公开(公告)号：WO2014175995A1

公开(公告)日：2014-10-30

申请号：PCT/US2014/032207

申请日：2014-03-28

Applicant: GOOGLE INC

Inventor： KOKARAM, Anil ,  KELLY, Damien ,  CRAWFORD, Andrew Joseph

IPC: G06T3/40 ,  H04N7/01 ,  H04N13/00

CPC classification number: H04N19/577 ,  H04N7/0127 ,  H04N7/014 ,  H04N19/194 ,  H04N19/44 ,  H04N19/52 ,  H04N19/527 ,  H04N19/53 ,  H04N19/553 ,  H04N19/587 ,  H04N19/59 ,  H04N19/597

Abstract: Pull frame interpolation may include identifying a plurality of input video frames, generating a plurality of motion vectors indicating motion from a first frame of the plurality of input video frames to a second frame of the plurality of input video frames, identifying an interpolation point between the first frame and the second frame, generating a plurality of candidate interpolation motion vectors indicating motion from the first frame to the interpolation point and from the second frame to the interpolation point based on the plurality of motion vectors, selecting an interpolation motion vector from the plurality of candidate interpolation motion vectors based on a metric, and generating an interpolated frame at the interpolation point based on the selected interpolation motion vector.

Abstract translation: 拉框插值可以包括识别多个输入视频帧，产生指示从多个输入视频帧的第一帧到多个输入视频帧中的第二帧的运动的多个运动矢量，识别多个输入视频帧中的插值点 第一帧和第二帧，基于多个运动矢量生成指示从第一帧到内插点以及从第二帧到内插点的运动的多个候选插值运动矢量，从多个运动矢量中选择插值运动矢量 基于度量的候选插值运动矢量，并且基于所选择的插值运动矢量在插值点处生成内插帧。

公开(公告)号：WO2017074786A1

公开(公告)日：2017-05-04

申请号：PCT/US2016/057879

申请日：2016-10-20

Applicant: GOOGLE INC.

Inventor： BIRKBECK, Neil Aylon Charles ,  LAM, Ka-Kit ,  KELLY, Damien ,  CRAWFORD, Andrew Joseph ,  KOKARAM, Anil Christopher

IPC: G06F17/30 ,  G06K9/00

CPC classification number: G06K9/00718 ,  G06F17/3079 ,  G06F17/30799 ,  G06K9/00684 ,  G06K9/00744 ,  G06K9/224 ,  G06K9/4604 ,  G06K9/4633 ,  G06K9/52 ,  G06T7/0085 ,  G06T7/136 ,  G06T7/40 ,  G06T2200/08 ,  G06T2207/10016 ,  H04N5/23238 ,  H04N13/139 ,  H04N21/23418

Abstract: Systems and methods are described for identifying the video content as spherical video or non-spherical video in response to determining that frame scores and video scores satisfy a threshold level. For example, a plurality of image frames can be extracted from video content, classified in a dual stage process, and scored according to particular classification and scoring mechanisms.

Abstract translation: 描述了用于响应于确定帧分数和视频分数满足阈值水平而将视频内容标识为球形视频或非球形视频的系统和方法。 例如，可以从视频内容中提取多个图像帧，分类为双阶段处理，并根据特定的分类和评分机制进行评分。

公开(公告)号：WO2014042971A1

公开(公告)日：2014-03-20

申请号：PCT/US2013/058371

申请日：2013-09-06

Applicant: GOOGLE INC.

Inventor： ZHANG, Jiangyang ,  KOKARAM, Anil ,  MUKHERJEE, Debargha ,  CRAWFORD, Andrew Joseph ,  KELLY, Damien

IPC: G11B20/10 ,  G11B27/28 ,  H04N21/43 ,  G06Q10/10

CPC classification number: G11B27/28 ,  G06K9/00765 ,  G06K9/6277 ,  G06K9/6292 ,  G10H1/368 ,  G10L25/06 ,  G10L25/57 ,  G11B27/10

Abstract: Provided are methods for synchronizing multiple video recordings of the same event using audio signals of the recordings. An algorithm is designed to generate candidate time offsets for pairwise matches of video recordings based on audio signals corresponding to the recordings, and combine the candidate time offsets to obtain the most accurate actual time offset between each pair of recordings. Each candidate time offset for each pairwise match of recordings is assigned a confidence measure indicating how likely it is that the particular time offset is correct for the given pair of recordings. The confidence measure assigned to a particular time offset is based on various components and characteristics of the audio signal pair corresponding to the video recordings.

Abstract translation: 提供了使用记录的音频信号同步相同事件的多个视频记录的方法。 一种算法被设计为基于与记录相对应的音频信号来生成视频记录的成对匹配的候选时间偏移，并且组合候选时间偏移以获得每对记录之间最准确的实际时间偏移。 为记录的每个成对匹配的每个候选时间偏移量分配一个置信度量度，指示特定时间偏移对给定的一对记录是否正确的可能性。 分配给特定时间偏移的置信度基于对应于视频记录的音频信号对的各种组件和特性。

公开(公告)号：WO2013155089A1

公开(公告)日：2013-10-17

申请号：PCT/US2013/035807

申请日：2013-04-09

Applicant: GOOGLE INC.

Inventor： KOKARAM, Anil ,  KELLY, Damien ,  CRAWFORD, Andrew Joseph ,  DENMAN, Hugh Pierre

IPC: G06K9/40

CPC classification number: H04N19/65 ,  G06T5/002 ,  G06T5/40 ,  G06T2207/10016 ,  G06T2207/20182 ,  H04N5/145 ,  H04N19/117 ,  H04N19/142 ,  H04N19/179 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86

Abstract: Described herein are techniques related to noise reduction for image sequences or videos. 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.

Abstract translation: 这里描述了与图像序列或视频的降噪有关的技术。 降噪工具包括被配置为估计视频中的运动的运动估计器，被配置为估计视频中的噪声的噪声谱估计器，被配置为触发噪声估计处理的镜头检测器，被配置为验证估计噪声谱 ，以及使用估计的噪声谱减少视频中的噪声的降噪器。