Multiscale evolution of attractor-shape descriptors for assessing Parkinson's disease severity

Anirudh Som; Narayanan Krishnamurthi; Vinay Venkataraman; Karthikeyan Natesan Ramamurthy; Pavan Turaga

doi:10.1109/GlobalSIP.2017.8309098

Multiscale evolution of attractor-shape descriptors for assessing Parkinson's disease severity

Anirudh Som, Narayanan Krishnamurthi, Vinay Venkataraman, Karthikeyan Natesan Ramamurthy, Pavan Turaga

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

We propose a nonparametric framework for analyzing and modeling dynamic postural shifts of human subjects. The postural shifts are represented in the phase space using time-delay embeddings and novel shape-theoretic features are extracted. The proposed multiscale descriptors are used as discriminative features to differentiate dynamical systems. The descriptors are simple and easy to compute, and model the multiscale characteristics of the attractor's multi-dimensional shape measurements. We demonstrate the usefulness of these features by using them to classify subjects into healthy and those affected by Parkinson's disease. We also use these features to assess the severity of the disease. In all these use cases, the proposed multiscale features perform better than their global counterparts.

Original language	English (US)
Title of host publication	2017 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	938-942
Number of pages	5
Volume	2018-January
ISBN (Electronic)	9781509059904
DOIs	https://doi.org/10.1109/GlobalSIP.2017.8309098
State	Published - Mar 7 2018
Event	5th IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017 - Montreal, Canada Duration: Nov 14 2017 → Nov 16 2017

Other

Other	5th IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017
Country	Canada
City	Montreal
Period	11/14/17 → 11/16/17

Keywords

Multiscale
Parkinson's Disease Severity Assessment
Reconstructed Attractor
Shape Distributions

ASJC Scopus subject areas

Information Systems
Signal Processing

Access to Document

10.1109/GlobalSIP.2017.8309098

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Cite this

Som, A., Krishnamurthi, N., Venkataraman, V., Ramamurthy, K. N., & Turaga, P. (2018). Multiscale evolution of attractor-shape descriptors for assessing Parkinson's disease severity. In 2017 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017 - Proceedings (Vol. 2018-January, pp. 938-942). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GlobalSIP.2017.8309098

Multiscale evolution of attractor-shape descriptors for assessing Parkinson's disease severity. / Som, Anirudh; Krishnamurthi, Narayanan; Venkataraman, Vinay; Ramamurthy, Karthikeyan Natesan; Turaga, Pavan.

2017 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017 - Proceedings. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. p. 938-942.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Som, A, Krishnamurthi, N, Venkataraman, V, Ramamurthy, KN & Turaga, P 2018, Multiscale evolution of attractor-shape descriptors for assessing Parkinson's disease severity. in 2017 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017 - Proceedings. vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 938-942, 5th IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017, Montreal, Canada, 11/14/17. https://doi.org/10.1109/GlobalSIP.2017.8309098

Som A, Krishnamurthi N, Venkataraman V, Ramamurthy KN, Turaga P. Multiscale evolution of attractor-shape descriptors for assessing Parkinson's disease severity. In 2017 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017 - Proceedings. Vol. 2018-January. Institute of Electrical and Electronics Engineers Inc. 2018. p. 938-942 https://doi.org/10.1109/GlobalSIP.2017.8309098

Som, Anirudh ; Krishnamurthi, Narayanan ; Venkataraman, Vinay ; Ramamurthy, Karthikeyan Natesan ; Turaga, Pavan. / Multiscale evolution of attractor-shape descriptors for assessing Parkinson's disease severity. 2017 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2017 - Proceedings. Vol. 2018-January Institute of Electrical and Electronics Engineers Inc., 2018. pp. 938-942

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