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公开(公告)号：US09288510B1
公开(公告)日：2016-03-15
申请号：US14285546
申请日：2014-05-22
Applicant: Google Inc.
Inventor： Lei Yang , Prasanna Meda , Thierry Foucu , Sang-Uok Kum , Hugh Pierre Denman , Steve Benting
IPC: H04N7/173 , H04N21/2343 , H04N19/40 , H04N19/51 , H04N19/124 , H04N19/593 , H04N19/176
CPC classification number: H04N21/234309 , H04N19/124 , H04N19/176 , H04N19/40 , H04N19/513 , H04N19/593 , H04N19/70
Abstract: Adaptive video transcoding based on parallel chunked log analysis is described. The adaptive video transcoding method comprises receiving an intermediate video stream generated from an intermediate transcoding. The method also receives an intermediate transcoding log stream associated with the intermediate video stream. The method partitions the intermediate video stream into a plurality of video chunks, where each video chunk corresponding to a portion of video data of the video stream. The method further generates video chunk statistics for each of the video chunks using the intermediate transcoding log stream and transcoding parameters for each of the video chunks based on the generated video chunk statistics. The method transcodes each of the video chunks to a target format in parallel based on the generated transcoding parameters. The method assembles the transcoded video chunks into a target video stream in the target format.
Abstract translation: 描述了基于并行分块日志分析的自适应视频转码。 自适应视频代码转换方法包括接收从中间代码转换产生的中间视频流。 该方法还接收与中间视频流相关联的中间代码转换日志流。 该方法将中间视频流分割成多个视频块，其中每个视频块对应于视频流的视频数据的一部分。 该方法还使用中间代码转换日志流和基于生成的视频块统计的每个视频块的代码转换参数来生成每个视频块的视频块统计。 该方法基于所生成的代码转换参数将每个视频块转码为目标格式。 该方法将经转码的视频块组装成目标格式的目标视频流。
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2.发明授权Generating and/or modifying motion compensation parameters for video stabilization 有权生成和/或修改视频稳定的运动补偿参数公开(公告)号：US08908102B1
公开(公告)日：2014-12-09
申请号：US14017122
申请日：2013-09-03
Applicant: Google Inc.
Inventor： Andrew Joseph Crawford , Damien Kelly , Anil Kokaram , Hugh Pierre Denman
CPC classification number: H04N5/23267 , G06T7/30 , G06T2207/10016 , H04N5/23254 , H04N5/23296 , H04N5/2628
Abstract: A system for video stabilization is provided. The system includes a media component, a transformation component, an offset component and a zoom component. The media component receives a video sequence including at least a first video frame and a second video frame. The transformation component calculates at least a first motion parameter associated with translational motion for the first video frame and at least a second motion parameter associated with the translational motion for the second video frame. The offset component subtracts an offset value generated as a function of a maximum motion parameter and a minimum motion parameter from the first motion parameter and the second motion parameter to generate a set of modified motion parameters. The zoom component determines a zoom value for the video sequence based at least in part on the set of modified motion parameters.
Abstract translation: 提供了一种用于视频稳定的系统。 系统包括媒体组件，变换组件，偏移组件和缩放组件。 媒体组件接收包括至少第一视频帧和第二视频帧的视频序列。 变换分量至少计算与第一视频帧的平移运动相关联的第一运动参数和与第二视频帧的平移运动相关联的至少第二运动参数。 偏移分量从第一运动参数和第二运动参数减去作为最大运动参数和最小运动参数的函数产生的偏移值，以生成一组修改的运动参数。 缩放组件至少部分地基于修改的运动参数的集合来确定视频序列的缩放值。
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Patent Agency Ranking
公开(公告)号：US10277919B2
公开(公告)日：2019-04-30
申请号：US15077232
申请日：2016-03-22
Applicant: GOOGLE INC.
Inventor： Anil Kokaram , Damien Kelly , Andrew Joseph Crawford , Hugh Pierre Denman
IPC: H04N19/65 , H04N19/80 , H04N19/85 , G06T5/40 , H04N5/14 , H04N19/117 , H04N19/142 , H04N19/179 , H04N19/86 , G06T5/00
Abstract: Described herein are techniques related to noise reduction for image sequences or videos. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope and meaning of the claims. A noise reduction tool includes a motion estimator configured to estimated motion in the video, a noise spectrum estimator configured to estimate noise in the video, a shot detector configured to trigger the noise estimation process, a noise spectrum validator configured to validate the estimated noise spectrum, and a noise reducer to reduce noise in the video using the estimated noise spectrum.
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公开(公告)号：US09510028B2
公开(公告)日：2016-11-29
申请号：US15016035
申请日：2016-02-04
Applicant: Google Inc.
