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1. 发明申请

WO2013075335A1 VIDEO QUALITY ASSESSMENT CONSIDERING SCENE CUT ARTIFACTS 审中-公开
标题翻译：视频质量评估考虑场景剪裁艺术
公开(公告)号：WO2013075335A1
公开(公告)日：2013-05-30
申请号：PCT/CN2011/082955
申请日：2011-11-25
申请人： THOMSON LICENSING , LIAO, Ning , CHEN, Zhibo , ZHANG, Fan , XIE, Kai
发明人： LIAO, Ning , CHEN, Zhibo , ZHANG, Fan , XIE, Kai
IPC分类号： H04N7/64
CPC分类号： H04N19/48 , H04N19/154 , H04N19/87 , H04N19/895
摘要： A particular implementation detects scene cut artifacts in a bitstream without reconstructing the video. A scene cut artifact is usually observed in the decoded video (1) when a scene cut picture in the original video is partially received or (2) when a picture refers to a lost scene cut picture in the original video. To detect scene cut artifacts, candidate scene cut pictures are first selected and scene cut artifact detection is then performed on the candidate pictures. When a block is determined to have a scene cut artifact, a lowest quality level is assigned to the block.
摘要翻译：特定的实现检测比特流中的场景切割伪像，而不重建视频。通常在解码视频（1）中观察到原始视频中的场景切换图像被部分接收或（2）当图片参考原始视频中的丢失的场景切换图像时，场景切割伪影。为了检测场景切割伪像，首先选择候选场景切割图像，然后对候选图像执行场景切割伪影检测。当确定块具有场景切割伪影时，将最低质量级别分配给块。

2. 发明申请

WO2013075318A1 VIDEO QUALITY MEASUREMENT 审中-公开
标题翻译：视频质量测量
公开(公告)号：WO2013075318A1
公开(公告)日：2013-05-30
申请号：PCT/CN2011/082870
申请日：2011-11-24
申请人： THOMSON LICENSING , ZHANG, Fan , LIAO, Ning , XIE, Kai , CHEN, Zhibo
发明人： ZHANG, Fan , LIAO, Ning , XIE, Kai , CHEN, Zhibo
IPC分类号： H04N7/64
CPC分类号： H04N19/00933 , H04N17/004 , H04N19/895
摘要： A particular implementation receives a bitstream and derives parameters from the bitstream. The parameters include quantization parameters, content unpredictability parameters, ratios of lost blocks, ratios of propagated blocks, error concealment distances, motion vectors, durations of freezing, and frame rates. Using these parameters, a compression distortion factor, a slicing distortion factor, and a freezing distortion factor are estimated respectively for distortions resulting from video compression, a slicing mode error concealment, and a freezing slicing mode error concealment. The distortion factors are then mapped to a composite video quality score. For applications with limited computational power, the estimation of distortion factors can be simplified. In particular, the compression distortion factor, the slicing distortion factor, and the freezing distortion factor can be predicted from quantization parameters, ratios of lost blocks, and durations of freezing, respectively.
摘要翻译：特定实现接收比特流并从比特流导出参数。参数包括量化参数，内容不可预测性参数，丢失块的比率，传播块的比率，错误隐藏距离，运动矢量，冻结持续时间和帧速率。分别使用这些参数来估计压缩失真因子，切片失真因子和冻结失真因子，用于由视频压缩，切片模式错误隐藏和冷冻切片模式错误隐藏产生的失真。然后将失真因子映射到复合视频质量得分。对于具有有限计算能力的应用，可以简化失真因子的估计。具体地，压缩失真因子，切片失真因子和冻结失真因子可以分别从量化参数，丢失块的比率和冻结时间预测。

