Three-dimensional interpolation methods to spatiotemporal EEG mapping during various behavioral states

This work applies a novel method called multiquadratic interpolation that represents a 3D brain activity following a spatiotemporal mode. It also develops other classical interpolation techniques (barycentric, spline), which are based on the calculation of the Euclidean distance between the estimate...

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Bibliographic Details
Published inSignal, image and video processing Vol. 10; no. 5; pp. 943 - 949
Main Authors Nouira, Ibtihel, Abdallah, Asma Ben, Bedoui, Mohamed Hedi
Format Journal Article
LanguageEnglish
Published London Springer London 01.07.2016
Subjects
Computer Imaging
Computer Science
Image Processing and Computer Vision
Multimedia Information Systems
Original Paper
Pattern Recognition and Graphics
Signal,Image and Speech Processing
Vision
3D interpolation techniques
Root mean squared error
Brain activity
Spatiotemporal mode
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Summary:This work applies a novel method called multiquadratic interpolation that represents a 3D brain activity following a spatiotemporal mode. It also develops other classical interpolation techniques (barycentric, spline), which are based on the calculation of the Euclidean distance between the estimated and measured electrodes. Then, it modifies these methods by substituting the Euclidean distance by the corresponding arc length. Starting from 19 real electrodes for generating the electroencephalogram (EEG) potential representations of healthy subjects having three different behavioral brain states, a 3D EEG mapping of 128 electrodes was obtained. The proposed multiquadratic interpolation is evaluated by comparing it with the other methods by calculating the root mean squared error and processing time means.
ISSN:1863-1703
1863-1711
DOI:10.1007/s11760-015-0844-7