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1. 发明申请

WO2013002716A3 A METHOD A DECODER AND ENCODER FOR PROCESSING A MOTION VECTOR 审中-公开
标题翻译：一种用于处理运动矢量的解码器和编码器
公开(公告)号：WO2013002716A3
公开(公告)日：2013-04-04
申请号：PCT/SE2012050716
申请日：2012-06-27
申请人： ERICSSON TELEFON AB L M , STROEM JACOB , SJOEBERG RICKARD , SAMUELSSON JONATAN
发明人： STROEM JACOB , SJOEBERG RICKARD , SAMUELSSON JONATAN
IPC分类号： H04N7/26
CPC分类号： H04N19/00703 , H04N19/102 , H04N19/14 , H04N19/176 , H04N19/192 , H04N19/52 , H04N19/521 , H04N19/523
摘要： A method executed in the decoder is provided for determining the resolution of a motion vector specifying a reference block on the basis of the smoothness of pixels in a block, the position of this block being an approximation of the position of the reference block. If the block is considered smooth a first resolution will be accurate, while if the block is considered to be non-smooth, one or more refinement bits will be expected for adaptation at the decoder. A method executed in an encoder, capable of providing pictures to a decoder is also provided, as well as a decoder and encoder configured to execute the described methods.
摘要翻译：提供了一种在解码器中执行的方法，用于基于块中的像素的平滑度来确定指定参考块的运动矢量的分辨率，该块的位置是参考块的位置的近似值。如果块被认为是平滑的，则第一分辨率将是准确的，而如果该块被认为是非平滑的，则将在解码器处期望一个或多个精细比特来进行自适应。还提供了一种在编码器中执行的能够向解码器提供图像的方法，以及被配置为执行所述方法的解码器和编码器。

2. 发明申请

WO2008085109A8 ADAPTIVE FILTER REPRESENTATION 审中-公开
标题翻译：自适应滤波器表示
公开(公告)号：WO2008085109A8
公开(公告)日：2008-09-25
申请号：PCT/SE2007051083
申请日：2007-12-27
申请人： ERICSSON TELEFON AB L M , ANDERSSON KENNETH , SJOEBERG RICKARD
发明人： ANDERSSON KENNETH , SJOEBERG 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 bloc
摘要翻译：本发明教导了用于像素块的帧内或帧间预测的滤波处理

3. 发明申请

WO2012096614A3 A METHOD FOR DEBLOCKING FILTER CONTROL AND A DEBLOCKING FILTERING CONTROL DEVICE 审中-公开
标题翻译：一种用于消除过滤器控制和消除过滤控制装置的方法
公开(公告)号：WO2012096614A3
公开(公告)日：2013-09-12
申请号：PCT/SE2011051563
申请日：2011-12-21
申请人： ERICSSON TELEFON AB L M , NORKIN ANDREY , ANDERSSON KENNETH , SJOEBERG RICKARD
发明人： NORKIN ANDREY , ANDERSSON KENNETH , SJOEBERG RICKARD
IPC分类号： H04N7/26
CPC分类号： H04N19/90 , H04N19/117 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/86
摘要： Current deblocking filters are using the same filters with the same filtering strength irrespective of the block size and the size of the transform used. However, in the new video coding standards such as emerging HEVC the PU sizes can vary from 4 to 64 and the TU sizes can vary from 4 to 32. Therefore, filtering the same amount of pixels (e.g. two or three) from the block boundary for the block of size 4 can be excessive, while for the block size 32 it may not be enough, with the result that the boundary between two blocks is still visible. Hence, there is a need for an efficient deblocking filter control that can be used to reduce blocking artifacts at block boundaries and that does not have the above mentioned drawbacks. It is a general objective to provide an efficient deblocking filter control. Thus, the objective is solved by applying different filters for different block sizes such as CU, PU or/and TU sizes. Accordingly, the deblocking filtering strength is adjusted based on the block size, which implies that the amount of modification applied to pixels by the deblocking filter is varied depending on the block size. The amount of modification that is being varied is in one embodiment the number of pixels to be modified.
摘要翻译：当前的去块滤波器使用具有相同滤波强度的相同滤波器，而不管块大小和所使用的变换的大小。然而，在诸如新兴HEVC的新的视频编码标准中，PU尺寸可以在4到64之间变化，并且TU尺寸可以在4到32之间变化。因此，从块边界过滤相同量的像素（例如两个或三个）因为块4的大小可能会过大，而对于块大小为32，可能还不够，结果是两块之间的边界仍然可见。因此，需要一种有效的去块滤波器控制，其可以用于减少块边界处的块伪影，并且不具有上述缺点。提供有效的去块滤波器控制是一个总体目标。因此，通过对不同的块大小（例如CU，PU或/和TU尺寸）应用不同的滤波器来解决目的。因此，根据块大小调整去块滤波强度，这意味着根据块大小来改变由去块滤波器施加到像素的修改量。正在变化的修改量在一个实施例中是待修改的像素数。