3. 发明申请

WO2012142014A1 METHOD AND APPARATUS FOR DETERMINING SIGNAL-TO-NOISE RATIO 审中-公开
标题翻译：用于确定信号噪声比的方法和装置
公开(公告)号：WO2012142014A1
公开(公告)日：2012-10-18
申请号：PCT/US2012/032854
申请日：2012-04-10
申请人： ALCATEL LUCENT , WANG, Jerry, Zhenyu , SANWAL, Kumud, Kumar , SUN, Jongyin , XIE, Kai , MILLER, Susan, M. , SHELTON, Marc, E.
发明人： WANG, Jerry, Zhenyu , SANWAL, Kumud, Kumar , SUN, Jongyin , XIE, Kai , MILLER, Susan, M. , SHELTON, Marc, E.
IPC分类号： H04B1/7113 , H04B17/00
CPC分类号： H04B1/7113 , H04B17/336
摘要： A method of determining a signal - to - noise ratio in a wireless network, comprising: determining (62) a noise power for each of a plurality of fingers (50); determining (82) at least one signal power associated with each of the plurality of fingers; estimating (120) a noise power at each of the plurality of fingers based on the noise power determined for each of the plurality of fingers and a total antenna power for each of the plurality of fingers; and determining (130) a signal - to - noise ratio, SIR, based on the estimated noise powers for the plurality of fingers and the determined signal powers associated with the plurality of fingers.
摘要翻译：一种确定无线网络中的信噪比的方法，包括：确定（62）多个指状物（50）中的每一个的噪声功率; 确定（82）与所述多个手指中的每一个相关联的至少一个信号功率; 基于针对所述多个手指中的每一个确定的噪声功率和所述多个手指中的每一个的总天线功率估计（120）所述多个手指中的每一个的噪声功率; 以及基于所述多个手指的估计噪声功率和与所述多个手指相关联的所确定的信号功率来确定（130）信噪比SIR。

4. 发明申请

WO2014012219A1 VIDEO QUALITY ASSESSMENT AT A BITSTREAM LEVEL 审中-公开
标题翻译：视频质量评估在BITSTREAM级别
公开(公告)号：WO2014012219A1
公开(公告)日：2014-01-23
申请号：PCT/CN2012/078766
申请日：2012-07-17
申请人： THOMSON LICENSING , LIAO, Ning , CHEN, Zhibo , XIE, Kai
发明人： LIAO, Ning , CHEN, Zhibo , XIE, Kai
IPC分类号： H04N17/00
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.
摘要翻译：视频序列中的宏块可能不可解码，因为相应的压缩数据丢失或语法不同步。可以使用错误隐藏技术来隐藏不可解码的宏块。由不可解码宏块引起的初始可见伪像的水平可以被估计为运动幅度，误差隐藏距离和/或剩余能量的函数。初始的可见伪像可以通过预测在空间或时间上传播到其他宏块。考虑到初始可见伪像和传播伪像，可以针对各个宏块估计整体伪像的级别。然后可以通过汇集宏块级别伪像级别来估计视频序列的视觉质量。

5. 发明申请

WO2013078599A1 DISTORTION/QUALITY MEASUREMENT 审中-公开
标题翻译：失败/质量测量
公开(公告)号：WO2013078599A1
公开(公告)日：2013-06-06
申请号：PCT/CN2011/083076
申请日：2011-11-28
申请人： THOMSON LICENSING , GU, Xiaodong , XIE, Kai , CHEN, Zhibo
发明人： GU, Xiaodong , XIE, Kai , CHEN, Zhibo
IPC分类号： 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。第一和第二个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。

6. 发明申请

WO2008141477A1 METHOD AND DEVICE FOR GENERATING ELECTRONIC SERVICE GUIDE 审中-公开
标题翻译：用于生成电子服务指南的方法和装置
公开(公告)号：WO2008141477A1
公开(公告)日：2008-11-27
申请号：PCT/CN2007/001642
申请日：2007-05-21
申请人： THOMSON LICENSING , LI, Jun , SHANGGUAN, Sinan , SHI, Yuntao , XIE, Kai
发明人： LI, Jun , SHANGGUAN, Sinan , SHI, Yuntao , XIE, Kai
IPC分类号： H04N7/08
CPC分类号： H04H60/51 , H04H60/39 , H04N21/25841 , H04N21/26283 , H04N21/44227
摘要： A method for generating Electronic Service Guide, comprising steps of : obtaining user information from a user in a digital video broadcasting network; generating a first Electronic Service Guide as a function of the user information, wherein the first Electronic Service Guide lists services provided by the digital video broadcasting network and associated with the user information; and sending the first Electronic Service Guide to the user.
摘要翻译：一种用于产生电子服务指南的方法，包括以下步骤：从数字视频广播网络中的用户获取用户信息; 根据用户信息生成第一电子服务指南，其中第一电子服务指南列出由数字视频广播网络提供并与用户信息相关联的服务; 并向用户发送第一个电子服务指南。

