How Tobii Dynavox eye tracking works

Summary

Tobii Dynavox eye trackers use advanced technology to allow users to control computers with their eyes, eliminating the need for a traditional mouse or keyboard. The system tracks eye movement by emitting near-infrared light and analyzing reflections from the eyes. Tobii's unique 3D eye model allows for accurate tracking even with head movement, making it ideal for users with conditions like cerebral palsy. The trackers dynamically switch between bright and dark pupil tracking for optimal accuracy. Learn more about these innovative features at www.tobiidynavox.com.

Takeaways

• 👁️ Eye tracking technology monitors where a person is looking on a computer screen.
• 🖥️ This technology can also be used to control a computer without a traditional keyboard or mouse.
• 🔆 The system works by sending near-infrared light from illuminators, which is reflected by the eyes and registered by a camera.
• 📍 Through advanced filtering and calculations, the eye tracker determines where the user is looking and positions the cursor accordingly.
• 🔬 Tobii Dynavox eye trackers utilize a unique and accurate 3D model of the human eye, enabling head movement without losing precision.
• 🧑‍🦽 This feature is particularly useful for people with conditions like cerebral palsy, who may have uncontrolled head movements.
• 🎯 For precise tracking, the system locates the user's pupils using either bright or dark pupil tracking methods.
• 📸 Bright pupil tracking is similar to the red-eye effect in flash photography, while dark pupil tracking avoids it by changing the illuminator's position.
• ✨ Tobii Dynavox eye trackers can automatically switch between bright and dark pupil tracking for an optimized experience.
• 🌐 Tobii Dynavox offers many unique features in their eye tracking systems, and more information is available on their website.

Q & A

What is eye tracking technology used for?

Eye tracking technology is used to determine where a person is looking on a computer screen and can also be used to control the computer using the eyes instead of traditional input methods like a keyboard and mouse.

How does an eye tracker work?

An eye tracker uses illuminators to send out near-infrared light, which reflects off the eyes. A camera captures these reflections, and through filtering and advanced calculations, the system determines where on the screen the user is looking, allowing precise cursor control.

What is unique about Tobii Dynavox eye trackers compared to others?

Tobii Dynavox eye trackers are unique due to their use of a highly accurate 3D model of the human eye, allowing users to move their heads freely without losing precision. This feature is particularly beneficial for individuals with conditions like cerebral palsy.

Why is head movement not a problem when using Tobii Dynavox eye trackers?

Tobii Dynavox eye trackers can accommodate head movement thanks to their accurate 3D model of the human eye, which ensures precise tracking even if the user moves their head.

Who benefits the most from Tobii Dynavox eye trackers?

Individuals with uncontrolled head movement, such as those with cerebral palsy, benefit significantly from Tobii Dynavox eye trackers, as they allow free head movement without sacrificing accuracy.

What is the difference between bright and dark pupil tracking?

Bright pupil tracking creates a red-eye effect similar to when using a camera flash, while dark pupil tracking avoids this effect by positioning the illuminators farther from the lens. Tobii Dynavox eye trackers dynamically switch between the two for optimal tracking.

How do Tobii Dynavox eye trackers ensure optimized eye tracking?

Tobii Dynavox eye trackers dynamically switch between bright and dark pupil tracking to provide an optimized eye tracking experience based on the current lighting conditions and user needs.

What role do illuminators play in eye tracking?

Illuminators emit near-infrared light that reflects off the user's eyes, which is then captured by a camera. These reflections are used to calculate where the user is looking on the screen.

Why is the 3D model of the eye important in Tobii Dynavox eye trackers?

The 3D model allows for accurate tracking even with head movement, which enhances usability for individuals who cannot keep their heads still.

Where can someone learn more about Tobii Dynavox eye trackers?

For more information on Tobii Dynavox eye trackers, you can visit the official website at www.tobiidynavox.com.