Tobii Ab

Jonas Andersson

Simon Gustafsson

Daniel Johansson Tornéus

Richard Hainzl

Ralf Biedert

Anders Kingbäck

Robin Thunström

Anders Clausen

Mårten Skogö

Erik Engwall

Mark Ryan

Niklas Blomqvist

Johannes Kron

Torbjörn Sundberg

Dennis Rådell

Simon Olin

Björn Nutti

Catarina Tidbeck

Pravin Kumar Rana

Daniel Tornéus

Jan Norden

An augmented reality, virtual reality, or other wearable apparatus comprises an eye tracking device comprising an image sensor, a lens, and one or more processors. In some embodiments, the lens comprises a marker, and the one or more processors are configured to receive an image from the image sensor, wherein the image shows the marker, determine a distance from the image sensor to the marker based on the image, and change a calibration parameter of an eye tracking algorithm based on the distance. In some embodiments, the one or more processors are configured to receive image data from the image sensor, wherein the image data corresponds to an image as observed through the lens, determine a level or pattern of pincushion distortion in the image based on the image data, and change a calibration parameter of an eye tracking algorithm based on the level or the pattern of pincushion distortion.

Systems and methods for eye tracking in virtual reality and augmented reality applications

A device () adapted to be worn by a user is disclosed, comprising an optical element, a light source and a sensor. The optical element is adapted to be arranged in front of an eye () of the user and formed of a light-transmitting material allowing the user to see through the optical element, wherein the light source is arranged on the optical element and adapted to illuminate at least a part of the eye of the user. Further, the sensor is adapted to capture light which has been emitted from the light source and reflected on the eye. A system for is also disclosed, comprising such a device and a processor adapted to determine a gaze direction of the user based on the light captured by the sensor.

Eye-tracking enabled wearable devices

A system for determining a gaze direction of a user is disclosed. The system may include a first illuminator, a first profile sensor, and at least one processor. The first illuminator may be configured to illuminate an eye of a user. The first profile sensor may be configured to detect light reflected by the eye of the user. The processor(s) may be configured to determine a gaze direction of the user based at least in part on light detected by the first profile sensor.

A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, a movement sensor, and a control unit. The frame may be a frame adapted for wearing by a user. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user, and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The movement sensor may be configured to detect movement of the frame. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, receive the image data from the image sensors, and receive information from the movement sensor.

Portable eye tracking device

A method for controlling illuminators in an eye tracking system and a corresponding system are disclosed. The system includes a plurality of illuminators arranged such that each illuminator of the illuminators is located at a respective fixed position in relation to an eye of a user when using the system. The method comprises illuminating the eye of the user by means of the plurality of illuminators, and receiving an image of the eye of the user from an image sensor, the image resulting from the image sensor detecting light from the plurality of illuminators reflected from the eye of the user and reflected from an optic arrangement located between the plurality of illuminators and the eye of the user. The method further comprises determining a pupil position of a representation in the image of a pupil of the eye, and identifying one or more blobs in the image, wherein a blob is a representation in the image of a reflection from the optic arrangement of light from an illuminator of the plurality of illuminators. On a condition that there is at least one blob of the one or more blobs for which one or more predefined criteria are met, the method comprises identifying an illuminator of the plurality of illuminators associated with the at least one blob of the one or more blobs, and switching off the identified illuminator of the plurality illuminators.

Method and system for controlling illuminators

A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user and include an eyeglass frame having a nose bridge. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The optics holding member may be coupled with the nose bridge. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, and receive the image data from the at least one image sensor.

A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user, and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, and receive the image data from the at least one image sensor.

Growing community of inventors

Danderyd, Sweden

Jonas Andersson