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1. 发明申请

WO2011087449A1 METHODS AND ARRANGEMENTS FOR HTTP MEDIA STREAM DISTRIBUTION 审中-公开
标题翻译： HTTP媒体流分布的方法和安排
公开(公告)号：WO2011087449A1
公开(公告)日：2011-07-21
申请号：PCT/SE2011/050054
申请日：2011-01-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PRIDDLE, Clinton , LOHMAR, Thorsten , GABIN, Frederic
发明人： PRIDDLE, Clinton , LOHMAR, Thorsten , GABIN, Frederic
IPC分类号： H04L29/06 , H04L29/08
CPC分类号： H04L65/602 , H04L65/4084 , H04L65/4092 , H04L65/608 , H04L67/02
摘要： A method performed by a server of a communication network for making a HTTP media stream accessible to a client is provided, where a Media Presentation Description (MPD) is generated, such that the MPD is provided with at least one period element, sequentially arranged according to a media play timeline; such that each period element is provided with at least one representation and such that at least one of the at least one period element is provided with at least two alternative representations, wherein each representation is provided with an ordered sequence of at least one media segment URI, wherein each media segment URI is referencing at least one media segment of the HTTP media stream. The generated MPD enables a client to select representations and to acquire, referenced media segments based on the selected representations.
摘要翻译：提供了一种由通信网络的服务器执行的用于使客户端可访问的HTTP媒体流的方法，其中生成媒体呈现描述（MPD），使得MPD被提供有至少一个周期元素，顺序地按照媒体播放时间表; 使得每个周期元素被提供有至少一个表示，并且使得至少一个周期元素中的至少一个被提供有至少两个替代表示，其中每个表示被提供有至少一个媒体段URI的有序序列其中每个媒体段URI引用HTTP媒体流的至少一个媒体段。生成的MPD使得客户端能够基于所选择的表示来选择表示和获取所引用的媒体分段。

2. 发明申请

WO2012119655A1 DECODING OF TRANSFORMS WITH CURVED BASIS FUNCTIONS 审中-公开
标题翻译：用变换的基函数解码变换
公开(公告)号：WO2012119655A1
公开(公告)日：2012-09-13
申请号：PCT/EP2011/053580
申请日：2011-03-10
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , NORKIN, Andrey , PRIDDLE, Clinton , ANDERSSON, Kenneth
发明人： NORKIN, Andrey , PRIDDLE, Clinton , ANDERSSON, Kenneth
IPC分类号： H04N7/26 , H04N7/30
CPC分类号： H04N19/86 , H04N19/44 , H04N19/60
摘要： The solution according to embodiments of the present invention is to reconstruct image blocks where only the frequency coefficient that is most sensitive to changes of an average value of the residual image block, typically the lowest frequency coefficient, is present with a flat residual image. The other image blocks are reconstructed by applying an inverse spatial 2D transform. Hence, the other image blocks comprise image blocks with multiple coefficients and image blocks with a single coefficient and wherein the single coefficient is not the coefficient determining (703) that is most sensitive to changes of an average value of the residual image block.
摘要翻译：根据本发明的实施例的解决方案是重建图像块，其中只有残留图像块的平均值（通常为最低频率系数）的变化最敏感的频率系数以平坦残差图像存在。通过应用逆空间2D变换来重建其他图像块。因此，其他图像块包括具有多个系数的图像块和具有单个系数的图像块，并且其中单个系数不是对残留图像块的平均值的变化最敏感的系数确定（703）。

3. 发明申请

WO2012045319A1 MULTI-VIEW ENCODING AND DECODING TECHNIQUE BASED ON SINGLE-VIEW VIDEO CODECS 审中-公开
标题翻译：基于单视图视频编解码器的多视图编码和解码技术
公开(公告)号：WO2012045319A1
公开(公告)日：2012-04-12
申请号：PCT/EP2010/006072
申请日：2010-10-05
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RUSERT, Thomas , PRIDDLE, Clinton , WU, Zhuangfei
发明人： RUSERT, Thomas , PRIDDLE, Clinton , WU, Zhuangfei
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N13/161 , H04N13/10 , H04N13/106 , H04N19/196 , H04N19/436 , H04N19/50 , H04N19/597 , H04N19/61 , H04N19/70 , H04N21/236
摘要： A technique for encoding and decoding data pertaining to multiple video views is presented. A method embodiment of the encoding technique comprises the steps of providing first picture stream belonging to a first view and performing a first encoding operation to encode a picture of the first picture stream. The first encoding operation is based on a single-view video codec and provides encoder state information relevant for the encoding of another picture of the first picture stream. Also provided is a second picture stream belonging to a second video view. A second encoding operation is performed to encode a picture of the second picture stream based on the single-view video codec, wherein the second encoding operation is based on the encoder state information provided by the first encoding operation. On the basis of the encoded picture of the first picture stream and encoded picture of the second picture stream, dedicated video streams are generated.
摘要翻译：给出了用于编码和解码与多个视频视图有关的数据的技术。编码技术的方法实施例包括提供属于第一视图的第一图像流和执行第一编码操作以编码第一图像流的图像的步骤。第一编码操作基于单视图视频编解码器并且提供与第一图片流的另一图片的编码相关的编码器状态信息。还提供属于第二视频视图的第二图片流。执行第二编码操作以基于单视图视频编解码器对第二图片流的图片进行编码，其中第二编码操作基于由第一编码操作提供的编码器状态信息。基于第一图像流的编码图像和第二图像流的编码图像，生成专用视频流。

