Systems and methods for performing eye gaze tracking

A technology for eyes and tracking programs, which is applied in the direction of testing eye equipment, acquiring/recognizing eyes, character and pattern recognition, etc., and can solve problems such as system crashes

Pending Publication Date: 2019-04-26
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the reliance on flicker, the system will still crash in relatively common cases where flicker is absent or difficult to recognize

Method used

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  • Systems and methods for performing eye gaze tracking
  • Systems and methods for performing eye gaze tracking
  • Systems and methods for performing eye gaze tracking

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Embodiment Construction

[0050] System Overview

[0051] The present invention relates to an eye gaze tracking system that utilizes multiple different eye gaze tracking programs under different conditions to increase the robustness, reliability and accuracy of the tracking. In one embodiment of the invention, two eye gaze tracking algorithms are utilized depending on the detection of corneal reflections ("glitters") in the images.

[0052] first reference figure 1 , schematically illustrates a system 100 for computing an eye gaze vector of an object 102 .

[0053] System 100 includes an imaging device in the form of a time-of-flight camera 104 for capturing time-lapse images of a subject's face 106 including one or both of the subject's eyes 108 and 110 . Time-of-flight camera 104 captures three-dimensional images of a scene within its field of view. Each captured image is stored as a data matrix representing three dimensions: the X and Y dimensions represent the conventional transverse image plane...

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Abstract

Described herein are systems and methods for performing eye gaze tracking. The method includes capturing, from one or more imaging devices, a sequence of time separated images of the subject's face including one or both of the subject's eyes; processing the images to detect specular reflections present in the images; characterizing the detected specular reflections into corneal reflections and non-corneal reflections; upon detection of at least one corneal reflection, performing a first eye gaze tracking procedure based on the relative positions of the at least one corneal reflection and at least one reference eye feature; upon detection of no corneal reflections, performing a second eye gaze tracking procedure on one or both eyes of the subject based on the estimation of head pose of thesubject and outputting eye gaze vectors of one or both eyes from the first or second eye gaze tracking procedure.

Description

technical field [0001] The present invention relates to eye gaze tracking. In particular, the present invention relates to a hybrid method for calculating eye gaze vectors of objects from different eye tracking programs, for applications such as vehicle driver drowsiness and attention monitoring systems. Although some embodiments will be described herein with particular reference to this application, it should be understood that the invention is not limited to this field of use, and is applicable in a wider environment. Background technique [0002] Any discussion of background art throughout the specification should in no way be considered as an acknowledgment that such art is widely known or forms part of the common general knowledge in the field. [0003] Eye gaze tracking is an important measurement in a variety of applications including athletic training, cognitive and neurological research, marketing research, and vehicle driver attention monitoring systems. The most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T1/00
CPCG06T2207/10021G06T2207/10028G06T7/73A61B3/113G06T2207/20084G06V40/18G06V40/193G06V40/19G06V40/161G06F3/013
Inventor 塞巴斯蒂安·罗格奥克斯蒂莫西·詹姆斯·亨利·爱德华
Owner SEEING MACHINES
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