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公开(公告)号：US20190158733A1
公开(公告)日：2019-05-23
申请号：US16143268
申请日：2018-09-26
Applicant: Polycom, Inc.
Inventor： Jinwei Feng , Peter Chu
Abstract: A system for ensuring that the best available view of a person's face is included in a video stream when the person's face is being captured by multiple cameras at multiple angles at a first endpoint. The system uses one or more microphone arrays to capture direct-reverberant ratio information corresponding to the views, and determines which view most closely matches a view of the person looking directly at the camera, thereby improving the experience for viewers at a second endpoint.
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公开(公告)号：US10939045B2
公开(公告)日：2021-03-02
申请号：US16740180
申请日：2020-01-10
Applicant: Polycom, Inc.
Inventor： Xiangdong Wang , Yibo Liu , Jinwei Feng , Edmund Thompson , Peter Chu
Abstract: A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, participants are detected and localized by establishing a static perimeter around a participant in which no motion is detected. Thereafter, if no motion is detected in the perimeter, any personage objects such as head, face, or shoulders which are detected in the region bounded by the perimeter are determined to correspond to the participant.
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公开(公告)号：US10574899B2
公开(公告)日：2020-02-25
申请号：US16227815
申请日：2018-12-20
Applicant: Polycom, Inc.
Inventor： Xiangdong Wang , Yibo Liu , Jinwei Feng , Edmund Thompson , Peter Chu
Abstract: A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, participants are detected and localized by establishing a static perimeter around a participant in which no motion is detected. Thereafter, if no motion is detected in the perimeter, any personage objects such as head, face, or shoulders which are detected in the region bounded by the perimeter are determined to correspond to the participant.
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公开(公告)号：US08989815B2
公开(公告)日：2015-03-24
申请号：US13684526
申请日：2012-11-24
Applicant: Polycom, Inc.
Inventor： Kwan K. Truong , Peter Chu , Steve Potts , Erwin Goesnar
CPC classification number: H04M9/085
Abstract: Noise suppression systems and methods suppress far field noise in a microphone signal. A telephony system includes a main microphone and a reference microphone. In one example, the main microphone and the reference microphone can be located in the same device. In another example, the main microphone and the reference microphone can be located in two separate devices. A DSP can use the reference microphone signal to carry out suppression of far field noise in the main microphone signal. In one approach the DSP can determine an estimate of far field noise in the main microphone signal based on a noise estimate of the reference microphone signal and a reference and main microphone coupling estimate, and then subtract the far field noise estimate from the main microphone signal. Alternatively, the DSP can suppress the main microphone signal if it determines that a local talker is inactive.
Abstract translation: 噪声抑制系统和方法抑制麦克风信号中的远场噪声。 电话系统包括主麦克风和参考麦克风。 在一个示例中，主麦克风和参考麦克风可以位于同一设备中。 在另一示例中，主麦克风和参考麦克风可以位于两个单独的设备中。 DSP可以使用参考麦克风信号来对主麦克风信号中的远场噪声进行抑制。 在一种方法中，DSP可以基于参考麦克风信号和参考和主麦克风耦合估计的噪声估计来确定主麦克风信号中的远场噪声的估计，然后从主麦克风信号中减去远场噪声估计 。 或者，如果确定本地讲话者不活动，则DSP可以抑制主麦克风信号。
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公开(公告)号：US20190174068A1
公开(公告)日：2019-06-06
申请号：US16227815
申请日：2018-12-20
Applicant: Polycom, Inc.
Inventor： Xiangdong Wang , Yibo Liu , Jinwei Feng , Edmund Thompson , Peter Chu
CPC classification number: H04N5/23296 , G06K9/00234 , G06K9/00255 , G06K9/00369 , G06T7/20 , G06T2207/10016 , G06T2207/30201 , H04N5/2258 , H04N5/23219 , H04N5/23254 , H04N5/23299 , H04N5/247 , H04N7/147 , H04N7/15 , H04N7/152
Abstract: A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, participants are detected and localized by establishing a static perimeter around a participant in which no motion is detected. Thereafter, if no motion is detected in the perimeter, any personage objects such as head, face, or shoulders which are detected in the region bounded by the perimeter are determined to correspond to the participant.
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Patent Agency Ranking
公开(公告)号：US20190007623A1
公开(公告)日：2019-01-03
申请号：US15640371
申请日：2017-06-30
Applicant: Polycom, Inc.
Inventor： Xiangdong Wang , Yibo Liu , Jinwei Feng , Edmund Thompson , Peter Chu
Abstract: A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, participants are detected and localized by establishing a static perimeter around a participant in which no motion is detected. Thereafter, if no motion is detected in the perimeter, any personage objects such as head, face, or shoulders which are detected in the region bounded by the perimeter are determined to correspond to the participant.
