the printer's connection to your laptop. This method can be time-consuming but is commonly used. Thomas Edison, for example, used trial and error to find a suitable filament for the light...

COPD: Pathogenesis and Clinical Features

COPD: Pathogenesis and Clinical Features

Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...

Special Features of Adaptive Immunity

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...

Microtubule Associated Proteins (MAPs)

Microtubule Associated Proteins (MAPs)

Microtubule function and architecture are regulated by an array of specialized proteins called microtubule-associated proteins or MAPs. These proteins are widespread across different organisms and have conserved protein motifs, like the multi-TOG domain for tubulin binding found in the CLASP family of MAPs. Some MAPs are lineage-specific based on their conserved domains. Their functions depend upon the cytoskeletal architecture and cell type they are located within. In-plant cells, a specific...

Esophageal Strictures-II: Clinical Features and Management

Esophageal Strictures-II: Clinical Features and Management

Patients with esophageal strictures often experience a range of symptoms. Initially, they may have difficulty swallowing solid foods, which can progress to include liquids. Additional symptoms may involve chest pain or discomfort, regurgitating food and fluids, heartburn, unintentional weight loss, coughing or choking during meals, and hoarseness.
Healthcare providers should gather a comprehensive medical history and conduct a physical examination for diagnosis. If esophageal stricture is...

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...

You might also read

Related Articles

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

Sort by

Same author

Ferrostatin-1 inhibits ferroptosis and alleviates organophosphate nerve agent-induced cognitive deficits by regulating ACSL4/GPX4 and NCOA4/FTH1 pathways in the hippocampus of guinea pigs.

Ecotoxicology and environmental safety·2026

Same author

Systematic dysregulation of immune-related alternative polyadenylation in systemic lupus erythematosus contributes to patient stratification.

Journal of translational autoimmunity·2026

Same author

A first-in-class pulsatile FXR agonist for bile-acid-related liver diseases.

Nature·2026

Same author

iStent combined with phacoemulsification versus phacoemulsification alone in open-angle glaucoma: a meta-analysis by medication washout status.

BMC ophthalmology·2026

Same author

An Antibiotic-Free Cryptic Plasmid Platform for Modular Pathway Coupling in Probiotic Escherichia Coli Nissle 1917.

Biotechnology and bioengineering·2026

Same author

Problematic smartphone use in early adolescence: Developmental heterogeneity and bidirectional links with risk factors.

British journal of psychology (London, England : 1953)·2026

Same journal

Correction: Kang et al. Fluid Flow to Electricity: Capturing Flow-Induced Vibrations with Micro-Electromechanical-System-Based Piezoelectric Energy Harvester. <i>Micromachines</i> 2024, <i>15</i>, 581.

Micromachines·2026

Same journal

Femtosecond Laser Texturing of Wood Coatings with Bio-Based Epoxy and Wax Additives for Enhanced Hydrophobicity.

Micromachines·2026

Same journal

Engineering of Optoelectronic Devices for Renewable Energy Applications.

Micromachines·2026

Same journal

Phase Transformation and Electrochemical Behavior of Hexagonal TiO<sub>2</sub> Nanotubes Under Different Annealing Temperatures and Heating Rates.

Micromachines·2026

Same journal

Process Optimization and Predictive Modeling of Femtosecond Laser Precision Milling for Commercial PMMA Slices.

Micromachines·2026

Same journal

A Hybrid Preprocessing Multi-Objective Surrogate Model for Thermal MEMS Actuators.

Micromachines·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Feb 2, 2026

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

Research on PF-SLAM Indoor Pedestrian Localization Algorithm Based on Feature Point Map.

Jingjing Shi^1,2,3, Mingrong Ren^4,5,6, Pu Wang^7,8,9

¹College of Automation, Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China. shijingjing123@emails.bjut.edu.cn.

|November 15, 2018

Summary

This summary is machine-generated.

This study introduces a novel indoor pedestrian positioning algorithm using particle filter-SLAM and inertial measurement units. It improves accuracy by creating feature point maps and correcting heading errors without prior map knowledge.

Keywords:

feature point matching indoor localization inertial navigation system (INS)particle filtering simultaneous localization and map building (SLAM) algorithm

More Related Videos

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures

Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures

Published on: February 15, 2022

Related Experiment Videos

Last Updated: Feb 2, 2026

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Trajectory Data Analyses for Pedestrian Space-time Activity Study

Published on: February 25, 2013

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures

Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures

Published on: February 15, 2022

Area of Science:

Indoor positioning
Pedestrian navigation
Simultaneous Localization and Mapping (SLAM)

Background:

Existing indoor positioning methods often rely on pre-existing electronic maps.
Micro-electromechanical systems (MEMS) inertial devices are popular for indoor pedestrian positioning but face challenges with map dependency and accuracy.

Purpose of the Study:

To develop an indoor pedestrian location algorithm that does not require prior map knowledge.
To enhance indoor pedestrian positioning accuracy using a feature point map and SLAM.
To improve heading angle estimation and correct position errors in pedestrian dead reckoning.

Main Methods:

Proposed a particle filter-SLAM (PF-SLAM) algorithm for indoor pedestrian localization based on a feature point map.
Implemented a turn-straight-state threshold detection method to correct heading angle errors.
Developed a feature point matching algorithm to correct divergent particle positions at corners.
Integrated SLAM with an inertial navigation system (INS) for real-time map updates and positioning.

Main Results:

Achieved accurate indoor pedestrian positioning without relying on existing maps.
Successfully suppressed heading angle error accumulation through improved detection methods.
Corrected pedestrian position errors effectively, especially at corners.
Enabled long-time, high-precision, and low-cost indoor positioning.

Conclusions:

The proposed PF-SLAM algorithm offers a robust solution for indoor pedestrian positioning independent of prior map information.
The integration of map building and localization enhances positioning accuracy and reliability.
The method provides a practical approach for cost-effective and precise indoor navigation systems.