Inventor： Lei Yang , Prasanna Meda , Thierry Foucu , Sang-Uok Kum , Hugh Pierre Denman , Steve Benting
IPC: H04N7/173 , H04N21/2343 , H04N19/40 , H04N19/51 , H04N19/124 , H04N19/593 , H04N19/176 , H04N19/513 , H04N19/70
CPC classification number: H04N21/234309 , H04N19/124 , H04N19/176 , H04N19/40 , H04N19/513 , H04N19/593 , H04N19/70
Abstract: Adaptive video transcoding based on parallel chunked log analysis is described. The adaptive video transcoding method comprises receiving an intermediate video stream generated from an intermediate transcoding. The method also receives an intermediate transcoding log stream associated with the intermediate video stream. The method partitions the intermediate video stream into a plurality of video chunks, where each video chunk corresponding to a portion of video data of the video stream. The method further generates video chunk statistics for each of the video chunks using the intermediate transcoding log stream and transcoding parameters for each of the video chunks based on the generated video chunk statistics. The method transcodes each of the video chunks to a target format in parallel based on the generated transcoding parameters. The method assembles the transcoded video chunks into a target video stream in the target format.
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公开(公告)号：US20160156948A1
公开(公告)日：2016-06-02
申请号：US15016035
申请日：2016-02-04
Applicant: Google Inc.
Inventor： Lei Yang , Prasanna Meda , Thierry Foucu , Sang-Uok Kum , Hugh Pierre Denman , Steve Benting
IPC: H04N21/2343 , H04N19/513 , H04N19/70 , H04N19/593 , H04N19/176 , H04N19/40 , H04N19/124
CPC classification number: H04N21/234309 , H04N19/124 , H04N19/176 , H04N19/40 , H04N19/513 , H04N19/593 , H04N19/70
Abstract: Adaptive video transcoding based on parallel chunked log analysis is described. The adaptive video transcoding method comprises receiving an intermediate video stream generated from an intermediate transcoding. The method also receives an intermediate transcoding log stream associated with the intermediate video stream. The method partitions the intermediate video stream into a plurality of video chunks, where each video chunk corresponding to a portion of video data of the video stream. The method further generates video chunk statistics for each of the video chunks using the intermediate transcoding log stream and transcoding parameters for each of the video chunks based on the generated video chunk statistics. The method transcodes each of the video chunks to a target format in parallel based on the generated transcoding parameters. The method assembles the transcoded video chunks into a target video stream in the target format.
Abstract translation: 描述了基于并行分块日志分析的自适应视频转码。 自适应视频代码转换方法包括接收从中间代码转换产生的中间视频流。 该方法还接收与中间视频流相关联的中间代码转换日志流。 该方法将中间视频流分割成多个视频块，其中每个视频块对应于视频流的视频数据的一部分。 该方法还使用中间代码转换日志流和基于生成的视频块统计的每个视频块的代码转换参数来生成每个视频块的视频块统计。 该方法基于所生成的代码转换参数将每个视频块转码为目标格式。 该方法将经转码的视频块组装成目标格式的目标视频流。
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公开(公告)号：US10313675B1
公开(公告)日：2019-06-04
申请号：US14611084
申请日：2015-01-30
Applicant: GOOGLE INC.
IPC: H04B1/66 , H04N19/147 , H04N19/136
Abstract: A method includes determining whether a rate distortion cost of a compressed video is above a cost threshold, the compressed video being encoded using a first constant rate factor (CRF). Upon determining the quality of a compressed video is above a cost threshold calculating a second CRF based on the first CRF, and encoding a video associated with the compressed video using the second CRF. Upon determining the quality of a compressed video is below a cost threshold encoding the video using the first CRF and a target bitrate.
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7.发明授权Generating and/or modifying motion compensation parameters for video stabilization 有权生成和/或修改视频稳定的运动补偿参数公开(公告)号：US09479700B1
公开(公告)日：2016-10-25
申请号：US14532798
申请日：2014-11-04
Applicant: Google Inc.
Inventor： Andrew Joseph Crawford , Damien Kelly , Anil Kokaram , Hugh Pierre Denman
IPC: H04N5/232
CPC classification number: H04N5/23267 , G06T7/30 , G06T2207/10016 , H04N5/23254 , H04N5/23296 , H04N5/2628
Abstract: A system for video stabilization is provided. The system includes a media component, a transformation component, an offset component and a zoom component. The media component receives a video sequence including at least a first video frame and a second video frame. The transformation component calculates at least a first motion parameter associated with translational motion for the first video frame and at least a second motion parameter associated with the translational motion for the second video frame. The offset component subtracts an offset value generated as a function of a maximum motion parameter and a minimum motion parameter from the first motion parameter and the second motion parameter to generate a set of modified motion parameters. The zoom component determines a zoom value for the video sequence based at least in part on the set of modified motion parameters.
Abstract translation: 提供了一种用于视频稳定的系统。 系统包括媒体组件，变换组件，偏移组件和缩放组件。 媒体组件接收包括至少第一视频帧和第二视频帧的视频序列。 变换分量至少计算与第一视频帧的平移运动相关联的第一运动参数和与第二视频帧的平移运动相关联的至少第二运动参数。 偏移分量从第一运动参数和第二运动参数减去作为最大运动参数和最小运动参数的函数产生的偏移值，以生成一组修改的运动参数。 缩放组件至少部分地基于修改的运动参数的集合来确定视频序列的缩放值。
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