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1. 发明授权

US09549183B2 Method and device for estimating video quality on bitstream level 有权
标题翻译：用于估计比特流级别的视频质量的方法和装置
公开(公告)号：US09549183B2
公开(公告)日：2017-01-17
申请号：US14116342
申请日：2011-05-12
申请人： Ning Liao , Xiao Dong Gu , Zhibo Chen , Kai Xie
发明人： Ning Liao , Xiao Dong Gu , Zhibo Chen , Kai Xie
IPC分类号： H04N19/107 , H04N19/89 , H04N19/513 , H04N19/154 , H04N19/895
CPC分类号： H04N19/513 , H04N19/107 , H04N19/154 , H04N19/895
摘要： A method for estimating video quality on bit-stream level, wherein the video quality refers to a video after error concealment and the method is performed on bit-stream level before said error concealment, comprises extracting and/or calculating a plurality of global condition features from a video bit-stream, extracting and/or calculating a plurality of local effectiveness features at least for a lost MB, calculating a numeric error concealment effectiveness level for each (or at least for each lost) MB by emulating an error concealment method that is used in said error concealment, and providing the calculated error concealment effectiveness level as an estimated visible artifacts level of video quality.
摘要翻译：一种用于估计比特流级别的视频质量的方法，其中所述视频质量是指在错误隐藏之后的视频，并且所述方法在所述错误隐藏之前的比特流级别上执行，包括提取和/或计算多个全局条件特征至少对于丢失MB提取和/或计算多个局部有效特征，通过模拟错误隐藏方法（或至少对于每个丢失的）MB来计算数字错误隐藏有效性级别用于所述错误隐藏，并将计算出的错误隐藏有效性级别提供为视频质量的估计可见伪像级别。

2. 发明授权

US09202269B2 User terminal device, server device, system and method for assessing quality of media data 有权
标题翻译：用户终端设备，服务器设备，评估媒体数据质量的系统和方法
公开(公告)号：US09202269B2
公开(公告)日：2015-12-01
申请号：US14127325
申请日：2011-06-21
申请人： Kai Xie , Xiao Dong Gu , Zhibo Chen
发明人： Kai Xie , Xiao Dong Gu , Zhibo Chen
IPC分类号： G06K9/62 , G06T7/00 , H04N17/00 , G06K9/46 , H04N21/234 , H04N21/25 , H04N21/475 , H04N21/658 , H04L12/24 , G06Q30/02
CPC分类号： G06T7/0002 , G06K9/46 , G06Q30/0278 , H04L41/5067 , H04N17/004 , H04N21/23418 , H04N21/251 , H04N21/475 , H04N21/6582
摘要： A user terminal device, a server device, a system and a method for assessing quality of media data are described. The user terminal device is used for extracting artifact features from the media data and for communicating the features to the server device which is then used for determining a quality score using the artifacts and an artifact/quality score database accessible by the server device. The score, transmitted to the user terminal device, is presented to a user from which a subjective quality score and a request for re-determination are received which the user terminal device communicates to the server device. This in turn is used for re-determining the quality score and for transmitting back the re-determined quality score wherein the quality score is re-determined using the received artifacts, the received subjective quality score and the artifact/quality score database.
摘要翻译：描述用于评估媒体数据质量的用户终端设备，服务器设备，系统和方法。用户终端设备用于从媒体数据中提取伪像特征，并将特征传送到服务器设备，然后将服务器设备用于使用伪像和由服务器设备访问的伪影/质量得分数据来确定质量得分。发送给用户终端设备的分数被呈现给用户，用户终端设备从服务器设备接收到主观质量得分和重新确定请求。这又用于重新确定质量得分并用于发送回重新确定的质量得分，其中使用接收到的人造物，接收到的主观质量得分和人工/质量得分数据库重新确定质量得分。

