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1. 发明申请

WO2018150201A1 IMAGE OR VIDEO ENCODING AND DECODING 审中-公开
公开(公告)号：WO2018150201A1
公开(公告)日：2018-08-23
申请号：PCT/GB2018/050432
申请日：2018-02-19
申请人： BRITISH BROADCASTING CORPORATION , MRAK, Marta , BLASI, Saverio , IZQUIERDO, Ebroul , HUANG, Shenglan
发明人： MRAK, Marta , BLASI, Saverio , IZQUIERDO, Ebroul , HUANG, Shenglan
IPC分类号： H04N19/127 , H04N19/156 , H04N19/179 , H04N19/50
摘要： A method of encoding image or video content within a set of targets such as a time, a complexity, quality, and bitrate, using an encoder having a plurality of coding configurations, comprises setting an initial coding configuration in the encoder, where coding configurations differ one from the other in the number of options tested for each of one or more tools. A first part of the content is encoded in the initial configuration and measures are made of the number of times a specified tool is used and a representative time taken to test an option for that specified tool. From those measures a prediction is made of the time difference between the time taken to encode content using the initial coding configuration and the time taken to encode content using another coding configuration in which a different number of options are tested for that specified tool.

2. 发明申请

WO2007044333A2 ENCODING AND DECODING OF A VIDEO SIGNAL 审中-公开
标题翻译：视频信号的编码和解码
公开(公告)号：WO2007044333A2
公开(公告)日：2007-04-19
申请号：PCT/US2006/038624
申请日：2006-10-03
申请人： MOTOROLA INC. , IZQUIERDO, Ebroul , MRAK, Marta , SPRLJAN, Nikola
发明人： IZQUIERDO, Ebroul , MRAK, Marta , SPRLJAN, Nikola
IPC分类号： H04L7/02
CPC分类号： H04N19/167 , H04N19/122 , H04N19/137 , H04N19/159 , H04N19/17 , H04N19/61 , H04N19/619 , H04N19/63 , H04N19/635
摘要： An encoder (100) comprises a motion estimation processor (103) which generates motion compensated video frames for a video signal. The motion compensated video frames are fed to a wavelet processor (105) which applies an adaptive spatial wavelet transform to the frames to generate spatially transformed frames. An encoding processor (107) generates encoded video data for the video signal in response to the spatially transformed frames. The encoder (100) further comprises an adaptation processor (111) which determines adaptive parameters for the adaptive spatial wavelet transform in response to motion data for the motion compensated video frames. The adaptive parameters may be wavelet coefficients for the adaptive spatial wavelet transform. The decoder (300) performs the inverse operation and determines adaptive parameters for an inverse adaptive spatial wavelet transform based on received motion data. The use of motion information for adaptation of the adaptive spatial wavelet transforms allows improved video quality to data rate ratio without necessitating additional side data.
摘要翻译：编码器（100）包括生成视频信号的运动补偿视频帧的运动估计处理器（103）。运动补偿视频帧被馈送到小波处理器（105），小波处理器（105）将自适应空间小波变换应用于帧以生成经空间变换的帧。编码处理器（107）响应于空间变换的帧而产生视频信号的编码视频数据。编码器（100）还包括自适应处理器（111），其响应于运动补偿视频帧的运动数据确定自适应空间小波变换的自适应参数。自适应参数可以是自适应空间小波变换的小波系数。解码器（300）执行逆操作并且基于接收到的运动数据确定逆自适应空间小波变换的自适应参数。使用运动信息来适应自适应空间小波变换允许改进视频质量与数据速率比，而不需要额外的边数据。

3. 发明申请

WO2014162119A1 TRANSMITTING AND RECEIVING A COMPOSITE IMAGE 审中-公开
标题翻译：发送和接收复合图像
公开(公告)号：WO2014162119A1
公开(公告)日：2014-10-09
申请号：PCT/GB2014/051011
申请日：2014-03-31
申请人： BRITISH BROADCASTING CORPORATION , MRAK, Marta , NACCARI, Matteo
发明人： MRAK, Marta , NACCARI, Matteo
IPC分类号： H04N19/96 , H04N19/20 , H04N19/21
CPC分类号： H04N19/463 , H04N19/13 , H04N19/20 , H04N19/21 , H04N19/50 , H04N19/96
摘要： For a video sequence including a composite image having a foreground image and a transparency mask, a video encoder determines whether the transparency mask is the same as a transparency mask of a preceding image. Where the transparency mask is not the same, the transparency mask is encoded as an image. The encoder then transmits the encoded foreground image, any encoded transparency mask and a flag signifying whether the encoded transparency mask for a preceding image is to be used in association with the encoded foreground image of the current image.
摘要翻译：对于包括具有前景图像和透明度掩码的合成图像的视频序列，视频编码器确定透明度掩模是否与前一图像的透明度掩码相同。透明度掩码不一样的情况下，透明度掩码被编码为图像。然后，编码器发送编码的前景图像，任何编码的透明度掩码和表示前一图像的编码透明度掩码是否与当前图像的经编码的前景图像相关联地使用的标志。

