Objective Video-Based Tremor Assessment for Movement Disorders using Open-Source Software

Shivanthan Yohanandan1, Chathura Perera1, Mary Jones2, Richard Peppard2, Thushara Perera1

  • 1Bionics Institute
  • 2St. Vincent's Hospital



4-Page Contributed Papers (Oral)


09:30 - 11:00 | Wed 8 Nov | Room C1-C2 | WAT2

Technical Session Track 2


Tremor is an involuntary rhythmic muscle movement assessed subjectively by specialists. To improve accuracy and mitigate bias, tremor must be video recorded and rated by multiple experts. Existing video-based motion tracking techniques can be applied to quantify tremor assessment; though, such methods rely on sophisticated and expensive instrumentation as well as specialized skin markers. This paper describes a low-cost markerless method using accessible hardware and open-source software. In a cohort of 8 subjects with tremor undergoing deep brain stimulation therapy, we show our video-based technique has strong concordance (r = 0.93, p < 0.001) with expert tremor ratings. This makes it suitable for point-of-care assessment as well as use in future structured clinical trials.

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