3. 发明申请

US20140140612A1 USER TERMINAL DEVICE, SERVER DEVICE, SYSTEM AND METHOD FOR ASSESSING QUALITY OF MEDIA DATA 有权
标题翻译：用户终端设备，服务器设备，用于评估媒体数据质量的系统和方法
公开(公告)号：US20140140612A1
公开(公告)日：2014-05-22
申请号：US14127325
申请日：2011-06-21
申请人： Kai Xie , Xiao Dong Gu , Zhibo Chen
发明人： Kai Xie , Xiao Dong Gu , Zhibo Chen
IPC分类号： G06T7/00 , G06K9/46
CPC分类号： G06T7/0002 , G06K9/46 , G06Q30/0278 , H04L41/5067 , H04N17/004 , H04N21/23418 , H04N21/251 , H04N21/475 , H04N21/6582
摘要： A user terminal device, a server device, a system and a method for assessing quality of media data are described. The user terminal device is used for extracting artefact features from the media data and for communicating the features to the server device which is then used for determining a quality score using the artefacts and an artefact/quality score database accessible by the server device. The score, transmitted to the user terminal device, is presented to a user from which a subjective quality score and a request for re-determination are received which the user terminal device communicates to the server device. This in turn is used for re-determining the quality score and for transmitting back the re-determined quality score wherein the quality score is re-determined using the received artefacts, the received subjective quality score and the artefact/quality score database.
摘要翻译：描述用于评估媒体数据质量的用户终端设备，服务器设备，系统和方法。用户终端设备用于从媒体数据中提取伪像特征，并用于将特征传送到服务器设备，然后使用该装置来确定质量得分以及由服务器设备访问的伪影/质量得分数据库。发送给用户终端设备的分数被呈现给用户，用户终端设备从服务器设备接收到主观质量得分和重新确定请求。这反过来用于重新确定质量得分并用于发送回重新确定的质量得分，其中使用所接收的伪影，接收到的主观质量得分和伪影/质量得分数据库重新确定质量得分。

4. 发明授权

US10110893B2 Method and device for calculating distortion of a video being affected by compression artifacts and channel artifacts 有权
公开(公告)号：US10110893B2
公开(公告)日：2018-10-23
申请号：US14343047
申请日：2011-09-09
申请人： Xiao Dong Gu , Fan Zhang , Zhibo Chen
发明人： Xiao Dong Gu , Fan Zhang , Zhibo Chen
IPC分类号： H04N19/00 , H04N19/86 , H04N19/154
摘要： In video quality control and estimation, the joint evaluation of compression artifacts and channel artifacts is a problem. The invention considers the joint perception of both a compression artifact level Dm(V) and a channel artifact level Dh(V) in a method for calculating overall distortion in a video being affected by compression artifacts and channel artifacts. The method comprises a step of adding a compression artifact level Dm(V) and a summand S that is derived from log (Dh(V)) multiplied with a factor that decreases with increasing compression artifact level Dm, such as D(V)=Dm(V)+c·(K−Dm(V))·log(Dh(V)). The result obtained is a measure for the overall distortion.

5. 发明申请

US20110206356A1 METHOD FOR EMBEDDING VIDEO ANNOTATION DATA INTO A CODED VIDEO STREAM AND VIDEO RECORDING DEVICE 有权
标题翻译：将视频通知数据嵌入到编码的视频流和视频记录设备中的方法
公开(公告)号：US20110206356A1
公开(公告)日：2011-08-25
申请号：US12450873
申请日：2007-04-20
申请人： Qu Qing Chen , Zhibo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhibo Chen , Xiao Dong Gu
IPC分类号： H04N5/917 , H04N7/26
CPC分类号： G06F17/30858 , H04N19/00 , H04N19/70 , H04N21/23892 , H04N21/44008 , H04N21/84 , H04N21/8451
摘要： The invention concerns a method for embedding video annotation data into a coded video stream. The method comprises the step of—encapsulating said video annotation data into a unit, so-called video annotation unit, of the coded video data stream which format corresponds to at least one format used for sending the associated video data,—inserting an identifiable synchronizing code enabling the identification of said video annotation unit into the video data stream.
摘要翻译：本发明涉及一种将视频注释数据嵌入到编码视频流中的方法。所述方法包括以下步骤：将所述视频注释数据封装成编码视频数据流的单位即所谓的视频注释单元，该格式对应于用于发送相关视频数据的至少一种格式， - 插入可识别的同步能够将所述视频注释单元识别为视频数据流的代码。

