公开(公告)号：US11422568B1

公开(公告)日：2022-08-23

申请号：US16680227

申请日：2019-11-11

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Jim Oommen Thomas ,  Jingjing Zheng ,  Rakesh Ramesh ,  Yuyin Sun ,  Lu Xia ,  Peng Lei ,  Jiajia Luo

IPC: G05D1/02 ,  G05D1/08 ,  G06F21/32 ,  G05D1/00 ,  G06V40/16

Abstract: An autonomous mobile device (AMD) may perform various tasks during operation. Some tasks, such as delivering a message to a particular user, may involve the AMD identifying the particular user. The AMD includes a camera to acquire an image, and image-based authentication techniques are used to determine a user's identity. A user may move within in a physical space, and the space may contain various obstructions which may occlude images. The AMD may move within the space to obtain a vantage point from which an image of the face of the user is obtained which is suitable for image-based authentication. In some situations, the AMD may present an attention signal, such as playing a sound from a speaker or flashing a light, to encourage the user to look at the AMD, providing an image for use in image-based authentication.

公开(公告)号：US11367306B1

公开(公告)日：2022-06-21

申请号：US16909074

申请日：2020-06-23

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Cheng-Hao Kuo ,  Anuja Shantaram Dawane ,  Che-Chun Su ,  Jingjing Zheng ,  Jim Oommen Thomas

IPC: G06V40/16 ,  H04N5/232 ,  G06V10/75 ,  G06V40/20

Abstract: An autonomous mobile device (AMD) or other device may perform various tasks during operation. The AMD includes a camera to acquire an image. Some tasks, such as presenting information on a display screen or a video call, may involve the AMD determining whether a user is engaged with the AMD. The AMD may move a component, such as the camera or the display screen, to provide a best experience for an engaged user. Images from the camera are processed to determine attributes of the user, such as yaw of the face of the user, pitch of the face of the user, distance from the camera, and so forth. Based on the values of these attributes, a user engagement score is determined. The score may be used to select a particular user from many users in the image, or to otherwise facilitate operation of the AMD.