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公开(公告)号：US09392221B2
公开(公告)日：2016-07-12
申请号：US13786260
申请日：2013-03-05
Applicant: Polycom, Inc.
Inventor： Jinwei Feng , Peter Chu , Wayne Dunlap , Jonathan Gallmeier
Abstract: A videoconferencing apparatus automatically tracks speakers in a room and dynamically switches between a controlled, people-view camera and a fixed, room-view camera. When no one is speaking, the apparatus shows the room view to the far-end. When there is a dominant speaker in the room, the apparatus directs the people-view camera at the dominant speaker and switches from the room-view camera to the people-view camera. When there is a new speaker in the room, the apparatus switches to the room-view camera first, directs the people-view camera at the new speaker, and then switches to the people-view camera directed at the new speaker. When there are two near-end speakers engaged in a conversation, the apparatus tracks and zooms-in the people-view camera so that both speakers are in view.
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公开(公告)号：US20140148224A1
公开(公告)日：2014-05-29
申请号：US13684526
申请日：2012-11-24
Applicant: Polycom, Inc.
Inventor： Kwan K. Truong , Peter Chu , Steve Potts , Erwin Goesnar
IPC: H04M9/08
CPC classification number: H04M9/085
Abstract: Noise suppression systems and methods suppress far field noise in a microphone signal. A telephony system includes a main microphone and a reference microphone. In one example, the main microphone and the reference microphone can be located in the same device. In another example, the main microphone and the reference microphone can be located in two separate devices. A DSP can use the reference microphone signal to carry out suppression of far field noise in the main microphone signal. In one approach the DSP can determine an estimate of far field noise in the main microphone signal based on a noise estimate of the reference microphone signal and a reference and main microphone coupling estimate, and then subtract the far field noise estimate from the main microphone signal. Alternatively, the DSP can suppress the main microphone signal if it determines that a local talker is inactive.
Abstract translation: 噪声抑制系统和方法抑制麦克风信号中的远场噪声。 电话系统包括主麦克风和参考麦克风。 在一个示例中，主麦克风和参考麦克风可以位于同一设备中。 在另一示例中，主麦克风和参考麦克风可以位于两个单独的设备中。 DSP可以使用参考麦克风信号来对主麦克风信号中的远场噪声进行抑制。 在一种方法中，DSP可以基于参考麦克风信号和参考和主麦克风耦合估计的噪声估计来确定主麦克风信号中的远场噪声的估计，然后从主麦克风信号中减去远场噪声估计 。 或者，如果确定本地讲话者不活动，则DSP可以抑制主麦克风信号。
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公开(公告)号：US10187579B1
公开(公告)日：2019-01-22
申请号：US15640371
申请日：2017-06-30
Applicant: Polycom, Inc.
Inventor： Xiangdong Wang , Yibo Liu , Jinwei Feng , Edmund Thompson , Peter Chu
Abstract: A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, participants are detected and localized by establishing a static perimeter around a participant in which no motion is detected. Thereafter, if no motion is detected in the perimeter, any personage objects such as head, face, or shoulders which are detected in the region bounded by the perimeter are determined to correspond to the participant.
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公开(公告)号：US20130271559A1
公开(公告)日：2013-10-17
申请号：US13786260
申请日：2013-03-05
Applicant: Polycom, Inc.
Inventor： Jinwei Feng , Peter Chu , Wayne Dunlap , Jonathan Gallmeier
IPC: H04N7/15
Abstract: A videoconferencing apparatus automatically tracks speakers in a room and dynamically switches between a controlled, people-view camera and a fixed, room-view camera. When no one is speaking, the apparatus shows the room view to the far-end. When there is a dominant speaker in the room, the apparatus directs the people-view camera at the dominant speaker and switches from the room-view camera to the people-view camera. When there is a new speaker in the room, the apparatus switches to the room-view camera first, directs the people-view camera at the new speaker, and then switches to the people-view camera directed at the new speaker. When there are two near-end speakers engaged in a conversation, the apparatus tracks and zooms-in the people-view camera so that both speakers are in view.
Abstract translation: 视频会议设备自动跟踪房间中的扬声器，并在受控的人民摄像机和固定的室内摄像机之间动态切换。 当没有人在说话的时候，设备会显示到远端的房间视图。 当房间中有主导扬声器时，设备将人物摄像机引导到主扬声器，并从室内摄像机切换到人民摄像机。 当房间里有一个新的扬声器时，设备首先切换到室内摄像机，将人物摄像机引导到新的扬声器，然后切换到指向新扬声器的人物摄像机。 当有两个近端扬声器进行通话时，该设备将跟踪和放大人民摄像机，以便两个扬声器都在视野中。
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