6. 发明申请

US20140119460A1 METHOD AND DEVICE FOR ASSESSING PACKET DEFECT CAUSED DEGRADATION IN PACKET CODED VIDEO 审中-公开
标题翻译：用于评估分组编码视频中的分组缺陷导致的降解的方法和装置
公开(公告)号：US20140119460A1
公开(公告)日：2014-05-01
申请号：US14128623
申请日：2011-06-24
申请人： Xiao Dong Gu , Ning Liao , Zhibo Chen
发明人： Xiao Dong Gu , Ning Liao , Zhibo Chen
IPC分类号： H04N19/89
CPC分类号： H04N19/89 , H04N19/154
摘要： Because of the encoding, decoding, and/or transmitting characteristic, the blocks affected by packet defect usually gather in a small spatial/temporal area. The viewers perception of each affected block will influence by other affected block in this small area. The invention proposes using processing means for clustering blocks affected by the packet loss into at least one cluster, for using at least one of spatial and temporal characteristics of the at least one cluster for determining a visibility value of the at least one cluster, for classifying the at least one cluster as belonging into one of at least two different class candidates, wherein each class candidate is associated with a different weight; for weighting the determined visibility value with the weight associated with the class of the at least one cluster, and for assessing the degradation of the video using a sum of the weighted visibility value.
摘要翻译：由于编码，解码和/或发送特性，受分组缺陷影响的块通常聚集在小的空间/时间区域中。每个受影响区块的观众感知将受到其他受影响区块的影响。本发明提出使用处理装置，用于将受分组丢失影响的块聚集到至少一个簇中，以便使用至少一个簇的空间和时间特征中的至少一个来确定至少一个簇的可见性值，以便分类所述至少一个集群属于至少两个不同类候选中的一个，其中每个类候选者与不同的权重相关联; 用于利用与所述至少一个集群的类别相关联的权重对所确定的可见性值进行加权，并且使用加权的可见性值的和来评估视频的劣化。

7. 发明申请

US20140219364A1 METHOD AND DEVICE FOR CALCULATING DISTORTION OF A VIDEO BEING AFFECTED BY COMPRESSION ARTIFACTS AND CHANNEL ARTIFACTS 审中-公开
标题翻译：用于计算压缩作物和通道作物影响的视频的失真的方法和装置
公开(公告)号：US20140219364A1
公开(公告)日：2014-08-07
申请号：US14343047
申请日：2011-09-09
申请人： Xiao Dong Gu , Fan Zhang , Zhibo Chen
发明人： Xiao Dong Gu , Fan Zhang , Zhibo Chen
IPC分类号： H04N19/86
CPC分类号： H04N19/154
摘要： In video quality control and estimation, the joint evaluation of compression artifacts and channel artifacts is a problem. The invention considers the joint perception of both a compression artifact level Dm(V) and a channel artifact level Dh(V) in a method for calculating overall distortion in a video being affected by compression artifacts and channel artifacts. The method comprises a step of adding a compression artifact level Dm(V) and a summand S that is derived from log (Dh(V)) multiplied with a factor that decreases with increasing compression artifact level Dm, such as D(V)=Dm(V)+c·(K−Dm(V))·log(Dh(V)). The result obtained is a measure for the overall distortion.
摘要翻译：在视频质量控制和估计中，压缩伪像和通道伪像的联合评估是一个问题。本发明考虑了在用于计算受压缩伪影和通道伪像影响的视频中的总体失真的方法中的压缩伪像级别Dm（V）和通道伪影级别Dh（V）的联合感知。该方法包括以下步骤：添加压缩伪像级Dm（V）和从log（Dh（V））导出的加法乘积S乘以随着压缩伪影等级Dm增加而减小的因子，例如D（V）= Dm（V）+ c·（K-Dm（V））·log（Dh（V））。获得的结果是整体失真的度量。

