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Head mounted eye tracking device and method for providing drift free eye tracking through a lens system

A tracking device, head-mounted technology, applied in the direction of eye testing equipment, applications, computer parts, etc., can solve the problems of reduced accuracy, invalid calibration of eye tracking equipment, etc., to achieve great flexibility, high tracking quality and Accuracy, the effect of improving visual perception

Active Publication Date: 2017-12-01
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices use an appearance-based interpolated eye-tracking method, which has the significant disadvantage that when the relative position of the device to the user's eyes changes, for example if the head-mounted eye-tracking device slides slightly Invalid calibration of tracking device
This results in less accuracy after moving

Method used

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  • Head mounted eye tracking device and method for providing drift free eye tracking through a lens system
  • Head mounted eye tracking device and method for providing drift free eye tracking through a lens system
  • Head mounted eye tracking device and method for providing drift free eye tracking through a lens system

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Embodiment Construction

[0049] figure 1 A schematic diagram of a head-mounted eye-tracking device 10a according to a first embodiment of the present invention is shown. In general, the head-mounted eye-tracking device 10a includes a capture device C that may include one or more cameras or sensors for photographing the eyes of a user wearing the head-mounted eye-tracking device 10a. Section 12 photos. In addition, eye-tracking device 10a includes optical components 14, which may include one or more lenses, prisms, or other optical elements. In this embodiment, the optics 14 comprise a lens E1 and an optional further lens En consisting of figure 1 The dotted lens outline in is shown. Alternatively, the eye-tracking device 10a may include one or more light sources L, figure 1 Two of them are exemplarily shown in . As further optional components, the eye-tracking device 10a may include a thermal mirror M and a display device 16 . Furthermore, the eye tracking device 10 a comprises a processing unit...

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Abstract

The invention relates to a method and a head mounted eye tracking device (10a, 10b) for determining at least a feature of an eye (12), wherein the eye tracking device (10a, 10b) comprises a capturing device (C) for capturing light reflected by the eye (12) and an optical component (14; E, E1, En, E2) capable of altering a propagation direction of the light passing through the optical component (14; E, E1, En, E2). The eye tracking device (10a, 10b) is configured such that when fixed to the head of the user the light captured by the capturing device (C) has passed through the optical component (14; E, E1, En, E2) and constitutes at least part of an image and the feature is determined on the basis of the image in dependency of an information about a relative position between the eye (12) and the head mounted eye tracking device (10a, 10b).

Description

technical field [0001] The invention relates to a head-mounted eye-tracking device for determining at least one first characteristic of at least one eye, wherein the head-mounted eye-tracking device comprises a device for capturing light reflected by at least one eye of a user. and at least one optical component capable of changing the direction of propagation of light passing through the optical component. Furthermore, the invention relates to a method of determining at least one first characteristic of at least one eye of a user using a head-mounted eye-tracking device. Background technique [0002] Head-mounted eye-tracking devices are known in the prior art, which may include a frame mountable to a user's head and lenses inserted into the frame through which the user can see. Typically, eye tracking devices include cameras that capture images of the user's eyes and determine gaze direction therefrom. These cameras can be placed in the frame and can have a path directly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/113
CPCA61B3/113G06F3/013G06V40/19G06V40/193G06V2201/07G06T7/80G06T7/74G06T7/251G06T7/248A61B3/0025A61B3/14G06T2207/30201
Inventor T·森格劳布W·尼斯蒂科M·涅瑟M·哈勒尔D·威廉姆斯
Owner APPLE INC