公开(公告)号：US20190025912A1

公开(公告)日：2019-01-24

申请号：US16069904

申请日：2017-02-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SOICHI KIMURA ,  HIDETOSHI TAKEDA ,  SHINGO YAMAZOE

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

Abstract: An eye tracking method in the disclosure comprises an image-capturing step of capturing a facial image including an eyeball of an object person, light from a light source that emits the light to form a corneal reflex point on the eyeball of the object person who gazes at a predetermined gaze point being reflected from the eyeball, a detecting step of calculating visual line information in a world coordinate system using the facial image captured in the image-capturing step and a correcting step of transforming the visual line information in the world coordinate system calculated in the detecting step into visual line information in a correction coordinate system that is a coordinate system different from the world coordinate system, and correcting the visual line information in the correction coordinate system using correction information for correcting a detection error caused by an individual difference of the eyeball.

公开(公告)号：US20180089508A1

公开(公告)日：2018-03-29

申请号：US15814558

申请日：2017-11-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SOICHI KIMURA ,  HIDETOSHI TAKEDA ,  SHINGO YAMAZOE

IPC: G06K9/00

CPC classification number: G06K9/00604 ,  A61B3/113 ,  B60R11/02 ,  B60R11/04 ,  G06F3/013 ,  G06F3/0304 ,  G06K9/00255 ,  G06K9/0061

Abstract: A visual line measuring device of the present disclosure includes a light source that emits light for forming a corneal reflection point on an eyeball of an object person who gazes at a predetermined gaze point, an image-capturing part that captures a plurality of facial images each of which includes the eyeball of the object person by which the light from the light source is reflected, a detector that calculates visual line information for each of the facial images captured by the image-capturing part, a calculation part that calculates correction information by using at least two sets of the visual line information being in a predetermined positional relation among a plurality of sets of the visual line information calculated by the detector, and a correction part that corrects the visual line information calculated by the detector, by using the correction information.