7. 发明申请

WO2007080033A1 METHOD AND APPARATUS FOR CONSTRUCTING REFERENCE PICTURE LISTS FOR SCALABLE VIDEO 审中-公开
标题翻译：用于构建可扩展视频参考图片列表的方法和装置
公开(公告)号：WO2007080033A1
公开(公告)日：2007-07-19
申请号：PCT/EP2006/069291
申请日：2006-12-05
申请人： THOMSON LICENSING , CHEN, Ying , FRANCOIS, Edouard , XIE, Kai
发明人： CHEN, Ying , FRANCOIS, Edouard , XIE, Kai
IPC分类号： H04N7/26 , H04N7/68
CPC分类号： H04N19/573 , H04N19/105 , H04N19/172 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/70 , H04N19/895
摘要： In video coding, prediction of P- and B-frames is based on reference frames, which are indicated by reference picture lists. Scalable video coding (SVC) requires this for both, base-layer and enhancement-layer. The invention describes a decoding process for reference picture list construction for spatial enhancement layer. With just one flag of syntax modification, it provides simpler and direct reference lists construction process. By using this, complicated RPLR and other syntaxes can be skipped, and the RPLR process for spatial enhancement layer can also be avoided. The process also can be used as for error concealment when the spatial enhancement layer slice is lost.
摘要翻译：在视频编码中，P-帧和B帧的预测基于参考帧，其由参考图片列表指示。可扩展视频编码（SVC）需要这两者，基层和增强层。本发明描述了用于空间增强层的参考图片列表构造的解码过程。只需一个语法修改的标志，它提供了更简单直接的参考列表构建过程。通过使用它，可以跳过复杂的RPLR和其他语法，并且还可以避免用于空间增强层的RPLR过程。该过程也可以用于当空间增强层切片丢失时的错误隐藏。

8. 发明申请

WO2006134110A1 METHOD AND APPARATUS FOR TRANSMITTING ENCODED VIDEO DATA, AND METHOD AND APPARATUS FOR DECODING VIDEO DATA 审中-公开
标题翻译：用于发送编码的视频数据的方法和装置，以及用于解码视频数据的方法和装置
公开(公告)号：WO2006134110A1
公开(公告)日：2006-12-21
申请号：PCT/EP2006/063158
申请日：2006-06-13
申请人： THOMSON LICENSING , CHEN, Ying , ZHAI, Jiefu , XIE, Kai
发明人： CHEN, Ying , ZHAI, Jiefu , XIE, Kai
IPC分类号： H04N7/64 , H04N7/26
CPC分类号： H04N21/2662 , H04N19/33 , H04N19/44 , H04N19/59 , H04N19/70 , H04N19/895 , H04N21/234327 , H04N21/4402 , H04N21/440245 , H04N21/44209 , H04N21/631 , H04N21/6375 , H04N21/6377 , H04N21/6405 , H04N21/6408 , H04N21/6437 , H04N21/658 , H04N21/8451
摘要： H.264 (AVC) uses a network abstraction layer (NAL) to process and format encoded video data into packets (NALUs), which may be mapped to transport packets for transmission. For scalable video, a NALU contains either control information (SEI, SPS, SPS_S, PPS, PPS_S), reference picture video data (IDR, IDR_S), base-layer video data (BL) or enhancement-layer video data (EL). To enable the decoding even if transport packets are lost, and thus achieve SNR scalability, video data packets of non-IDR pictures get a sequence number. A method for decoding such packetized video data comprises the steps of buffering the transport packets, extracting transport packet sequence numbers and the received video data packets, storing the video data packets containing control data (SEI, SPS, SPS_S, PPS_H, PPS_L, PPS_S_H, PPS_S_L), determining the application packet number (CN) of a missing or defective transport packet containing EL picture data (EL#1, EL#2, ...), determining and upsampling the corresponding base-layer picture, generating a new packet with default header and upsampled base-layer picture data, and decoding the buffered picture data.
摘要翻译： H.264（AVC）使用网络抽象层（NAL）来将编码的视频数据处理并格式化成分组（NALU），其可被映射到传输分组以进行传输。对于可伸缩视频，NALU包含控制信息（SEI，SPS，SPS_S，PPS，PPS_S），参考图像视频数据（IDR，IDR_S），基本层视频数据（BL）或增强层视频数据（EL）。即使传输分组丢失也能解码，从而实现SNR可伸缩性，非IDR图像的视频数据分组获得序列号。一种用于解码分组视频数据的方法包括以下步骤：缓存传输分组，提取传输分组序列号和接收到的视频数据分组，存储包含控制数据（SEI，SPS，SPS_S，PPS_H，PPS_L，PPS_S_H， PPS_S_L），确定包含EL图像数据（EL＃1，EL＃2，...）的丢失或缺陷传输分组的应用分组数（CN），确定和上采样相应的基层图像，生成新分组具有默认标题和上采样的基层图像数据，并对缓冲的图像数据进行解码。

