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11. 发明申请

US20140126644A1 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的方法
公开(公告)号：US20140126644A1
公开(公告)日：2014-05-08
申请号：US14129160
申请日：2012-06-27
申请人： Jacob Ström , Jonatan Samuelsson , Rickard Sjöberg
发明人： Jacob Ström , Jonatan Samuelsson , Rickard Sjöberg
IPC分类号： H04N19/51
CPC分类号： H04N19/523 , H04N19/102 , H04N19/14 , H04N19/176 , H04N19/192 , H04N19/52
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。

12. 发明申请

US20140079115A1 ENCODING AND DECODING VIDEO SEQUENCES COMPRISING REFERENCE PICTURE SETS 有权
标题翻译：编码和解码包含参考图像集的视频序列
公开(公告)号：US20140079115A1
公开(公告)日：2014-03-20
申请号：US14000506
申请日：2013-07-01
申请人： Jacob Ström , Jonatan Samuelsson , Rickard Sjöberg
发明人： Jacob Ström , Jonatan Samuelsson , Rickard Sjöberg
IPC分类号： H04N7/26
CPC分类号： H04N19/58 , H04N19/105 , H04N19/136 , H04N19/139 , H04N19/174 , H04N19/176 , H04N19/463 , H04N19/70
摘要： A method of encoding a video sequence comprising Reference Picture Sets (RPSs) is provided. The method comprises arranging the RPSs in transmission order in a data structure, such as a Sequence Parameter Set (SPS), determining whether explicit RPS transmission is used for an RPS of a current picture of the video sequence, and encoding information indicating an RPS comprised in the data structure to be used for predicting the RPS of the current picture, such as delta_idx_minus1, only if explicit RPS transmission is used. By transmitting delta_idx_minus1 only if explicit RPS transmission is used, and interpreting delta_idx_minus1 to be equal to zero otherwise, a reduced bitrate is achieved. Further, a method of decoding a video sequence comprising RPSs, corresponding computer programs and computer program products, as well as corresponding encoders and decoders are provided.
摘要翻译：提供了一种编码包括参考图像集（RPS）的视频序列的方法。该方法包括以诸如序列参数集（SPS）的数据结构中的传输顺序来布置RPS，确定是否将用于视频序列的当前图像的RPS的显式RPS传输用于指示包括的RPS的编码信息在用于预测当前图像的RPS的数据结构中，例如Δ_idx_minus1，仅在使用显式RPS传输时。只有当使用了显式RPS传输时才传输delta_idx_minus1，否则将delta_idx_minus1解释为等于零，就可以实现降低的比特率。此外，提供了一种对包括RPS，对应的计算机程序和计算机程序产品的视频序列进行解码的方法，以及对应的编码器和解码器。

13. 发明授权

US09036705B2 Technique for bringing encoded data items into conformity with a scalable coding protocol 有权
标题翻译：使编码数据项符合可扩展编码协议的技术
公开(公告)号：US09036705B2
公开(公告)日：2015-05-19
申请号：US13255212
申请日：2009-03-13
申请人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
发明人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
IPC分类号： H04B1/66 , H04N7/36 , H04N21/845 , H04N21/2343 , H04N21/2381 , H04N21/6437 , H04N19/70 , H04N19/33 , H04N19/40
CPC分类号： H04N21/8451 , H04N19/33 , H04N19/40 , H04N19/70 , H04N21/234309 , H04N21/234327 , H04N21/2381 , H04N21/6437
摘要： A technique for making media content in the form of encoded data items decodable by a decoder operating in accordance with a scalable coding protocol that defines two or more media layers is provided. A method implementation of this technique comprises the steps of generating one or more dummy data items that define a first media layer of the scalable coding protocol, and marking the encoded data items as belonging, to a second media layer of the scalable coding protocol.
摘要翻译：提供了一种用于通过根据限定两个或多个媒体层的可伸缩编码协议操作的解码器解码的编码数据项形式的媒体内容的技术。该技术的方法实现包括以下步骤：生成定义可伸缩编码协议的第一媒体层的一个或多个伪数据项，并将编码的数据项标记为归属于可伸缩编码协议的第二媒体层。

