公开(公告)号：US11438549B2

公开(公告)日：2022-09-06

申请号：US17294568

申请日：2018-11-22

Applicant: Polycom, Inc.

Inventor： Tianran Wang ,  Wenxue He ,  Lidan Qin ,  Hai Xu

IPC: H04N7/15 ,  G06V40/10 ,  G06T7/20 ,  H04L12/18 ,  H04L65/1083

Abstract: A videoconferencing endpoint is described that uses a combination of face detection, motion detection, and upper body detection for selecting participants of a videoconference for group framing. Motion detection is used to remove fake faces as well as to detect motion in regions around detected faces during postprocessing. Upper body detection is used in conjunction with the motion detection in postprocessing to allow saving faces that have been initially detected by face detection for group framing even if the participant has turned away from the camera, allowing the endpoint to keep tracking the participants region better than would be possible based only on an unstable result coming from face detection.

公开(公告)号：US20220005162A1

公开(公告)日：2022-01-06

申请号：US17294565

申请日：2018-11-23

Applicant: Polycom, Inc.

Inventor： Tianran Wang ,  Hailin Song ,  Wenxue He

IPC: G06T5/00 ,  G06T7/11 ,  G06T3/00

Abstract: A method includes receiving, at a conference endpoint, video captured using a wide angle lens. The method further includes selecting a view region in a frame of the video. The method further includes selectively applying, based on a size of the view region, deformation correction or distortion correction to the view region to generate a corrected video frame. The method further includes transmitting the corrected video frame to a remote endpoint.

公开(公告)号：US20220006974A1

公开(公告)日：2022-01-06

申请号：US17294568

申请日：2018-11-22

Applicant: Polycom, Inc.

Inventor： Tianran Wang ,  Wenxue He ,  Lidan Qin ,  Hai Xu

IPC: H04N7/15 ,  H04L29/06 ,  H04L12/18 ,  G06T7/20 ,  G06K9/00

Abstract: A videoconferencing endpoint is described that uses a combination of face detection, motion detection, and upper body detection for selecting participants of a videoconference for group framing. Motion detection is used to remove fake faces as well as to detect motion in regions around detected faces during postprocessing. Upper body detection is used in conjunction with the motion detection in postprocessing to allow saving faces that have been initially detected by face detection for group framing even if the participant has turned away from the camera, allowing the endpoint to keep tracking the participants region better than would be possible based only on an unstable result coming from face detection.