9. 发明申请

WO2006125713A3 METHOD AND APPARATUS FOR ENCODING VIDEO DATA, AND METHOD AND APPARATUS FOR DECODING VIDEO DATA 审中-公开
公开(公告)号：WO2006125713A3
公开(公告)日：2006-11-30
申请号：PCT/EP2006/061994
申请日：2006-05-03
申请人： THOMSON LICENSING , CHEN, Ying , ZHAI, Jiefu , GAO, Kui , XIE, Kai
发明人： CHEN, Ying , ZHAI, Jiefu , GAO, Kui , XIE, Kai
IPC分类号： H04N7/26 , H04N7/46
摘要： Scalable video coding (SVC) based on H.264/AVC uses motion compensation, which results in motion vectors and residual pictures. To optimize the encoding of the residual pictures of the enhancement-layer, they can be predicted from the base-layer. This requires complex encoders and decoders. Simplified residual prediction techniques are provided that focus on reducing the encoding and decoding complexity of the spatial scalable enhancement-layer with optimized coding efficiency. The method for encoding video data containing high-pass frames and low-pass frames comprises the steps of encoding the low-pass frames, wherein residual prediction (ORP) may be used, splitting the high-pass frames into two interleaving frame groups, encoding the frames of the first of said frame groups, wherein residual prediction may be used, and encoding the frames of the second of the frame groups using an encoding method without residual prediction (NoRP).

10. 发明申请

WO2014032463A1 METHOD AND APPARATUS FOR ESTIMATING CONTENT COMPLEXITY FOR VIDEO QUALITY ASSESSMENT 审中-公开
标题翻译：用于估计视频质量评估的内容复杂度的方法和装置
公开(公告)号：WO2014032463A1
公开(公告)日：2014-03-06
申请号：PCT/CN2013/077846
申请日：2013-06-25
申请人： THOMSON LICENSING , ZHANG, Fan , LIAO, Ning , XIE, Kai , CHEN, Zhibo
发明人： ZHANG, Fan , LIAO, Ning , XIE, Kai , CHEN, Zhibo
IPC分类号： H04N17/00 , H04N7/26
CPC分类号： H04N19/154 , H04N17/004 , H04N19/114 , H04N19/177 , H04N19/192 , H04N19/36
摘要： To estimate content complexity of a video, energy of prediction residuals is calculated. The prediction residuals are usually smaller when the video is less complex and more predictable. Scales of prediction residuals also depend on encoding configurations, for example, I pictures usually have larger prediction residuals than P and B pictures even when the contents are very similar and thus have similar perceived content complexity. To more closely reflect the content complexity, alignment scaling factors are estimated for different encoding configurations. Based on the energy of prediction residuals and alignment scaling factors, an overall content unpredictability parameter can be estimated to compute a compression distortion factor for the video. The compression distortion factor, combined with slicing and freezing distortion factors, can be used to estimate a video quality metric for the video.
摘要翻译：为了估计视频的内容复杂度，计算预测残差的能量。当视频不太复杂和更可预测时，预测残差通常较小。预测残差的尺度也取决于编码配置，例如，即使当内容非常相似并且因此具有相似的感知内容复杂性时，I画面通常具有比P和B画面更大的预测残差。为了更紧密地反映内容复杂性，针对不同的编码配置估计对齐缩放因子。基于预测残差和对准缩放因子的能量，可以估计总体内容不可预测性参数以计算视频的压缩失真因子。压缩失真因子，结合切片和冻结失真因子，可用于估计视频的视频质量度量。

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