公开(公告)号：US09881221B2

公开(公告)日：2018-01-30

申请号：US14274315

申请日：2014-05-09

Applicant: Xerox Corporation

Inventor： Raja Bala ,  Edgar Bernal ,  Aaron Burry ,  Peter Paul ,  David Chuang

IPC: H04N7/18 ,  G06K9/00 ,  G06K9/62

CPC classification number: G06K9/00845 ,  G06K9/00281 ,  G06K9/6277

Abstract: Methods and systems for continuously monitoring the gaze direction of a driver of a vehicle over time. Video is received, which is captured by a camera associated with, for example, a mobile device within a vehicle, the camera and/or mobile device mounted facing the driver of the vehicle. Frames can then be extracted from the video. A facial region can then be detected, which corresponds to the face of the driver within the extracted frames. Features descriptors can then be computed from the facial region. A gaze classifier derived from the vehicle, the driver, and the camera can then be applied, wherein the gaze classifier receives the feature descriptors as inputs and outputs at least one label corresponding to one or more predefined finite number of gaze classes to identify the gaze direction of the driver of the vehicle.

公开(公告)号：US20150116493A1

公开(公告)日：2015-04-30

申请号：US14274315

申请日：2014-05-09

Applicant: Xerox Corporation

Inventor： Raja Bala ,  Edgar Bernal ,  Aaron Burry ,  Peter Paul ,  David Chuang

IPC: G06K9/00 ,  B60R1/00

CPC classification number: G06K9/00845 ,  G06K9/00281 ,  G06K9/6277

Abstract: Methods and systems for continuously monitoring the gaze direction of a driver of a vehicle over time. Video is received, which is captured by a camera associated with, for example, a mobile device within a vehicle, the camera and/or mobile device mounted facing the driver of the vehicle. Frames can then be extracted from the video. A facial region can then be detected, which corresponds to the face of the driver within the extracted frames. Features descriptors can then be computed from the facial region. A gaze classifier derived from the vehicle, the driver, and the camera can then be applied, wherein the gaze classifier receives the feature descriptors as inputs and outputs at least one label corresponding to one or more predefined finite number of gaze classes to identify the gaze direction of the driver of the vehicle.

Abstract translation: 随着时间的推移，持续监控车辆驾驶员凝视方向的方法和系统。 接收到视频，其由与例如车辆内的移动设备相关联的摄像机捕获，相机和/或移动设备面向车辆驾驶员安装。 然后可以从视频中提取帧。 然后可以检测到面部区域，其对应于所提取的帧内的驾驶员的脸部。 然后可以从面部区域计算特征描述符。 然后可以应用从车辆，驾驶员和照相机得到的注视分类器，其中注视分类器接收特征描述符作为输入，并且输出与一个或多个预定义的有限数量的注视类别对应的至少一个标签，以识别注视 车辆司机的方向。