公开(公告)号：US09769357B1

公开(公告)日：2017-09-19

申请号：US14721809

申请日：2015-05-26

Applicant: Google Inc.

Inventor： Chen Wu ,  Sang-Uok Kum ,  Thierry Foucu

IPC: H04N3/22 ,  H04N19/40 ,  G06T7/00 ,  G06K9/46 ,  G11B27/031

CPC classification number: H04N3/22 ,  G06K9/4652 ,  G06T7/0002 ,  G06T7/0081 ,  G06T7/12 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20132 ,  G06T2207/30168 ,  G11B27/031 ,  H04N17/004 ,  H04N19/40

Abstract: Systems and methods for border detection on videos are disclosed herein. The system can include a refinement component that updates a variable as a function of a change in line number, wherein the change in line number is ascertained in response to a change in luminance values and/or chroma values associated with a border and a video area included in a frame associated with an original video. Further, the system also includes a trimming component that, as a function of the variable, crops the border from the frame that includes the video area of the resized original video.

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。

公开(公告)号：US09854020B1

公开(公告)日：2017-12-26

申请号：US14622292

申请日：2015-02-13

Applicant: Google Inc.

Inventor： Sang-Uok Kum ,  Sam John ,  Thierry Foucu ,  Lei Yang ,  Alexander Jay Converse ,  Steve Benting

IPC: H04N7/167 ,  H04N7/12 ,  H04L29/06 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/2385 ,  H04N21/2662 ,  H04N21/845

CPC classification number: H04L65/604 ,  H04L65/4076 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/602 ,  H04L65/80 ,  H04N7/01 ,  H04N21/23418 ,  H04N21/23439 ,  H04N21/2385 ,  H04N21/2662 ,  H04N21/8456

Abstract: A plurality of videos associated with a plurality of video resolutions may be received. A minimum bitrate may be identified for each of the video resolutions based on a first bitrate point associated with the videos where a quality of the videos at a first video resolution that is upscaled to a second video resolution is better than a quality of the videos at the second video resolution at bitrates below the first bitrate point. Furthermore, a maximum bitrate may be identified for each of the video resolutions based on a second bitrate point where the rate of change of the quality of the videos is below a threshold value. The identified minimum bitrates and the maximum bitrates may be assigned to the video resolutions.

公开(公告)号：US09813706B1

公开(公告)日：2017-11-07

申请号：US14093939

申请日：2013-12-02

Applicant: Google Inc.

Inventor： Yao-Chung Lin ,  Sam John ,  Thierry Foucu ,  Sasi Inguva

IPC: H04N7/12 ,  H04N11/04 ,  H04N11/02 ,  H04N7/32 ,  H04N7/26 ,  H04N19/87 ,  H04N19/40 ,  H04N19/51

CPC classification number: H04N19/134 ,  H04N19/00472 ,  H04N19/00587 ,  H04N19/00921 ,  H04N19/142 ,  H04N19/40 ,  H04N19/87

Abstract: A system to facilitate analyzing and/or processing video content using encoding logs is provided. The system includes a first analysis component, a second analysis component and a transcoding component. The first analysis component determines a first set of shot-change locations associated with a cut transition in a video sequence based on an encoding log associated with at least one previously encoded video frame. The second analysis component determines a second set of shot-change locations associated with a fading transition in the video sequence based on the encoding log associated with the at least one previously encoded video frame. The transcoding component processes the video sequence based on at least a portion of the first set of shot-change locations and the second set of shot-change locations.

公开(公告)号：US09843656B2

公开(公告)日：2017-12-12

申请号：US14971997

申请日：2015-12-16

Applicant: GOOGLE INC.

Inventor： Krishnan Eswaran ,  Thierry Foucu ,  Jie Sun ,  Krishna Kumar Gadepalli ,  Vijnan Shastri

IPC: H04L29/14 ,  H04L29/06 ,  H04N21/231 ,  H04N21/2343 ,  H04N21/845 ,  H04L29/08 ,  G06F15/16

CPC classification number: H04L69/40 ,  H04L29/06523 ,  H04L65/4015 ,  H04L65/602 ,  H04L65/607 ,  H04L67/2804 ,  H04N21/23106 ,  H04N21/2343 ,  H04N21/234309 ,  H04N21/8456

Abstract: A system and method for a live streaming platform that can redundantly process input streams in parallel ingestion pipelines is disclosed herein. Ingested input streams in the parallel pipelines can be segmented using a segmentation function that creates identical segments in each of the streams in the pipelines. If errors occur, or there are disruptions in one or more of the input streams or pipelines, the live streaming platform can ensure that segments are identifiable and different parts of the pipelines can join a main stream at different points in time without disruption.

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.

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。

公开(公告)号：US20150189222A1

公开(公告)日：2015-07-02

申请号：US14144331

申请日：2013-12-30

Applicant: Google Inc.

Inventor： Sam John ,  Sang-Uok Kum ,  Steve Benting ,  Thierry Foucu ,  Yao-Chung Lin

IPC: H04N5/91

CPC classification number: H04N5/91 ,  H04N19/142 ,  H04N19/179 ,  H04N19/40 ,  H04N19/436 ,  H04N21/234309 ,  H04N21/44008 ,  H04N21/8456

Abstract: A system and method are disclosed for transcoding a video clip. In one implementation, a computer system determines N frames at which to divide a video clip into N+1 consecutive chunks, where N is a positive integer, and where the frames are determined based on the image content of the video clip, a minimum chunk size, and a maximum chunk size. Each of the N+1 chunks is provided to a respective processor for transcoding, and a transcoded video clip is generated from the transcoded N+1 chunks.

Abstract translation: 公开了用于对视频剪辑进行代码转换的系统和方法。 在一个实现中，计算机系统确定将帧视频剪辑划分成N + 1个连续块的N个帧，其中N是正整数，并且其中基于视频剪辑的图像内容来确定帧，最小块 大小和最大块大小。 将N + 1个块中的每一个提供给相应的处理器进行代码转换，并从代码转换的N + 1块生成代码转换的视频片段。