This package contains the datasets and supplementary materials used in the IPIN 2021 Competition. Contents:- IPIN2021_Track4_CallForCompetition_v2.1.pdf: Call for competition including the technical annex describing the competition - 01-Logfiles: This folder contains 2 files for each Trials (Testing, Scoring01, Scoring02) - IPIN2021_T4_xxx.csv : data file containing ACCE, ROTA, MAGN, PRES, TEMP, GSBS, GOBS, POSI frames - IPIN2021_T4_xxx_gnss_ephem.nav : for trajectory estimation. - 02-Supplementary_Materials: This folder contains the datasheet files of the different sensors, a static logfile of about 12 hours that can be used for sensors bias estimation (Allan Variance) and a logfile of about 1 minute that can be used to calibrate the magnetometer sensor (Magnetometer Calibration). - 03-Evaluation: This folder contains the scripts used to calculate the competition metric, the 75th percentile on all evaluation points. It requires Matlab Mapping Toolbox. We also provide ground truth as 1 CSV file. It contains samples of reported estimations and the corresponding results. Just run script_Eval_IPIN2021.mat We provide additional information on the competition at: https://evaal.aaloa.org/2021/call-for-competitions Citation Policy:Please, cite the following works when using the datasets included in this package: Ortiz, M.; Zhu, N.; Renaudin, V. Datasets and Supporting Materials for the IPIN 2021 Competition Track 4 (Foot-Mounted IMU based Positioning, offsite-online), Zenodo 2021https://doi.org/10.5281/zenodo.10497732 Check the citation policy at: https://doi.org/10.5281/zenodo.10497732 Contact:For any further questions about the database and this competition track, please contact: Miguel Ortiz (miguel.ortiz@univ-eiffel.fr) at the University Gustave Eiffel, France. Ni Zhu (ni.zhu@univ-eiffel.fr) at the University Gustave Eiffel, France. Acknowledgements:We thank all the staff of Atlantis Le Centre (Shopping Mall in Nantes) for their invaluable support throughout our collection days.