| Vol-4047 urn:nbn:de:0074-4047-X Copyright © 2025 for the individual papers by the papers' authors. Copyright © 2025 for the volume as a collection by its editors. This volume and its papers are published under the Creative Commons License Attribution 4.0 International (CC BY 4.0).

# IPIN-WCAL 2025
Indoor Positioning and Indoor Navigation - Workshop for Computing & Advanced Localization 2025

### Proceedings of the Workshop for Computing & Advanced Localization at the Fifteenth International Conference on Indoor Positioning and Indoor Navigation, September 15-18, 2025, Tampere, Finland
co-located with 15th International Conference on Indoor Positioning and Indoor Navigation (IPIN 2025)

### Tampere, Finland, September 15 - 18, 2025.

Edited by

### Lucie Klus 1
Guohao Zhang 2

1 Tampere University, Faculty of Information Technology and Communication Sciences, Tampere, Finland
2 The Hong Kong Polytechnic University, Department of Aeronautical and Aviation Engineering, Hung Hom, Kowloon, Hong Kong SAR

## Table of Contents

- Preface
  Summary: There were 38 papers submitted for peer-review to this workshop. Out of these, 33 short papers were accepted for this volume.

### Session 1: Research papers

- Design of Signal Quality Test Module for Ground Verification System of Satellite Based Augmentation System (SBAS)
  Inone Joo, Cheon Sig Sin, Jae Hwan Bong, Seongkyun Jeong
- 3-D Location System Employing BLE and Frequency- Scanned Antennas
  Jose Antonio Lopez Pastor, Antonio David Hernandez Mateos, Alejandro Gil Martínez, Astrid Algaba Brazález, José Luis Gómez Tornero
- A Structured Survey of Client-Based and Client-Assisted Localization for Underground Environments
  Benny Platte, Marc Ritter, Christian Roschke
- Enhanced Radio-SLAM Algorithm Using Building Geometry Constraints
  Zhen LYU, Guohao Zhang
- Studies: A Managed Solution for Standardized, Scalable, Privacy‑First Smartphone Sensor Data Collection for Indoor Positioning Research
  Kelvin Tsz Hei Choi
- Adaptive Dynamic Adjustment Kalman Filter (ADA-KF) for Robust Clock Synchronization in High-Mobility Wireless Environments
  Xiao Jiang, Zhongliang Deng, Songfeng Yang, Mingyang Ma
- Particle Filter-Based Indoor Localization with Learning Based PDR and Monocular Depth-Aided BIM Matching
  Pravin Kumar Jaisawal, Youness Dehbi, Harald Sternberg
- From Research to App: Personalized Inertial Navigation for the Visually Impaired
  Tommy Moisan, Hanyuan Fu, Valerie Renaudin, Mohamad Issam Sayyaf
- Large Scale Point Cloud Semantic Segmentation for Indoor Digital Twin Generation
  Johann Nikolai Hark, Bernd Schaeufele, Ilja Radusch
- Smartphone-Based Attitude-Unconstrained Pedestrian Dead Reckoning System with Positioning Adjustment using Wi-Fi Fingerprinting
  Lingming Yu, Constantina Isaia, Wenyu Cai, Michalis P. Michaelides
- OAM: Object-Aware Memory and Vision-Language Models for Zero-Shot Object Navigation
  Jiahui Wang, Wen Liu, ZhongLiang Deng
- Movement Direction Estimation for Smartwatches in Diverse Exercise via Inertial–GNSS Fusion
  Jae Hong Lee, Chan Gook Park
- FCI-AEKF: A Robust GNSS/5G Hybrid Positioning Framework with Dynamic Motion and Noise Adaptation
  JianQing Wang, Zhongliang Deng, Fen Qiu, Mingyang Ma, Shan Xu
- Range-Angle Likelihood Maps for Indoor Positioning Using Deep Neural Networks
  Muhammad Ammad, Paul Schwarzbach, Michael Schultz, Oliver Michler
- Stride Length Estimation Using Ultra-Wide Band (UWB) Sensors Aided by Inertial Sensors
  Ashwani Kumar, Kourosh Khoshelham, Salil Goel
- ABeL: A Customizable Open-Source Framework for Evaluating 3D Terrestrial Positioning Algorithms
  Simon Huh, Tristan Itschner, Niclas Zeller
- Comparative Evaluation of Sensor-Based PDR and Visual SLAM for Smartphone-Based Indoor Positioning
  Philipp Fiedler
- 6-DoF Optical Positioning System with RSS-AoA Measurements and Harmony Search Refinement
  Elena Aparicio-Esteve, David Molto, Alvaro Hernandez, Jesus Urena
- Synchronization of DJI Tello Group Flights Indoors
  Olha Pohudina, Antonietta Sivo, Nicola Cordeschi, Luigi Alfredo Grieco, Michele Lagioia
- Dense Ground Truth for Indoor Localization Competitions: Foot-mounted IMU-Enhanced Evaluation
  Antonio R. Jimenez Ruiz, Joaquín Torres-Sospedra, Luisa Ruiz-Ruiz
- LEO Satellite Orbit Study to Improve SOOP-based Positioning Precision
  Hugo Renaud, Fernando J. Álvarez
- High-Precision Camera-enabled Visible Light Positioning System with Enhanced LED Recognition
  Bugao Liu, Dingyu Ge, Zhigang Ma, Xiaodong Liu, Zhenghai Wang, Xun Zhang
- Graphic Optimization Method of Crowdsourcing Trajectories Using Geomagnetic Field and Map Loop Closures
  Zilin Hong, Wen Li Yupeng Xia Dongyan Wei Ge Shen
- A Modular Prompting Framework for AI-Guided Unobtrusive User Engagement in Crowd-Powered Indoor Positioning with Semantic Knowledge Graphs and GPT-4-Based LLMs
  Ahmed Mansour
- Effective Indoor Navigation in a Metro System and Dependency on the Positioning Precision
  Mikołaj Piotr Domagalski, Jerzy Jastrzębiec-Jankowski
- Study of BLE6 Ranging Performance in a Utility Basement
  Tim Ulsamer, Christian Mazur, Stefan Knauth
- Battery Efficiency in Vision-Based Indoor Navigation: Energy Considerations in NaVIP
  Jun Yu, Yitian Yang, Mushu Li, Vinod Namboodiri
- Doors as Visual Landmarks for Indoor Positioning
  Miroslav Opiela

### Session 2: Work-in-Progress papers

- Optimized 6G ISAC Beamforming for Target Detection and Localization
  Behzod Mukhiddinov, Di He, Wenxian Yu
- Accurate and Precise Acoustic Positioning Using Simultaneous Transmission of Phase-shifted Pulses
  Masanari Nakamura, Konatsu Abe, Hiromichi Hashizume, Masanori Sugimoto
- Step Counting by Optimum Fusion of IMU Sensor Measurements
  Constantina Isaia, Michalis P. Michaelides
- Study of Monopulse-Antenna System for Angle Estimation in Analog Domain
  Miroslav Hutár, Alejandro Gil-Martinez, José Antonio Lopez-Pastor, Peter Brida, José Luis Gómez Tornero
- A Noble Probabilistic RF Fingerprinting Method by Using Multiple MNO's Cellular Signals on Smart Watch
  Youngsu Cho, Juil Jeon, Jungho Lee, Sunsim Chun, Jinah Kang

2025-09-26: submitted by Lucie Klus, metadata incl. bibliographic data published under Creative Commons CC0
2025-09-30: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) |valid HTML5|