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31. 发明申请

WO2014053428A1 CODING AND DECODING OF TRANSFORM SKIPPED BLOCKS 审中-公开
标题翻译：变形滑块的编码和解码
公开(公告)号：WO2014053428A1
公开(公告)日：2014-04-10
申请号：PCT/EP2013/070311
申请日：2013-09-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： STRÖM, Jacob , ANDERSSON, Kenneth
IPC分类号： H04N7/26
CPC分类号： H04N19/60 , H04N19/13 , H04N19/139 , H04N19/176 , H04N19/21 , H04N19/44 , H04N19/547 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/65 , H04N19/91
摘要： Video encoder and decoder and methods therein for transform skipped encoding and decoding of blocks of pixels. The methods comprises a modified use of an existing context model associated with transform coefficients, for deriving contexts for a bitmask indicating which residual values (i.e. not transform coefficients), in a transform skipped residual block, that are greater than one. The methods are applicable to video coding schemes such as HEVC.
摘要翻译：视频编码器及其解码器及其方法，用于转换跳过的像素块的编码和解码。所述方法包括对与变换系数相关联的现有上下文模型的修改使用，用于导出用于指示变换跳过剩余块中大于1的剩余值（即，不是变换系数）的位掩码的上下文。该方法适用于HEVC等视频编码方案。

32. 发明申请

WO2011056140A1 PREDICTION OF PIXELS IN IMAGE CODING 审中-公开
标题翻译：图像编码中像素的预测
公开(公告)号：WO2011056140A1
公开(公告)日：2011-05-12
申请号：PCT/SE2010/051212
申请日：2010-11-05
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , SAMUELSSON, Jonatan , ANDERSSON, Kenneth , SJÖBERG, Rickard
发明人： SAMUELSSON, Jonatan , ANDERSSON, Kenneth , SJÖBERG, Rickard
IPC分类号： H04N7/34 , H04N7/50
CPC分类号： H04N19/50 , H04N19/105 , H04N19/11 , H04N19/176 , H04N19/182 , H04N19/513 , H04N19/553 , H04N19/593 , H04N19/61 , H04N19/80
摘要： A method and arrangement for prediction of pixel values in an image decoder. In an image decoder, a reference vector which is provided by an image encoder is provided 500. An initiation region of pixels is determined 502, which corresponds to a reference region of pixels at the image encoder. The initiation region is spatially displaced in relation to the prediction region according to the reference vector,and a part of the initiation region overlaps a part of the prediction region. Pixel values are assigned 504 to pixels of the prediction region, whose corresponding pixel values in the initiation region are known. Pixel values of the overlapping region of the initiation region are assigned 506to the corresponding pixels in the prediction region, the pixel values being assigned 504. By determining an overlapping initiation region based on a dynamic reference vector, characteristic variations close to the prediction region are possible to utilise when predicting images, which increases the accuracy of the prediction.
摘要翻译：一种用于预测图像解码器中的像素值的方法和装置。在图像解码器中，提供由图像编码器提供的参考矢量500.确定502的像素的起始区域，其对应于图像编码器处的像素的参考区域。起始区域根据参考矢量相对于预测区域空间位移，并且起始区域的一部分与预测区域的一部分重叠。将像素值分配给预测区域的像素，其中起始区域中的相应像素值是已知的。将起始区域的重叠区域的像素值分配为506到预测区域中的对应像素，像素值被分配504.通过基于动态参考矢量确定重叠的起始区域，接近预测区域的特征变化是可能的在预测图像时使用，这增加了预测的准确性。

33. 发明申请

WO2008085109A1 ADAPTIVE FILTER REPRESENTATION 审中-公开
标题翻译：自适应滤波器表示
公开(公告)号：WO2008085109A1
公开(公告)日：2008-07-17
申请号：PCT/SE2007/051083
申请日：2007-12-27
申请人： TELEFONAKTIEBOLAGET LM ERICAAON (PUBL) , ANDERSSON, Kenneth , SJÖBERG, Rickard
发明人： ANDERSSON, Kenneth , SJÖBERG, Rickard
IPC分类号： H04N7/50
CPC分类号： H04N19/85 , H04N19/117 , H04N19/176 , H04N19/194 , H04N19/61 , H04N19/80 , H04N19/82
摘要： The present invention teaches a filter process used in intra or inter prediction of pixel blocks (12). A first, optionally interpolation, filter is applied in the first filter process to get filtered, optionally interpolated, pixel values (11; 21, 23, 25, 27). A differential filter and an adaptive gain are utilized in the second process for improving the prediction performance. The adaptivity of the gain can be made even on block basis, allowing a fine tuning of the pixel prediction and/or a fine tuning of pixel rotation and zooming. Alternatively, a combined one-step filter process using the interpolation filter, the differential filter and the adaptive gain is applied to the pixel values.
摘要翻译：本发明教导了用于像素块（12）的帧内或帧间预测的滤波处理。在第一滤波器处理中应用第一可选插值滤波器以获得滤波，可选地内插像素值（11; 21,23,25,27）。在第二过程中使用差分滤波器和自适应增益来改善预测性能。增益的自适应性甚至可以基于块进行，允许微调像素预测和/或微调像素旋转和缩放。或者，使用内插滤波器，差分滤波器和自适应增益的组合的一步滤波处理被应用于像素值。

