公开(公告)号：US09864430B2

公开(公告)日：2018-01-09

申请号：US14593955

申请日：2015-01-09

Applicant: Microsoft Technology Licensing, LLC

Inventor： Dijia Wu ,  Michael J. Conrad ,  Tim Burrell ,  Xu Miao ,  Zicheng Liu ,  Qin Cai ,  Zhengyou Zhang

IPC: G06K9/00 ,  G06F3/01 ,  G06F3/03 ,  G06F3/038

CPC classification number: G06F3/013 ,  G06F3/0304 ,  G06F3/038 ,  G06K9/0061

Abstract: Examples are disclosed herein that are related to gaze tracking via image data. One example provides, on a gaze tracking system comprising an image sensor, a method of determining a gaze direction, the method comprising acquiring image data via the image sensor, detecting in the image data facial features of a human subject, determining an eye rotation center based upon the facial features using a calibrated face model, determining an estimated position of a center of a lens of an eye from the image data, determining an optical axis based upon the eye rotation center and the estimated position of the center of the lens, determining a visual axis by applying an adjustment to the optical axis, determining the gaze direction based upon the visual axis, and providing an output based upon the gaze direction.

公开(公告)号：US20160202756A1

公开(公告)日：2016-07-14

申请号：US14593955

申请日：2015-01-09

Applicant: Microsoft Technology Licensing, LLC

Inventor： Dijia Wu ,  Michael J. Conrad ,  Tim Burrell ,  Xu Miao ,  Zicheng Liu ,  Qin Cai ,  Zhengyou Zhang

IPC: G06F3/01 ,  G06K9/62 ,  H04N5/33 ,  G06K9/00

CPC classification number: G06F3/013 ,  G06F3/0304 ,  G06F3/038 ,  G06K9/0061

Abstract: Examples are disclosed herein that are related to gaze tracking via image data. One example provides, on a gaze tracking system comprising an image sensor, a method of determining a gaze direction, the method comprising acquiring image data via the image sensor, detecting in the image data facial features of a human subject, determining an eye rotation center based upon the facial features using a calibrated face model, determining an estimated position of a center of a lens of an eye from the image data, determining an optical axis based upon the eye rotation center and the estimated position of the center of the lens, determining a visual axis by applying an adjustment to the optical axis, determining the gaze direction based upon the visual axis, and providing an output based upon the gaze direction.

Abstract translation: 本文公开了与经由图像数据的凝视跟踪有关的示例。 一个示例在包括图像传感器的注视跟踪系统，确定注视方向的方法中提供，该方法包括经由图像传感器获取图像数据，在图像数据中检测人类对象的面部特征，确定眼睛旋转中心 基于使用校准面部模型的面部特征，根据图像数据确定眼睛的眼睛的中心的估计位置，基于眼睛旋转中心和眼镜的中心的估计位置来确定光轴， 通过对光轴施加调整来确定视轴，基于视轴确定注视方向，以及基于注视方向提供输出。