4. 发明申请

WO2012096623A1 DEBLOCKING FILTERING 审中-公开
标题翻译：去块滤波
公开(公告)号：WO2012096623A1
公开(公告)日：2012-07-19
申请号：PCT/SE2012050027
申请日：2012-01-13
申请人： ERICSSON TELEFON AB L M , NORKIN ANDREY , SJOEBERG RICKARD , ANDERSSON KENNETH
发明人： NORKIN ANDREY , SJOEBERG RICKARD , ANDERSSON KENNETH
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/86 , H04L43/16 , H04N19/117 , H04N19/124 , H04N19/14 , H04N19/176 , H04N19/182
摘要： A method of reducing blocking artifacts associated with consecutive pixels of a block boundary of an image, such as e.g. a video frame is provided. Pixels values of pixels selected from a first block and at least a neighboring block, being located on opposite sides of a block boundary are evaluated. A first offset for the two pixels of each block located next to the block boundary is calculated, after which the first offset is compared to a first threshold value. If abs[first offset] = first threshold, the respective pixel values of j consecutive pixels from the first block and the respective pixel values of k consecutive pixels from the second block are modified by applying weak filtering or no filtering at all on the respective pixels, where n > 0, m>0 n>=j, and m>=k.
摘要翻译：一种减少与图像的块边界的连续像素相关联的块化伪像的方法，提供视频帧。评估从位于块边界的相对侧的第一块和至少一个相邻块选择的像素的像素值。计算位于块边界旁边的每个块的两个像素的第一偏移量，之后将第一偏移量与第一阈值进行比较。如果abs [第一偏移] <第一阈值，则来自第一块的n个连续像素的各个像素值和来自第二块的m个连续像素的各个像素值通过对各个像素应用常规滤波来修改，而如果改为abs [ 第一偏移] =第一阈值，通过在各个像素上应用弱滤波或根本不进行滤波来修改来自第一块的j个连续像素的各个像素值和来自第二块的k个连续像素的各个像素值，其中 n> 0，m> 0 n> = j，并且m> = k。

5. 发明申请

WO2012169952A2 SIGNALING OF END OF SLICES 审中-公开
标题翻译：信息结束信号
公开(公告)号：WO2012169952A2
公开(公告)日：2012-12-13
申请号：PCT/SE2012050308
申请日：2012-03-21
申请人： ERICSSON TELEFON AB L M , SJOEBERG RICKARD , WENNERSTEN PER
发明人： SJOEBERG RICKARD , WENNERSTEN PER
IPC分类号： H04N7/26
CPC分类号： H04N19/174 , H04N19/46 , H04N19/61 , H04N19/70
摘要： A slice granularity representing a hierarchical level for slice boundary alignment in a picture (1) comprising at least one slice (10, 12) of coding units (20-56) is used together with coordinates of the coding units (20-56) in a slice (10, 12) to determine those coding units (30, 46A, 46B, 36) that potentially could constitute an end of a slice (10, 12). Each coding unit (30, 46A, 46B) except one of the determined coding units (30, 46A, 46B, 36) is assigned an end-of-slice flag with a first value, while the one determined coding unit (36) gets an end-of-slice flag with a second value. The end-of-slice flags are used during decoding for identifying the end of a slice (10, 12). The embodiments provide an efficient end-of-slice flag signaling by merely assigning such flags to some of the coding units (30, 46A, 46B, 36) in the picture (1), while other coding units need no associated flag.
摘要翻译：与包括编码单元（20-56）的至少一个切片（10,12）的图像（1）中的用于切片边界对准的分级水平的切片粒度与编码单元（20-56）的坐标一起使用切片（10,12），用于确定可能构成切片（10,12）的末端的那些编码单元（30,46A，46B，36）。除了所确定的编码单元（30,46A，46B，36）之一之外的每个编码单元（30,46A，46B）被分配具有第一值的片断结束标志，而一个确定的编码单元（36）获得具有第二个值的片断结束标志。切片结束标志在解码期间用于识别切片的末端（10,12）。这些实施例通过仅向图像（1）中的一些编码单元（30,46A，46B，36）分配这样的标志来提供有效的片尾标志信号，而其他编码单元不需要相关联的标志。

6. 发明申请

WO2013006114A2 REFERENCE PICTURE MANAGEMENT FOR LAYERED VIDEO 审中-公开
标题翻译：分层视频的参考图片管理
公开(公告)号：WO2013006114A2
公开(公告)日：2013-01-10
申请号：PCT/SE2012050471
申请日：2012-05-04
申请人： ERICSSON TELEFON AB L M , SAMUELSSON JONATAN , SJOEBERG RICKARD
发明人： SAMUELSSON JONATAN , SJOEBERG RICKARD
IPC分类号： H04N7/32 , H04N19/89
CPC分类号： H04N19/00024 , H04N19/105 , H04N19/30 , H04N19/31 , H04N19/44 , H04N19/503 , H04N19/65
摘要： An encoded representation (60) of a picture (10) of a video stream (1) is decoded by retrieving buffer description information defining at least one reference picture (40, 42). The buffer description information is used to determine a picture identifier of a reference picture (40, 42), which is compared to picture identifiers of reference pictures (40, 42) stored in a decoded picture buffer (230, 350). If the reference picture (40, 42) is determined to be missing based on the comparison of picture identifiers the layer identifier of the reference picture (40, 42) obtained based on the buffer description information is compared to a layer identifier of the current picture (10) in order to determine whether the missing reference picture (40, 42) has been intentionally removed or is unintentionally lost.
摘要翻译：视频流（1）的图片（10）的编码表示（60）通过检索定义至少一个参考图片（40,42）的缓冲区描述信息来解码。缓冲器描述信息被用于确定参考图片（40,42）的图片标识符，其与存储在解码图片缓冲器（230,350）中的参考图片（40,42）的图片标识符进行比较。如果基于图片标识符的比较确定参考图片（40,42）缺失，则将基于缓冲区描述信息获得的参考图片（40,42）的层标识符与当前图片的层标识符进行比较（10），以便确定是否故意去除了或者无意中丢失了缺失的参考图片（40,42）。

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