Video
Eye Tracker（ビデオ
アイ トラッカー）
Version 50Hz/250Hz
Cambridge Research Systems 社 |
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仕様詳細 ≫ |
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| Technical Specification |
- Measurement technique: Video. Pupil and dual first Purkinje
image
- Guaranteed sampling frequency: 50Hz
- Resolution: 0.1°
- Accuracy: 0.5° - 0.25°
- Horizontal range: ±40°
- Vertical range: ±20°
- Allowable head movement: ±10mm
- Latency: One frame (20ms)
- Measurement units: Fick, Helmholtz coordinates in degrees
and screen position in mm
- CPU utilization: 10% for eye tracking with mimic and camera
window (typical on a 1.8GHz Athlon processor)
- Software triggers: Implemented as Callback to user routine
when subject looks into Region of Interest (ROI)
- Number of ROIs: Over 100
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| Optics |
- Infrared illumination wavelength: 930nm
- Camera type: 50Hz image capture: Dedicated 32 bit, 33Mhz,
PCI bus-mastering
- frame grabber for PC
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| Supplied Software |
- In process COM server: Dual interface support late and
early binding, with complete type library
- Toolbox demonstration programs: For Delphi, Visual Basic,
C++Builder and MATLAB. Full source code provided
- videoEyetrace: Complete eye tracking environment, with
mimic display and scrolling eye position graph. Includes
visual stimuli for saccade and smooth pursuit experiments,
plus bitmap images for reading and visual scanning experiments
- GazeTrackerTM
analysis software is NOT included, but can be purchased
with the Video Eyetracker Toolbox at a special package price.
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| Minimum System Requirements |
- Processor: 2 GHz Pentium 4 or AMD Athlon
- Memory: 256 MB RAM
- Hard disk drive 1GB
- Stimulus Display: ViSaGe
- visual stimulus generator or dual VGA display
Motherboard: One free PCI slot to accommodate 125 mm x 70
mm PCI frame grabber. A second slot is necessary for the
- optional VSG2/5 visual stimulus generator
- Windows: Windows 98 SE or later
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