Frequently Asked Questions
Q: How does eye tracking work?
A: Using two infrared light sources and a single camera, our unique dark pupil technology enables real-time eye tracking and eye control on any computer screen. Two “glints” appear on the pupil of the user’s eye from the IR light sources, and after a short calibration, the camera is able to know when and where the user looks.
Q: Does EyeTech license their eye tracking algorithm to other companies?
A: Yes. Since 1996, our engineering team has worked on dozens of projects in a variety of market applications. We offer flexible and affordable licensing options for both software and/or hardware solutions which can also be branded according to your needs. Our engineering team will work with your team every step of the way from selecting the right optics to developing custom software that is specific to your application. Our team of electrical and mechanical engineers is here to make your vision of adding eye tracking technology to your next products become a reality.
Q:Does the EyeTech eye tracking algorithm only work with certain cameras or will it work with a variety of off the shelf cameras?
A:Our EyeTech algorithm is very robust and can work on a variety of camera systems. We can work with you to help you select a camera system that will meet your needs.
Q: How many cameras does the EyeTech eye tracker use?
A: Our system uses a single camera to do both single and binocular eye tracking.
Q: Do the EyeTech eye trackers work with glasses? Contacts?
A: Yes. Our EyeTech algorithm works well with most glasses and contacts. Hard-transition bi-focal glasses can cause problems. It is recommended the user upgrade to progressive bi-focal lenses if bi-focals are required. Hard contacts can also cause problems. It is recommended that the user wear soft contacts if contacts are required.
Q: Where can I go to try a system?
A: At EyeTech, we have a worldwide distributor network along with many Universities and Technology Centers open to the public where interested users may be able to try out our technology. Contact us and we can put you in contact with your nearest distributor or demonstration center.
Q: Is there funding to help pay for these systems for people with disabilities?
A: Yes. Medicare/Medicaid, VocRehab, Worker’s Compensation, health insurance and other private employer and government programs may pay for the eye tracking device if the user has a medical necessity. Contact one of our AAC dealers to learn about your options.
Q: Can I buy the eye tracker separately to add to my existing computer?
A: Yes. Our eye trackers easily connect to any screen, from small tablets and laptops all the way to large TV displays.
Q: Does your system work in combination with Dragon Naturally Speaking?
A: Yes. Business professionals who currently use Dragon Naturally Speaking as their keyboard should try using our eye tracking technology as their mouse for fast and efficient hands-free computing. The two programs work well together right out of the box.
Q: Does your system work in combination with Speech Generation Software?
A: Yes. Contact one of our AAC dealers to learn about your options.
Q: What happens if two people are in front of the camera at the same time?
A: It will only track the first person found by the camera.
Q: How accurately can I position the on-screen cursor?
A: It is not as pin-point accurate as a traditional hand mouse; however, with practice, a majority of users experience high levels of accuracy. To put it into perspective-- if a user is looking at an icon, the on-screen cursor may be a little high/low or left/right of where he wants to place it (within the size of a dime on-screen). The reason it varies is based on how well the user calibrates and how smooth their eye movements are. With practice, users naturally learn to compensate, and adjust the position of the on-screen cursor to exactly where they want it to be. Click Here to watch a demonstration done by Robert Chappell, Founder/CEO of EyeTech, and see how accurate the on-screen cursor can be.
Q: Do the EyeTech eye trackers work with operating systems other than Windows, like Apple, Linux or Android devices?
A: The AEye technology paves the way for multi-OS support. We currently have support for both Windows and Android.
Q: Can I use the eye tracker on two screens?
A: Yes, it is possible, but it requires a custom setup and there are some technical limitations. For further information on tracking over multiple monitors contact us at firstname.lastname@example.org.
Q: How does the eye tracker mount?
A: Depending on which model you choose you can mount directly to the monitor using our VESA compatible mounting bracket or place the eye tracker directly below the monitor with a magnetic strip or using our flexible desktop stand. The desktop stand allows for greater adjustment of tilt and makes it easier for people of different heights to be tracked.
Q: How close/far do I need to be from the screen to be able to track?
A: Our eye tracking algorithm offers both close and long distance tracking (as close as 18 inches to as far as 10 feet away from the display). It really depends on the application and the model you choose.
Q: What is the warranty on the hardware and software?
A: We offer a 2-year hardware warranty, and 2-years of free software updates.
Q: Do you have a rental or lease-to-own program so I can I try it out before I buy?
A: Rentals are available. Email email@example.com to communicate with an EyeTech associate.
Q: How does the system operate in different lighting conditions (outside, inside a vehicle, in a dark room, etc.)?
A: Since the system uses an infrared camera and provides its own light source, you can track both outside in sunny lighting conditions as well as in complete darkness.
Q: Do IR lights cause harm to the eyes?
A: The EyeTech system uses IR lights to illuminate the eyes and provide reference points for the eye tracker. The IR light is produced by LED’s at a wavelength of 850 nanometers. This type of IR light occurs naturally in sunlight and in light from incandescent lamps.
The IR light intensity at the user’s eye is less than is often experienced by most people during their daily activities. This is also well within the safety guidelines given in the book 2007 TLVs and BEIs by the American Conference of Governmental Industrial Hygienists.
Q: Can I place the eye tracker on top of the screen instead of the bottom of the screen?
A: No. For optimal performance we recommend the eye tracker be placed below the bottom edge of the monitor.