14. 发明申请

US20120057635A1 Technique for Bringing Encoded Data Items Into Conformity with a Scalable Coding Protocol 有权
标题翻译：使编码数据项符合可扩展编码协议的技术
公开(公告)号：US20120057635A1
公开(公告)日：2012-03-08
申请号：US13255212
申请日：2009-03-13
申请人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
发明人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
IPC分类号： H04B1/66 , H04N7/36
CPC分类号： H04N21/8451 , H04N19/33 , H04N19/40 , H04N19/70 , H04N21/234309 , H04N21/234327 , H04N21/2381 , H04N21/6437
摘要： A technique for making media content in the form of encoded data items decodable by a decoder operating in accordance with a scalable coding protocol that defines two or more media layers is provided. A method implementation of this technique comprises the steps of generating one or more dummy data items that define a first media layer of the scalable coding protocol, and marking the encoded data items as belonging, to a second media layer of the scalable coding protocol.
摘要翻译：提供了一种用于通过根据限定两个或多个媒体层的可伸缩编码协议操作的解码器解码的编码数据项形式的媒体内容的技术。该技术的方法实现包括以下步骤：生成定义可伸缩编码协议的第一媒体层的一个或多个伪数据项，并将编码的数据项标记为归属于可伸缩编码协议的第二媒体层。

15. 发明授权

US09143783B2 Indicating bit stream subsets 有权
标题翻译：指示比特流子集
公开(公告)号：US09143783B2
公开(公告)日：2015-09-22
申请号：US13979797
申请日：2012-01-19
申请人： Thomas Rusert , Rickard Sjöberg , Zhuangfei Wu
发明人： Thomas Rusert , Rickard Sjöberg , Zhuangfei Wu
IPC分类号： H04N7/32 , H04N19/597 , G06F17/30 , H04N21/2343 , H04N21/235 , H04N21/236 , H04N21/434 , H04N21/4402 , H04N21/845 , H04N19/70
CPC分类号： H04L65/4069 , G06F17/30516 , H04L65/607 , H04N19/597 , H04N19/70 , H04N21/2343 , H04N21/235 , H04N21/236 , H04N21/434 , H04N21/4402 , H04N21/8451
摘要： A method of indicating bit stream subsets in a video bit stream (210) is provided. The method comprises receiving the bit stream, dividing the bit stream into video packets (211-216), wherein each packet comprises either one of video data or supplemental information, and marking each packet with a single subset identifier (stream_id). Each subset identifier is associated with a corresponding bit stream subset (221-223). Further, a method of extracting video packets from a video bit stream is provided. The method comprises providing relevant subset identifiers, receiving video packets from the bit stream, and, for each received packet, inspecting the subset identifier of the packet. The packet is extracted if the subset identifier matches one of the relevant subset identifiers. This allows condensing properties of a bit stream subset into a single identifier, thereby simplifying the processing of video packets in the network and on the client side. Further, devices corresponding to the aforementioned methods are provided.
摘要翻译：提供了一种在视频比特流（210）中指示比特流子集的方法。该方法包括接收比特流，将比特流划分成视频分组（211-216），其中每个分组包括视频数据或补充信息中的任一个，并且用单个子集标识符（stream_id）标记每个分组。每个子集标识符与对应的比特流子集（221-223）相关联。此外，提供从视频比特流中提取视频分组的方法。该方法包括提供相关的子集标识符，从比特流接收视频分组，并且对于每个接收到的分组，检查分组的子集标识符。如果子集标识符匹配相关子集标识符之一，则提取分组。这允许比特流子集的缩合属性成为单个标识符，从而简化了网络中和客户端处的视频分组的处理。此外，提供与上述方法对应的装置。

16. 发明申请

US20130287123A1 Indicating Bit Stream Subsets 有权
标题翻译：指示比特流子集
公开(公告)号：US20130287123A1
公开(公告)日：2013-10-31
申请号：US13979797
申请日：2012-01-19
申请人： Thomas Rusert , Rickard Sjöberg , Zhuangfei Wu
发明人： Thomas Rusert , Rickard Sjöberg , Zhuangfei Wu
IPC分类号： H04N7/32
CPC分类号： H04L65/4069 , G06F17/30516 , H04L65/607 , H04N19/597 , H04N19/70 , H04N21/2343 , H04N21/235 , H04N21/236 , H04N21/434 , H04N21/4402 , H04N21/8451
摘要： A method of indicating bit stream subsets in a video bit stream (210) is provided. The method comprises receiving the bit stream, dividing the bit stream into video packets (211-216), wherein each packet comprises either one of video data or supplemental information, and marking each packet with a single subset identifier (stream_id). Each subset identifier is associated with a corresponding bit stream subset (221-223). Further, a method of extracting video packets from a video bit stream is provided. The method comprises providing relevant subset identifiers, receiving video packets from the bit stream, and, for each received packet, inspecting the subset identifier of the packet. The packet is extracted if the subset identifier matches one of the relevant subset identifiers. This allows condensing properties of a bit stream subset into a single identifier, thereby simplifying the processing of video packets in the network and on the client side. Further, devices corresponding to the aforementioned methods are provided.
摘要翻译：提供了一种在视频比特流（210）中指示比特流子集的方法。该方法包括接收比特流，将比特流划分成视频分组（211-216），其中每个分组包括视频数据或补充信息中的任一个，并且用单个子集标识符（stream_id）标记每个分组。每个子集标识符与对应的比特流子集（221-223）相关联。此外，提供从视频比特流中提取视频分组的方法。该方法包括提供相关的子集标识符，从比特流接收视频分组，并且对于每个接收到的分组，检查分组的子集标识符。如果子集标识符匹配相关子集标识符之一，则提取分组。这允许比特流子集的缩合属性成为单个标识符，从而简化了网络中和客户端处的视频分组的处理。此外，提供与上述方法对应的装置。

