公开(公告)号：US10061383B1

公开(公告)日：2018-08-28

申请号：US15268129

申请日：2016-09-16

Applicant: Mirametrix Inc.

Inventor： Cosmin Vasile Ludusan

IPC: G06F3/01 ,  G06T7/00 ,  G06T3/40 ,  G06F3/14 ,  G06K9/00

CPC classification number: G06F3/013 ,  G06F1/1626 ,  G06F1/1686 ,  G06F3/0304 ,  G06K9/00604 ,  G06K9/0061 ,  G06K9/2018 ,  G06K9/52

Abstract: A method is provided for determining a point of gaze directed at a graphical display. The method comprises: a) acquiring an image of at least one eye of a user containing at least one gaze aspect and at least one reference aspect; b) extracting image aspects from the image, the image aspects comprising a set of reference aspects and a set of gaze aspects corresponding to the image; c) extracting a set of features for each of said image aspects; d) computing a set of feature vectors between said set of gaze aspects and said set of reference aspects; e) computing a point of gaze for each of said set of feature vectors, using a predefined mathematical relationship; and f) using a predefined rule to combine the computed points of gaze into a final point of gaze on the graphical display.

公开(公告)号：US09811158B2

公开(公告)日：2017-11-07

申请号：US14263636

申请日：2014-04-28

Applicant: Mirametrix Inc.

Inventor： Craig A. Hennessey ,  Jacob Fiset ,  Nicholas Sullivan

IPC: G09G5/00 ,  G06F3/01 ,  A61B3/113 ,  G01S3/78 ,  G06K9/00

CPC classification number: G06F3/013 ,  A61B3/113 ,  G01S3/7803 ,  G06K9/00604

Abstract: A system and method are provided for calibrating an eye gaze tracking system. The method comprises obtaining gaze data; obtaining at least one key point corresponding to a portion of media content being displayed; linking the gaze data to the at least one key point; and generating one or more calibration parameters by comparing gaze data with associated ones of the at least one key point.

公开(公告)号：US09070017B2

公开(公告)日：2015-06-30

申请号：US13891099

申请日：2013-05-09

Applicant: Mirametrix Inc.

Inventor： Craig A. Hennessey ,  Peter D. Lawrence

IPC: G06K9/00 ,  A61B3/113 ,  G06F3/01

CPC classification number: G06K9/00624 ,  A61B3/113 ,  G06F3/013 ,  G06K9/00604

Abstract: Methods for determining a point-of-gaze (POG) of a user in three dimensions are disclosed. In particular embodiments, the methods involve: presenting a three-dimensional scene to both eyes of the user; capturing image data including both eyes of the user; estimating first and second line-of-sight (LOS) vectors in a three-dimensional coordinate system for the user's first and second eyes based on the image data; and determining the POG in the three-dimensional coordinate system using the first and second LOS vectors.

Abstract translation: 公开了用于确定用户三维视点（POG）的方法。 在特定实施例中，所述方法包括：向用户的双眼呈现三维场景; 捕获包括用户双眼的图像数据; 基于图像数据估计用户的第一和第二眼睛的三维坐标系中的第一和第二视线（LOS）矢量; 以及使用第一和第二LOS矢量确定三维坐标系中的POG。