4. 发明申请

WO2016083840A1 VIDEO ENCODING AND DECODING WITH SELECTION OF PREDICTION UNITS 审中-公开
标题翻译：视频编码和解码与选择预测单位
公开(公告)号：WO2016083840A1
公开(公告)日：2016-06-02
申请号：PCT/GB2015/053640
申请日：2015-11-27
申请人： BRITISH BROADCASTING CORPORATION , NACCARI, Matteo , GABRIELLINI, Andrea , MRAK, Marta
发明人： NACCARI, Matteo , GABRIELLINI, Andrea , MRAK, Marta
IPC分类号： H04N19/176 , H04N19/119 , H04N19/109 , H04N19/136 , H04N19/14 , H04N19/137
CPC分类号： H04N19/105 , H04N19/109 , H04N19/119 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/179 , H04N19/31
摘要： In video coding or decoding, coding blocks in a current frame are predicted from blocks in previously encoded frames with prediction samples and associated information organised in a prediction unit. A decision on which prediction unit type to consider for coding is made upon analysis of the distribution of a sum of absolute difference or other function of the residual signal over the block.
摘要翻译：在视频编码或解码中，预先编码的帧中的预测采样和组合在预测单元中的相关信息的块中预测当前帧中的编码块。在对块上的残差信号的绝对差或其他函数之和的分布进行分析之后，对哪个用于编码的预测单元类型进行分析。

5. 发明申请

WO2013001279A3 VIDEO ENCODING AND DECODING USING TRANSFORMS 审中-公开
公开(公告)号：WO2013001279A3
公开(公告)日：2013-01-03
申请号：PCT/GB2012/051413
申请日：2012-06-19
申请人： BRITISH BROADCASTING CORPORATION , MRAK, Marta , GABRIELLINI, Andrea , SPRLJAN, Nikola , FLYNN, David
发明人： MRAK, Marta , GABRIELLINI, Andrea , SPRLJAN, Nikola , FLYNN, David
IPC分类号： H04N7/26 , H04N7/50
摘要： Video encoding or decoding utilising a spatial transform operating on rows and columns of a block, with a set of transform skip modes including: transform on rows and columns; transform on rows only;transform on columns only;no transform. An indication of the selected mode is provided to the decoder. Coefficients are scaled by a factor dependent upon the norm of the transform vector of the skipped transform to bring the untransformed image values to the same level as transformed coefficients.

6. 发明申请

WO2013190295A1 VIDEO CODING AND DECODING 审中-公开
标题翻译：视频编码和解码
公开(公告)号：WO2013190295A1
公开(公告)日：2013-12-27
申请号：PCT/GB2013/051598
申请日：2013-06-19
申请人： BRITISH BROADCASTING CORPORATION , MRAK, Marta , NACCARI, Matteo , FLYNN, David , GABRIELLINI, Andrea
发明人： MRAK, Marta , NACCARI, Matteo , FLYNN, David , GABRIELLINI, Andrea
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/136 , H04N19/12 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/184 , H04N19/196 , H04N19/61 , H04N19/98
摘要： In video encoding, where image values are transformed to provide transform coefficients and transform coefficients are quantised to derive a compressed bitstream, an ID profile is selected at the encoder and used with a representative image intensity to scale image values in the block. The selected ID profile is signalled to the decoder with the compressed bitstream. At the decoder, the ID profile is extracted from the compressed bitstream and - after performing inverse quantisation and an inverse transform to form image values - those image values are inverse scaled.
摘要翻译：在视频编码中，其中图像值被变换以提供变换系数，并且变换系数被量化以导出压缩比特流，在编码器处选择ID简档，并使用代表图像强度来缩放块中的图像值。所选择的ID配置文件用压缩比特流发送给解码器。在解码器中，从压缩比特流中提取ID简档，并且在执行逆量化和逆变换以形成图像值之后 - 那些图像值被逆比例化。

