公开(公告)号：US09060095B2

公开(公告)日：2015-06-16

申请号：US13802241

申请日：2013-03-13

Applicant: GOOGLE INC.

Inventor： Frank Petterson ,  Janahan Vivekanandan ,  Thor Carpenter

IPC: H04N7/14 ,  H04N7/15 ,  G06K9/00

CPC classification number: H04N7/157 ,  G06K9/00228

Abstract: Implementations generally relate to modifying an appearance of a participant during a video conference. In some implementations, a method includes obtaining at least one frame from a media stream, where the at least one frame includes a first face, and where the first face is an image of a face associated with a user. The method also includes determining a plurality of coordinates within the at least one frame. The method also includes obtaining at least one media content item. The method also includes adding the at least one media content item to the at least one frame based on the plurality of coordinates.

Abstract translation: 实现通常涉及在视频会议期间修改参与者的外观。 在一些实施方式中，一种方法包括从媒体流获得至少一个帧，其中所述至少一个帧包括第一面，并且其中所述第一面是与用户相关联的面部的图像。 该方法还包括确定至少一个帧内的多个坐标。 该方法还包括获得至少一个媒体内容项目。 该方法还包括基于多个坐标将至少一个媒体内容项添加到至少一个帧。

公开(公告)号：US09319629B1

公开(公告)日：2016-04-19

申请号：US14480551

申请日：2014-09-08

Applicant: Google Inc.

Inventor： Janahan Vivekanandan ,  Ujjwal Singh ,  Param Reddappagari ,  Zhengping Zuo

IPC: H04N7/14 ,  H04N7/15

CPC classification number: H04N7/152

Abstract: A system for endpoint device-specific stream control for multimedia conferencing may include one or more processors and memory. The one or more processors may perform steps of providing a hosted multimedia conference to participant devices, determining whether each participant device is capable of providing a video stream transmission and providing, to each participant device, video stream controls that provide for controlling video streams of exclusively the other participant devices that are determined to be capable of providing video stream transmissions. The steps may further include receiving a selection of a first video stream control corresponding to a first participant device from second and third participant devices, receiving a video stream from the first participant device, and providing the video stream to the second and third participant devices based at least in part on the received selections of the first video stream control by the second and third participant devices.

Abstract translation: 用于多媒体会议的用于端点设备专用流控制的系统可以包括一个或多个处理器和存储器。 一个或多个处理器可以执行向参与者设备提供托管的多媒体会议的步骤，确定每个参与者设备是否能够提供视频流传输并且向每个参与者设备提供视频流控制，视频流控制提供专门控制视频流 确定能够提供视频流传输的其他参与者设备。 这些步骤还可以包括从第二和第三参与者设备接收对应于第一参与者设备的第一视频流控制的选择，从第一参与者设备接收视频流，以及将视频流提供给第二和第三参与者设备 至少部分地基于由第二和第三参与者设备接收到的第一视频流控制的选择。

公开(公告)号：US09117112B2

公开(公告)日：2015-08-25

申请号：US14485186

申请日：2014-09-12

Applicant: Google Inc.

Inventor： Thor Carpenter ,  Frank Petterson ,  Janahan Vivekanandan

IPC: G06K9/00 ,  G06K9/48 ,  G06K9/40 ,  G06T7/00

CPC classification number: G06K9/00335 ,  G06T7/11 ,  G06T7/143 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20016

Abstract: Methods and systems are provided allowing for background identification and gesture recognition in video images. A computer-implemented image processing method includes: receiving, using at least one processing circuit, a plurality of image frames of a video; constructing, using at feast one processing circuit, a plurality of statistical models of the plurality of image frames at a plurality of pixel granularity levels; constructing, using at least one processing circuit, a plurality of probabilistic models of an input image frame at a plurality of channel granularity levels based on the plurality of statistical models; merging at least some of the plurality of probabilistic models based on a weighted average to form a single probability image; determining background pixels, based on a probability threshold value, from the single probability image; and determining whether the plurality of image frames, when examined in a particular sequence, conveys a gesture by the object.

公开(公告)号：US09386274B2

公开(公告)日：2016-07-05

申请号：US14455869

申请日：2014-08-08

Applicant: Google Inc.

Inventor： Janahan Vivekanandan ,  Param Reddappagari ,  Zhengping Zuo

IPC: H04N7/15 ,  H04M3/56 ,  H04N7/14 ,  H04L29/06 ,  H04L12/18

CPC classification number: H04N7/15 ,  H04L12/1822 ,  H04L65/1069 ,  H04L65/1086 ,  H04L65/1093 ,  H04L65/4038 ,  H04L65/4046 ,  H04L65/605 ,  H04M3/567 ,  H04N7/14 ,  H04N7/147

Abstract: A system for providing a trusted peer-based information verification system may include one or more processors and a memory. The one or more processors may provide a multimedia conference to participant devices, and may receive a request to transfer a session of the multimedia conference of a participant device that is characterized by a first multimedia conference capability. The one or more processors may provide a list of target devices associated with the participant device to the participant device, and may receive an indication of a target device from the participant device. The one or more processors may transfer the session of the multimedia conference from the participant device to the target device, wherein the target device is characterized by a second multimedia conference capability that is different than the first multimedia conference capability of the participant device.

Abstract translation: 用于提供可信赖的基于对等的信息验证系统的系统可以包括一个或多个处理器和存储器。 一个或多个处理器可以向参与者设备提供多媒体会议，并且可以接收传送由第一多媒体会议能力表征的参与者设备的多媒体会议的会话的请求。 一个或多个处理器可以向参与者设备提供与参与者设备相关联的目标设备的列表，并且可以从参与者设备接收目标设备的指示。 一个或多个处理器可以将多媒体会议的会话从参与者设备传送到目标设备，其中目标设备的特征在于与参与者设备的第一多媒体会议能力不同的第二多媒体会议能力。

公开(公告)号：US20150003727A1

公开(公告)日：2015-01-01

申请号：US14485186

申请日：2014-09-12

Applicant: Google Inc.

Inventor： Thor Carpenter ,  Frank Petterson ,  Janahan Vivekanandan

IPC: G06K9/00 ,  G06T7/00

CPC classification number: G06K9/00335 ,  G06T7/11 ,  G06T7/143 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20016

Abstract: Methods and systems are provided allowing for background identification and gesture recognition in video images. A computer-implemented image processing method includes: receiving, using at least one processing circuit, a plurality of image frames of a video; constructing, using at feast one processing circuit, a plurality of statistical models of the plurality of image frames at a plurality of pixel granularity levels; constructing, using at least one processing circuit, a plurality of probabilistic models of an input image frame at a plurality of channel granularity levels based on the plurality of statistical models; merging at least some of the plurality of probabilistic models based on a weighted average to form a single probability image; determining background pixels, based on a probability threshold value, from the single probability image; and determining whether the plurality of image frames, when examined in a particular sequence, conveys a gesture by the object.

Abstract translation: 提供了允许在视频图像中进行背景识别和手势识别的方法和系统。 计算机实现的图像处理方法包括：使用至少一个处理电路接收视频的多个图像帧; 在多个像素粒度级别构建，使用一个处理电路中的多个图像帧的多个统计模型; 基于所述多个统计模型，构建使用至少一个处理电路多个信道粒度级的输入图像帧的概率模型; 基于加权平均来合并多个概率模型中的至少一些以形成单个概率图像; 基于概率阈值从单个概率图像确定背景像素; 以及当以特定顺序检查时，确定所述多个图像帧是否由所述对象传送手势。