8. 发明授权

US09769501B2 Video quality assessment at a bitstream level 有权
公开(公告)号：US09769501B2
公开(公告)日：2017-09-19
申请号：US14405079
申请日：2012-07-17
申请人： Ning Liao , Zhibo Chen , Kai Xie
发明人： Ning Liao , Zhibo Chen , Kai Xie
IPC分类号： H04N19/895 , H04N19/44 , H04N19/184 , H04N19/139 , H04N19/177 , H04N17/00 , H04N19/86 , H04N19/89 , H04N19/154
CPC分类号： H04N19/895 , H04N17/004 , H04N19/139 , H04N19/154 , H04N19/177 , H04N19/184 , H04N19/44 , H04N19/86 , H04N19/89
摘要： A macroblock in a video sequence may be undecodable because the corresponding compressed data is lost or the syntax is out of synchronization. An undecodable macroblock may be concealed using error concealment technique. The level of initial visible artifacts caused by undecodable macroblocks may be estimated as a function of motion magnitude, error concealment distance, and/or residual energy. The initial visible artifacts may propagate spatially or temporally to other macroblocks through prediction. Considering both initial visible artifacts and propagated artifacts, levels of overall artifacts may be estimated for individual macroblocks. The visual quality for the video sequence can then be estimated by pooling the macroblock level artifact levels.

9. 发明授权

US09323997B2 Distortion/quality measurement 有权
标题翻译：畸变/质量测量
公开(公告)号：US09323997B2
公开(公告)日：2016-04-26
申请号：US14358304
申请日：2011-11-28
申请人： Xiaodong Gu , Kai Xie , Zhibo Chen
发明人： Xiaodong Gu , Kai Xie , Zhibo Chen
IPC分类号： G06K9/03 , H04N17/00
CPC分类号： G06K9/036 , H04N17/004
摘要： Various implementations address distortion and quality measurements related to, for example, freeze-with-skip and/or a freeze-without-skip events. In several implementations, information is accessed indicating that a first and second set of one or more consecutive pictures are not to be displayed. A first and second indicator are determined. In one such implementation, the first and second indicators indicate an amount of distortion across one or more types of distortive effects that result from displaying substantially a first, or second, same picture during a display time for the first, or second, set of pictures. The first and second indicators are combined in a non-linear manner. In another such implementation, the distortion is associated with a given type of distortive effect, from among multiple types of distortive effects, and the first and second indicators are combined for the given type of distortive effect.
摘要翻译：各种实施方案涉及与例如冻结跳过和/或冻结无跳跃事件相关的失真和质量测量。在几个实现中，访问指示不显示第一和第二组一个或多个连续图片的信息。确定第一和第二指示符。在一个这样的实施方案中，第一和第二指示符指示在一个或多个类型的失真效应的失真量，这是由在第一或第二组图像的显示时间期间显示基本上第一或第二相同图像而导致的。第一和第二指标以非线性方式组合。在另一个这样的实现中，失真与多种类型的失真效应中的给定类型的失真效应相关联，并且对于给定类型的失真效应组合第一和第二指示符。

10. 发明申请

US20150215619A1 METHOD AND APPARATUS FOR DETECTING GRADUAL TRANSITION PICTURE IN VIDEO BITSTREAM 有权
标题翻译：用于检测视频比特中梯度过渡图像的方法和装置
公开(公告)号：US20150215619A1
公开(公告)日：2015-07-30
申请号：US14423325
申请日：2012-12-29
申请人： Ning Liao , Zhibo Chen , Kai Xie
发明人： Ning Liao , Zhibo Chen , Kai Xie
IPC分类号： H04N19/109 , H04N19/176 , H04N19/182 , H04N19/154 , H04N19/142 , H04N19/184
CPC分类号： H04N19/109 , H04N5/147 , H04N17/004 , H04N19/11 , H04N19/142 , H04N19/154 , H04N19/176 , H04N19/182 , H04N19/184 , H04N19/48
摘要： The invention provides a method and apparatus for detecting a gradual transition picture in a bitstream. The method comprises: accessing a bitstream including encoded pictures; and determining a gradual transition picture in the bitstream using information from the bitstream without decoding the bitstream to derive pixel information.
摘要翻译：本发明提供一种用于检测比特流中的逐渐转换图像的方法和装置。该方法包括：访问包括编码图像的比特流; 以及使用来自所述比特流的信息确定所述比特流中的逐渐转换图像，而不解码所述比特流以导出像素信息。

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