Methods and apparatus for estimating point-of-gaze in three...

A - Human Necessities – 61 – B

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A61B 3/113 (2006.01) A61B 3/14 (2006.01) G06F 3/01 (2006.01)

Patent

CA 2685976

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.

L'invention concerne des procédés pour déterminer un point de regard (POG) d'un utilisateur en trois dimensions. Dans des modes de réalisation particuliers, les procédés mettent en jeu les opérations consistant à : présenter une scène tridimensionnelle aux deux yeux de l'utilisateur ; capturer des données d'image comprenant les deux yeux de l'utilisateur ; estimer des premier et second vecteurs de ligne de visée (LOS) dans un système de coordonnées tridimensionnel pour les premier et second yeux de l'utilisateur sur la base des données d'image ; et déterminer le POG dans le système de coordonnées tridimensionnel à l'aide des premier et second vecteurs de LOS.

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