US 12,327,372 B2
Eye gaze detection method, eye gaze detection device, and non-transitory computer readable storage medium
Toshikazu Ohno, Ibaraki (JP)
Assigned to Swallow Incubate Co., Ltd., Ibaraki (JP); and Panasonic Holdings Corporation, Osaka (JP)
Filed by Swallow Incubate Co., Ltd., Ibaraki (JP); and Panasonic Holdings Corporation, Osaka (JP)
Filed on May 11, 2022, as Appl. No. 17/741,632.
Application 17/741,632 is a continuation of application No. PCT/JP2020/004552, filed on Feb. 6, 2020.
Claims priority of application No. 2019-205364 (JP), filed on Nov. 13, 2019.
Prior Publication US 2022/0270287 A1, Aug. 25, 2022
Int. Cl. G06T 7/73 (2017.01); G06V 40/16 (2022.01)
CPC G06T 7/73 (2017.01) [G06V 40/161 (2022.01); G06V 40/171 (2022.01); G06T 2207/30201 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An eye gaze detection method in an eye gaze detection device, the eye gaze detection method comprising:
acquiring image data of a face of a person;
detecting, from the image data of the face, a left eye region including a left eye of the person and a right eye region including a right eye of the person;
detecting, from the image data of the face, a certain site of the face existing on an outer corner of one eye relative to a position of an inner corner of the one eye, wherein the certain site includes an ear region including an ear of the person or a hair region including hair of the person, when only one eye region of the right eye region or the left eye region is detected;
detecting a contour point indicating a point on a contour of the face existing on the inner corner of the one eye relative to a position of the outer corner of the one eye based on the image data of the face and information indicating a position of the one eye;
detecting information indicating an orientation of the face based on a first distance from the position of the one eye to the contour point and a second distance from the position of the one eye to a position of the certain site; and
detecting information indicating an eye gaze of the person based on the information indicating the position of the one eye and the information indicating the orientation of the face.