7. 发明申请

WO2016083828A1 VIDEO ENCODING AND DECODING WITH REFERENCE FRAMES USING PREVIOUSLY ENCODED FRAME STATISTICS 审中-公开
标题翻译：使用先前编码框架的参考框架进行视频编码和解码统计
公开(公告)号：WO2016083828A1
公开(公告)日：2016-06-02
申请号：PCT/GB2015/053626
申请日：2015-11-27
申请人： BRITISH BROADCASTING CORPORATION , NACCARI, Matteo , GABRIELLINI, Andrea , MRAK, Marta
发明人： NACCARI, Matteo , GABRIELLINI, Andrea , MRAK, Marta
IPC分类号： H04N19/31 , H04N19/179 , H04N19/105 , H04N19/176 , H04N19/119 , H04N19/109 , H04N19/136 , H04N19/14 , H04N19/137
CPC分类号： H04N19/105 , H04N19/109 , H04N19/119 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/179 , H04N19/31
摘要： In video coding or decoding, multiple reference frames are permitted for a frame in one or more reference lists. The number of reference frames to evaluate for each list is selected by, in a first phase, collecting statistics over a number of initial frames on the usage of reference frames for each list and, in a second phase determining, based on the statistics, how many reference frames should be evaluated for each frame and for each reference list.
摘要翻译：在视频编码或解码中，允许在一个或多个参考列表中的帧的多个参考帧。通过在第一阶段中通过关于每个列表的参考帧的使用的多个初始帧来收集统计信息来选择用于评估每个列表的参考帧的数量，并且在第二阶段中，基于统计来确定如何应为每个帧和每个参考列表评估许多参考帧。

8. 发明申请

WO2013001278A1 VIDEO ENCODING AND DECODING USING TRANSFORMS 审中-公开
标题翻译：使用变换的视频编码和解码
公开(公告)号：WO2013001278A1
公开(公告)日：2013-01-03
申请号：PCT/GB2012/051412
申请日：2012-06-19
申请人： BRITISH BROADCASTING CORPORATION , MRAK, Marta , GABRIELLINI, Andrea , SPRLJAN, Nikola , FLYNN, David
发明人： MRAK, Marta , GABRIELLINI, Andrea , SPRLJAN, Nikola , FLYNN, David
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/132 , H04N19/122 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/60 , H04N19/61
摘要： Video encoding or decoding utilising a spatial transform operating on rows and columns of a block, with a set of transform skip modes including: transform on rows and columns; transform on rows only;transform on columns only; no transform. An indication of the selected mode is provided to the decoder.
摘要翻译：利用在块的行和列上操作的空间变换的视频编码或解码，具有一组转换跳过模式，包括：对行和列进行变换; 仅对行进行转换;仅对列进行转换; 没有变化。所选择的模式的指示被提供给解码器。

9. 发明申请

WO2016083833A1 VIDEO ENCODING AND DECODING WITH HIERARCHICAL CODING TREE 审中-公开
标题翻译：视频编码和解码与分层编码树
公开(公告)号：WO2016083833A1
公开(公告)日：2016-06-02
申请号：PCT/GB2015/053631
申请日：2015-11-27
申请人： BRITISH BROADCASTING CORPORATION , NACCARI, Matteo , GABRIELLINI, Andrea , MRAK, Marta
发明人： NACCARI, Matteo , GABRIELLINI, Andrea , MRAK, Marta
IPC分类号： H04N19/176 , H04N19/14 , H04N19/137 , H04N19/136 , H04N19/109 , H04N19/119
CPC分类号： H04N19/105 , H04N19/109 , H04N19/119 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/179 , H04N19/31
摘要： In video coding or decoding,coding blocks are split hierarchically in a coding tree and a block split decision is taken whether or not to split the block. That decision for a current block may be predicted from the block split decisions taken on predictor blocks having a defined spatial or temporal relationship to the current block.
摘要翻译：在视频编码或解码中，编码块在编码树中分层划分，并且采用块分割决定是否分割块。可以根据对具有与当前块的定义的空间或时间关系的预测块进行的块分割判定来预测对当前块的决定。

10. 发明申请

WO2014162118A1 TRANSMITTING AND RECEIVING A COMPOSITE IMAGE 审中-公开
标题翻译：发送和接收复合图像
公开(公告)号：WO2014162118A1
公开(公告)日：2014-10-09
申请号：PCT/GB2014/051010
申请日：2014-03-31
申请人： BRITISH BROADCASTING CORPORATION , MRAK, Marta , NACCARI, Matteo
发明人： MRAK, Marta , NACCARI, Matteo
IPC分类号： H04N19/21 , H04N19/20 , H04N19/33 , H04N19/503 , H04N19/593 , H04N19/96
CPC分类号： H04N19/21 , H04N19/176 , H04N19/20 , H04N19/503 , H04N19/593 , H04N19/91 , H04N19/96
摘要： For a video sequence having at least one composite image comprising a foreground and a transparency mask, a video encoder transmits the encoded foreground image and the encoded transparency mask together with a flag signifying whether or not the encoded transparency mask is to be decoded as a binary transparency mask. Clipping values may be signalled to the decoder for use in clipping of a decoded binary transparency mask.
摘要翻译：对于具有包括前景和透明度掩码的至少一个合成图像的视频序列，视频编码器将编码的前景图像和编码的透明度掩模以及表示编码的透明掩码是否被解码为二进制的标志透明面具。剪切值可以被发送到解码器，以用于限制解码的二进制透明度掩码。

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