34. 发明申请

WO2006066845A2 ADAPTIVE FILTER 审中-公开
标题翻译：自适应滤光片
公开(公告)号：WO2006066845A2
公开(公告)日：2006-06-29
申请号：PCT/EP2005/013648
申请日：2005-12-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , ROSSHOLM, Andreas , ANDERSSON, Kenneth
发明人： ROSSHOLM, Andreas , ANDERSSON, Kenneth
IPC分类号： G06T5/00 , H04N7/26
CPC分类号： G06T5/003 , G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20192 , H04N19/117 , H04N19/14 , H04N19/166 , H04N19/176 , H04N19/182 , H04N19/86 , H04N19/895
摘要： An adaptive filter that, in one embodiment, filters rows of pixels of an image in a vertical direction, stores the results in row vectors, and then filters the row vectors in the horizontal direction, and displays the results or stores the results for later display. Coefficients of a reference filter are modified based on the output from the reference filter through a table-lookup process that accesses tables of modified filter coefficients. The output of the modified filter is added to a delayed version of the input to provide the adaptive filter output.
摘要翻译：在一个实施例中，在垂直方向上对图像的像素行进行滤波的自适应滤波器将结果存储在行向量中，然后在水平方向上对行向量进行滤波，并显示结果或存储结果以便稍后显示。基于来自参考过滤器的输出，通过访问修改的滤波器系数的表的表查找处理来修改参考过滤器的系数。修改的滤波器的输出被添加到输入的延迟版本中以提供自适应滤波器输出。

35. 发明申请

WO2010127692A1 SCALABLE VIDEO CODING METHOD, ENCODER AND COMPUTER PROGRAM 审中-公开
标题翻译：可扩展视频编码方法，编码器和计算机程序
公开(公告)号：WO2010127692A1
公开(公告)日：2010-11-11
申请号：PCT/EP2009/055389
申请日：2009-05-05
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , RUSERT, Thomas , ANDERSSON, Kenneth
发明人： RUSERT, Thomas , ANDERSSON, Kenneth
IPC分类号： H04N7/26
CPC分类号： H04N19/36 , H04N19/33 , H04N19/577 , H04N19/61
摘要： A scalable video coding method for coding a video sequence (10) results in a bit stream (20} partitionable into two layer representations (20 1 , 2O 2 ) of the video sequence (10). The second layer representation (2O 2 ) has an enhanced resolution compared to the first layer representation (2O 1 .). The method includes generating (si) predictive coding parameters for the second layer using previously reconstructed pixels (14) in the second layer. The method further includes performing (s2) prediction for the first layer, using the predictive coding parameters and the previously reconstructed pixels (14) in the second layer, to generate a first layer prediction signal. The method further includes generating (s3) a first layer residual, based on the difference between the original image and the first layer prediction signal. The predictive coding parameters and the first layer residual are coded (s4) as the first layer representation (2O 1 ). An encoder (30) and computer program are also provided.
摘要翻译：一种用于对视频序列（10）进行编码的可分级视频编码方法产生可分割成视频序列（10）的两个层表示（201,2O2）的比特流（20），第二层表示（2O2）具有增强的分辨率与第一层表示（201）相比，该方法包括使用第二层中的先前重建的像素（14）生成第二层的（si）预测编码参数，该方法还包括对第一层进行（s2）预测使用预测编码参数和第二层中先前重构的像素（14）来生成第一层预测信号，该方法还包括基于原始图像和第一层之间的差异生成（s3）第一层残差第一层预测信号，预测编码参数和第一层残差被编码（s4）作为第一层表示（201），还提供编码器（30）和计算机程序。

