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3D electrode localization on wireless sensor networks for wearable BCI.
Figueiredo, C P; Dias, N S; Hoffmann, K P; Mendes, P M.
Affiliation
  • Figueiredo CP; University of Minho, Industrial Electronics Deptartment, Guimarães, Braga, Portugal. cpfigueiredo@dei.uminho.pt
Article in En | MEDLINE | ID: mdl-19163177
This paper presents a solution for electrode localization on wearable BCI radio-enabled electrodes. Electrode positioning is a common issue in any electrical physiological recording. Although wireless node localization is a very active research topic, a precise method with few centimeters of range and a resolution in the order of millimeters is still to be found, since far-field measurements are very prone to error. The calculation of 3D coordinates for each electrode is based on anchorless range-based localization algorithms such as Multidimensional Scaling and Self-Positioning Algorithm. The implemented solution relies on the association of a small antenna to measure the magnetic field and a microcontroller to each electrode, which will be part of the wireless sensor network module. The implemented solution is suitable for EEG applications, namely the wearable BCI, with expected range of 20 cm and resolution of 5 mm.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Telemetry / Computer Communication Networks / Monitoring, Ambulatory Limits: Humans Language: En Journal: Annu Int Conf IEEE Eng Med Biol Soc Year: 2008 Document type: Article Affiliation country: Portugal Country of publication: United States

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Telemetry / Computer Communication Networks / Monitoring, Ambulatory Limits: Humans Language: En Journal: Annu Int Conf IEEE Eng Med Biol Soc Year: 2008 Document type: Article Affiliation country: Portugal Country of publication: United States