Blickverfolgungsvorrichtung, Programm und Verfahren

Details

Veröffentlichungs-Nr.

EP3413234

Aktenzeichen

EP18176601

Anmeldetag

7. Juni 2018

Veröffentlichung

8. November 2023

Erteilung

8. November 2023

Rechtsraum

EP

IPC

G06V40/18G06V40/16

Abstract

A corneal-reflection-based gaze detection section (28) calculates a time series of a three-dimensional gaze vector in a camera coordinate system from a time series of facial images. A face position-and-orientation estimation section (24) estimates a time series of a three-dimensional position and orientation of a face. An eyeball-center-coordinates transformation section (32) calculates a time series of a three-dimensional position of the eyeball center in a coordinate system of a three-dimensional facial model. A fixed parameter calculation section (33) calculates for use as a fixed parameter a three-dimensional position of the eyeball center in the three-dimensional facial-model coordinate system. An eyeball-center-based gaze detection section (36) uses the three-dimensional position of the eyeball center calculated by the fixed parameter calculation section (33) to calculate a three-dimensional gaze vector from a three-dimensional position of the eyeball center to a three-dimensional position of a pupil center in the camera coordinate system. This enables accurate gaze tracking to be performed using a simple configuration and without performing calibration.

Anmelder

Firmen

AISIN CORPORATION
AISIN SEIKI KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete