Machine learning techniques demonstrating individual movement patterns of the vertebral column: the fingerprint of spinal motion

Carlo Dindorf, Jürgen Konradi, Claudia Wolf, Bertram Taetz, Gabriele Bleser, Janine Huthwelker, Friederike Werthmann, Philipp Drees, Michael Fröhlich and Ulrich Betz

Computer Methods in Biomechanics and Biomedical Engineering, 2022, vol. 25, issue 7, 821-831

Abstract: Surface topography systems enable the capture of spinal dynamic movement; however, it is unclear whether vertebral dynamics are unique enough to identify individuals. Therefore, in this study, we investigated whether the identification of individuals is possible based on dynamic spinal data. Three different data representations were compared (automated extracted features using contrastive loss and triplet loss functions, as well as simple descriptive statistics). High accuracies indicated the possible existence of a personal spinal ‘fingerprint’, therefore enabling subject recognition. The present work forms the basis for an objective comparison of subjects and the transfer of the method to clinical use cases.

Date: 2022
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DOI: 10.1080/10255842.2021.1981884

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