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Locator


Locator (click to enlarge)When used together with Fastrak or Patriot digitizing hardware, Locator allows you to measure accurately landmarks, electrode locations and external head/body shape in 3 dimensions. These data may then be used for coregistration of surface measured potentials with anatomical / functional image data and to improve the precision of mapping and source estimation.  

Functionality

3D Digitization

  • Electrodes locations may be determined by touching with a stylus. Head movement is automatically compensated with 1-3 head mounted sensors.
  • External head shape locations may be determined by "drawing" over the head surface with a stylus. Head movement is automatically compensated with 1-3 head mounted sensors. Location of named points (such as nasion, inion, etc) may be obtained and stored.
  • File Formats BESA and CURRY formats are supported.
  • Other sensors (including optical sensors and magnetic sensors) may also be digitized.
  • Setup functions for electrode localization hardware are available through the LOCATOR menu.

Display

  • Interactive 3D display permits viewing of digitized points as they are added or offline. A manual editing function allows error rejection.

Input/Output

  • User Interface. A conventional Microsoft Windows style graphical user interface is used throughout.
  • Audio prompt allows you to digitize electrodes from a sequence file without looking at the screen.

Inter-module Communication

  • Input:  NONE.
  • Output:  Source Estimator may be used for source estimation.  Visualizer may be used for 3D rendering of head surface.

File I/O

  • Input:  ASCII setup files may be used to store commonly used sequences (e.g. electrode names).
  • Output:  EMSE or BESA format head shape files and ASCII export format that is compatible with other commercial systems.

Other I/O

  • Graphics may be transferred to clipboard for use by other graphics programs or for insertion into word processors.

Documentation

  • Printed user manual, including file formats.
  • Online documentation is bundled with the software.

 

Requirements minimum required   recommended
CPU Intel 486 or equiv,  1 serial port (minimum baud rates 9600) Pentium, serial port baud rate 19.2k or USB port for Patriot
RAM 16 Mbyte  
Hard drive 2 Mbyte for executable additional data storage requirements as needed 
Operating System Win 95/98/ME/NT/2000/XP  
Display SVGA  
Installation medium CD-ROM  
Other hardware Patriot, Fastrak or Isotrak II  
Input modules none  

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