Yes / Aims: To create a gait database with optimum accuracy of joint rotational data and an accu-rate
representation of 3D volume, and explore the potential of using the database in studying the
relationship between static and dynamic features of a human’s gait.
Study Design: The study collected gait samples from 38 subjects, in which they were asked to
walk, run, walk to run transition, and walk with a bag. The motion capture, video, and 3d
measurement data extracted was used to analyse and build a correlation between features.
Place and Duration of Study: The study was conducted in the University of Bradford. With the
ethical approval from the University, 38 subjects’ motion and body volumes were recorded at the
motion capture studio from May 2011- February 2013.
Methodology: To date, the database includes 38 subjects (5 females, 33 males) conducting walk
cycles with speed and load as covariants. A correlation analysis was conducted to ex-plore the
potential of using the database to study the relationship between static and dynamic features. The
volumes and surface area of body segments were used as static features. Phased-weighted
magnitudes extracted through a Fourier transform of the rotation temporal data of the joints from the motion capture were used as dynamic features. The Pearson correlation coefficient is used to
evaluate the relationship between the two sets of data.
Results: A new database was created with 38 subjects conducting four forms of gait (walk, run,
walk to run, and walking with a hand bag). Each subject recording included a total of 8 samples of
each form of gait, and a 3D point cloud (representing the 3D volume of the subject). Using a Pvalue
(P<.05) as a criterion for statistical significance, 386 pairs of features displayed a strong
relationship.
Conclusion: A novel database available to the scientific community has been created. The
database can be used as an ideal benchmark to apply gait recognition techniques, and based on
the correlation analysis, can offer a detailed perspective of the dynamics of gait and its relationship
to volume. Further research in the relationship between static and dynamic features can contribute
to the field of biomechanical analysis, use of biometrics in forensic applications, and 3D virtual walk
simulation.
| Identifer | oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/8161 |
| Date | 25 November 2014 |
| Creators | Alawar, Hamad M.M.A., Ugail, Hassan, Kamala, Mumtaz A., Connah, David |
| Source Sets | Bradford Scholars |
| Language | English |
| Detected Language | English |
| Type | Article, Accepted Manuscript |
| Rights | © 2016 Alawar et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
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