Paper Info
Title
Modeling 3D tremor signals with a quaternion weighted Fourier Linear Combiner
Abstract
Physiological tremor is an involuntary and rhythmic movement of the body specially the hands. The vibrations in hand-held surgical instruments caused by physiological tremor can cause unacceptable imprecision in microsurgery. To rectify this problem, many adaptive filtering-based methods have been developed to model the tremor to remove it from the tip of microsurgery devices. The existing tremor modeling algorithms such as the weighted Fourier Linear Combiner (wFLC) algorithm and its extensions operate on the x, y, and z dimensions of the tremor signals independently. These algorithms are blind to the dynamic couplings between the three dimensions. We hypothesized that a system that takes these coupling information into account can model the tremor with more accuracy compared to the existing methods. Tremor data was recorded from five novice subjects and modeled with a novel quaternion weighted Fourier Linear Combiner (QwFLC). We compared the modeling performance of the proposed QwFLC with that of the conventional wFLC algorithm. Results showed that QwFLC improves the modeling performance by about 20% at the cost of higher computational complexity.
Year
DOI
Venue
2015
10.1109/NER.2015.7146744
Neural Engineering
Keywords
DocType
ISSN
adaptive filters,biomechanics,medical signal processing,muscle,surgery,adaptive filtering-based methods,conventional wFLC algorithm,coupling information,dynamic couplings,hand-held surgical instruments,high computational complexity,involuntary-rhythmic movement,microsurgery,microsurgery devices,modeling 3D tremor signals,modeling performance,physiological tremor,quaternion weighted Fourier linear combiner,tremor data,tremor modeling algorithms,vibrations
Conference
1948-3546
Citations 
PageRank 
References 
2
0.42
4
Authors
4
Name
Order
Citations
PageRank
kabita adhikari120.42
Sivanagaraja Tatinati2101.70
Veluvolu, K.C.3445.07
Kianoush Nazarpour47519.08