Gaze-tracking system and method employing selective glints
Номер патента: EP4320499A1
Опубликовано: 14-02-2024
Автор(ы): Oleksii Shtankevych, Thomas Carlsson, Tomi Lehto, Ville Miettinen
Принадлежит: Varjo Technologies Oy
Опубликовано: 14-02-2024
Автор(ы): Oleksii Shtankevych, Thomas Carlsson, Tomi Lehto, Ville Miettinen
Принадлежит: Varjo Technologies Oy
Реферат: Disclosed is a gaze-tracking system (100) for use in head-mounted display apparatus (102, 200, 300). The gaze-tracking system comprises: illuminators (104); camera (106); and processor (108) configured to: illuminate illuminators in sequential manner; control camera to capture eye images of user's eye (308, 310) during illumination of illuminators; identify reflection(s) of illuminator in eye image; determine extent of deformation in shape of reflection(s) with respect to shape of illuminator; determine extent of displacement in position of reflection(s) with respect to position of illuminator; compute user-specific score for illuminator based on extents of deformation and displacement; select illuminator(s) based on user-specific scores; illuminate illuminator(s); control camera to capture eye image (306) of user's eye during illumination of illuminator(s); and detect gaze direction of user based upon relative position of pupil of user's eye with respect to reflections of illuminator(s) in eye image.
Gaze-tracking system using illuminators emitting different wavelengths
Номер патента: EP3746837A1. Автор: Mikko Ollila,Klaus Melakari,Oiva Sahlsten. Владелец: Varjo Technologies Oy. Дата публикации: 2020-12-09.