17. 发明申请

US20130287124A1 Deblocking Filtering 有权
标题翻译：去块过滤
公开(公告)号：US20130287124A1
公开(公告)日：2013-10-31
申请号：US13979006
申请日：2012-01-13
申请人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
发明人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
IPC分类号： H04N7/26
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伪影的方法，提供视频帧。评估从位于块边界的相对侧上的从第一块和至少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，之后将第一偏移与第一阈值进行比较。如果abs [第一偏移] <第一阈值，则通过对各个像素应用正态滤波来修改来自第一块的n个连续像素的相应像素值和来自第二块的m个连续像素的各个像素值，第一偏移]> =第一阈值，通过对各像素进行弱滤波或全部滤波来修改来自第一块的j个连续像素的相应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> 0n> = j，m> = k。

18. 发明申请

US20120213449A1 Prediction of Pixels in Image Coding 有权
标题翻译：图像编码中像素的预测
公开(公告)号：US20120213449A1
公开(公告)日：2012-08-23
申请号：US13505735
申请日：2010-11-05
申请人： Jonatan Samuelsson , Kenneth Andersson , Rickard Sjöberg
发明人： Jonatan Samuelsson , Kenneth Andersson , Rickard Sjöberg
IPC分类号： G06K9/36
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 506 to 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给预测区域中的相应像素506，将像素值分配为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在预测图像时使用，这增加了预测的准确性。

19. 发明申请

US20130329814A1 Deblocking Filtering Control 有权
标题翻译：去块过滤控制
公开(公告)号：US20130329814A1
公开(公告)日：2013-12-12
申请号：US14001627
申请日：2011-12-16
申请人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
发明人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/82
摘要： A first filter decision value is calculated for a block (10) of pixels (11, 13, 15, 17) in a video frame based on pixel values of pixels (11, 13, 15) in a first line (12) of pixels (11, 13, 15, 17) in the block (10). A second filter decision value is also calculated for the block (10) based on pixel values of pixels (21, 23, 25, 27) in a corresponding first line (22) of pixels (21, 23, 25, 27) in a neighboring block (20) in the video frame. The first filter decision value is used to determine how many pixels in a line (12) of pixels (11, 13, 15, 17) in the block (10) to filter relative to a block boundary (1) between the block (10) and the neighboring block (20). The second filter decision value is used to determine how many pixels in a corresponding line (22) of pixels (21, 23, 25, 27) in the neighboring block to filter relative to the block boundary (1).
摘要翻译：基于像素的第一行（12）中的像素（11,13,15）的像素值，针对视频帧中的像素（11,13,15,17）的块（10）计算第一滤波器判定值（11,13,15,17）。还基于像素（21,23,25,27）的对应的第一行（22）中的像素（21,23,25,27）中的像素（21,23,25,27）的像素值，针对块（10）计算第二滤波器判定值，视频帧中的相邻块（20）。第一滤波器判定值用于确定块（10）中的像素（11,13,15,17）中的像素（12）中相对于块（10）之间的块边界（1）进行滤波的像素数）和相邻块（20）。第二滤波器判定值用于确定相邻块中相对于块边界（1）滤波的像素（21,23,25,27）的对应行（22）中的像素数量。

20. 发明申请

US20130294525A1 Method for Filter Control and a Filtering Control Device 有权
标题翻译：滤波器控制方法和滤波控制装置
公开(公告)号：US20130294525A1
公开(公告)日：2013-11-07
申请号：US13979495
申请日：2011-12-21
申请人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
发明人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
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，从块边界滤波相同数量的像素（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。

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