36. 发明申请

WO2010126437A1 DISTORTION WEIGHING 审中-公开
标题翻译：失真称重
公开(公告)号：WO2010126437A1
公开(公告)日：2010-11-04
申请号：PCT/SE2010/050463
申请日：2010-04-27
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SJÖBERG, Rickard , ANDERSSON, Kenneth , CHENG, Xiaoyin
发明人： SJÖBERG, Rickard , ANDERSSON, Kenneth , CHENG, Xiaoyin
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/109 , H04N19/117 , H04N19/139 , H04N19/14 , H04N19/176 , H04N19/61
摘要： A distortion representation is estimated for a macroblock (10) of a frame (1) by determining for each subgroup (30) of at least one pixel (20) out of multiple subgroups (30) in the macroblock (10), an activity value representative of a distribution of pixel values in a neighborhood (40) comprising multiple pixels (20) and encompassing the subgroup (30).Respective distortion weights are determined for the subgroups based on the activity values. These distortion weights are employed in order to estimate the distortion representation as a weighted combination of the pixel values of the macroblock (10) and reference pixel values for the macroblock (10). The distortion weights implythat different portions of a macroblock (10) will contribute more or less to the distortion representation as compared to other portions of the macroblock (10). The distortion representation will reduceringing artifacts between high and low activity areas in a frame (1) during encoding.
摘要翻译：通过对宏块（10）中的多个子组（30）中的至少一个像素（20）的每个子组（30）进行确定来估计帧（1）的宏块（10）的失真表示，活动值代表包括多个像素（20）并且包围子组（30）的邻域（40）中的像素值的分布。基于活动值确定子组的重要的失真权重。采用这些失真权重来估计失真表示，作为宏块（10）的像素值和宏块（10）的参考像素值的加权组合。与宏块（10）的其他部分相比，变形权重暗示宏块（10）的不同部分将对失真表示贡献更多或更少。失真表示将在编码期间减少框架（1）中高和低活动区域之间的伪像。

37. 发明申请

WO2008004940A1 VIDEO DATA MANAGEMENT 审中-公开
标题翻译：视频数据管理
公开(公告)号：WO2008004940A1
公开(公告)日：2008-01-10
申请号：PCT/SE2007/000640
申请日：2007-06-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ANDERSSON, Kenneth , SJÖBERG, Rickard
发明人： ANDERSSON, Kenneth , SJÖBERG, Rickard
IPC分类号： H04N7/50
CPC分类号： H04N19/573 , H04N19/105 , H04N19/107 , H04N19/109 , H04N19/11 , H04N19/176 , H04N19/182 , H04N19/61
摘要： The invention relates to encoding and decoding pixel blocks (20) of a video frame (10) through a hybrid mode involving usage of a first prediction of a pixel block (20) and at least a second prediction of the pixel block (20). An initial first weighting factor is modified using a factor modifier to generate a first weighting factor comprising multiple different factor values that are assignable to the different pixel-based first prediction values of the first prediction. The first weighting factor is applied to the first prediction and a second weighting factor is applied to the second block prediction. The at least two weighted predictions are then combined to form a hybrid prediction of the current pixel block (20).
摘要翻译：本发明涉及通过涉及使用像素块（20）的第一预测和像素块（20）的至少第二预测的混合模式对视频帧（10）的像素块（20）进行编码和解码。使用因子修改来修改初始第一加权因子，以产生包括可分配给第一预测的不同基于像素的第一预测值的多个不同因子值的第一加权因子。将第一加权因子应用于第一预测，并且将第二加权因子应用于第二块预测。然后将至少两个加权预测组合以形成当前像素块（20）的混合预测。

38. 发明申请

WO2002071799A2 A COMMUNICATIONS SYSTEM 审中-公开
标题翻译：通信系统
公开(公告)号：WO2002071799A2
公开(公告)日：2002-09-12
申请号：PCT/SE2002/000411
申请日：2002-03-07
申请人： LAB. GRUPPEN AB ANDERSSON & BÄVHOLM , BÄVHOLM, Dan , DALBJÖRN, Klas , ANDERSSON, Kenneth
发明人： BÄVHOLM, Dan , DALBJÖRN, Klas , ANDERSSON, Kenneth
IPC分类号： H04R27/00
CPC分类号： H04R29/007 , H04R27/00 , H04R2227/003
摘要： A first local controller (30) having a device port coupled to a device control port for communicating with a device to be monitored or controlled, a primary local port for coupling to a first interface port (90) of an interface unit, and a secondary local port.
摘要翻译：第一本地控制器（30）具有耦合到设备控制端口的设备端口，用于与要监视或控制的设备进行通信;主本地端口，用于耦合到接口单元的第一接口端口（90）本地港口

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