ASL Software

ASL MobileEye

The Mobile Eye is a truly tetherless eyetracking system for use when total freedom of movement is required and video with overlayed cursor is the desired output. This system is designed to be easily worn by an active subject. The eye tracking optics are extremely lightweight and unobtrusive and the recording device is small enough to be worn on a belt. The eye image and scene image are interleaved and saved on a DVCR tape. This method insures no loss of resolution, Tape duration is 75 minutes, battery operation, at full charge, is 130 minutes. This tape is then transferred to an included PC that separates the images, does the analysis and creates a scene video with cursor overlay. Sample rate is 25/30Hz.
	The system is designed for indoor or outdoor use and is compact and rugged enough to be used in may sports applications. Additional optics and recorders can be purchased for use with the system allowing for multiple recordings to be made at the same time. The Mobile Eye comes as a complete system with all necessary hardware and software. The portable DVCR can be connected directly to the PC for real time tracking in a laboratory setting.

The Mobile Eye

SYSTEM COMPONENTS

Head mounted optics (76g)
Color scene camera
Modified DVCR recorder
Eye Vision Software
PC Pentium 4, 2.8GHz processor

SYSTEM OUTPUTS

Recordable video with moving cursor
Data log file (ASCII data file)
x and y coordinates
pupil radius, in eye image pixels
eye direction with respect to the scene image
mouse cursor position with respect to the scene image

The Mobile Eye

SPECIFICATIONS

Control Computer	Pentium 4, 2.8GHz Desktop PC
	EyeVision Software Internal framegrabber
RMU:	Modified DVCR
Head Mounted Optics:
Sampling and output rates:	25Hz or 30Hz
Measurement principle:	pupil-corneal reflection w/custom outdoor enhancements
System accuracy:	0.5 degrees visual angle
Resolution:	.10 degree visual angle
Head movement:	unlimited
Visual range:	50 degrees horizontal, 40 degrees vertical
Weight:	(including glasses, optics module, monocle and scene camera assembly): 76g
Included Equipment:	Pentium 4 desktop computer Glasses mounted optics w/head mounted scene camera (color) Modified portable DVCR EyeVision Software

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