4. 发明申请

WO2012011860A1 PICTURE CODING AND DECODING 审中-公开
标题翻译：图像编码和解码
公开(公告)号：WO2012011860A1
公开(公告)日：2012-01-26
申请号：PCT/SE2011/050876
申请日：2011-06-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SJÖBERG, Rickard , PRIDDLE, Clinton
发明人： SJÖBERG, Rickard , PRIDDLE, Clinton
IPC分类号： H04N7/26 , G06T9/40 , H04N11/02
CPC分类号： A63B53/047 , A63B53/0475 , A63B60/54 , A63B2053/0408 , A63B2053/0433 , A63B2053/0454 , A63B2053/0491 , H04N19/119 , H04N19/174 , H04N19/182 , H04N19/196 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/436 , H04N19/46 , H04N19/70 , H04N19/91
摘要： A picture (1) with multiple slices (2-5) is encoded by generating a coded slice representation for each of the slices. A slice flag is set to a first value for the first slice (2) in the picture (1) and corresponding slice flags of the remaining slices (3-5) are set to a second defined value. A respective slice address is generated for each remaining slice (3-5) to enable identification of the slice start position within the picture (1) for the slice. A coded picture representation (50) of the picture (1) comprises the coded slice representations, the slice addresses and the slice flags. The slice flags enable differentiation between slices (3-5) for which slice addresses are required and the slice (2) per picture (1) for which no slice address is needed to identify its slice start position.
摘要翻译：具有多个切片（2-5）的图像（1）通过为每个切片生成编码切片表示来编码。切片标志被设置为图像（1）中的第一切片（2）的第一值，并且剩余切片（3-5）的相应切片标记被设置为第二定义值。为每个剩余的片（3-5）生成相应的片地址，以使得能够识别用于片的图片（1）内的片起始位置。图像（1）的编码图像表示（50）包括编码的切片表示，切片地址和切片标记。切片标志使得能够区分需要切片地址的切片（3-5）和每个不需要切片地址的切片（2）（1）来标识其切片开始位置。

5. 发明申请

WO2011102792A1 METHOD AND ARRANGEMENT FOR ADAPTION IN HTTP STREAMING 审中-公开
标题翻译： HTTP流中自适应的方法和布置
公开(公告)号：WO2011102792A1
公开(公告)日：2011-08-25
申请号：PCT/SE2011/050167
申请日：2011-02-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
发明人： EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
IPC分类号： H04L29/06
CPC分类号： H04L65/60 , H04L65/4084 , H04L65/607 , H04L65/80 , H04L67/02 , H04L67/42
摘要： A method of controlling adaptive HTTP streaming of media content between a HTTP server and a HTTP client in a communication system, in which system media content is arranged as a plurality of periods, and each such period comprises a plurality of representations of media segments, which method includes the steps of providing (S10) temporal alignment information for the media segments of the plurality of representations, which temporal alignment information provides indications about a temporal relation between the segments of the plurality of representations of the media content. Further, the method includes providing (S20) key frame location information for the media segments, which key frame location information provides indications about locations of key frames in the media segments of the plurality of representations. Finally, controlling (S30) adaptation of the HTTP streaming of the media content based on at least one of the provided temporal alignment information and the provided key frame location information.
摘要翻译：一种在通信系统中的HTTP服务器和HTTP客户端之间控制媒体内容的自适应HTTP流的方法，其中系统媒体内容被布置为多个周期，并且每个这样的周期包括媒体段的多个表示，其中方法包括以下步骤：提供（S10）多个表示中的媒体片段的时间对准信息，该时间对准信息提供关于媒体内容的多个表示的片段之间的时间关系的指示。此外，该方法包括提供（S20）媒体片段的关键帧位置信息，该关键帧位置信息提供关于多个表示的媒体片段中的关键帧的位置的指示。最后，基于所提供的时间对准信息和所提供的关键帧位置信息中的至少一个来控制（S30）媒体内容的HTTP流的适配。

6. 发明申请

WO2011096869A1 DE-BLOCKING FILTERING CONTROL 审中-公开
标题翻译：去阻塞过滤控制
公开(公告)号：WO2011096869A1
公开(公告)日：2011-08-11
申请号：PCT/SE2010/051494
申请日：2010-12-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , NORKIN, Andrey , ANDERSSON, Kenneth , PRIDDLE, Clinton
发明人： NORKIN, Andrey , ANDERSSON, Kenneth , PRIDDLE, Clinton
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/82
摘要： First and second filter decision values are calculated for a pixel block (10) in a video frame. The first filter decision value is representative of how smoothpixel values in a first line of pixels (11, 13, 15, 17) in the block (10) and in a corresponding first line of pixels (21, 23, 25, 27) in a neighboring pixel block (20) in the video frame are in a direction parallel to a filtering direction. The second filter decision value is representative of how close pixel values in a current line (12) of pixels (11, 13, 15, 17) in the block (10) approximate a flat line and how close pixel values in a corresponding current line (22) of pixels (21, 23, 25, 27) in the neighboring block (20) approximate a flat line. The two filter decision values are compared to respective thresholds and a strong de-blocking filter is selected for the current line (12) if the filter decision values are below the thresholds, otherwise a weak de-blocking filter is selected to combat any blocking artifacts.
摘要翻译：针对视频帧中的像素块（10）计算第一和第二滤波器判定值。第一滤波器判定值表示块（10）中的像素（11,13,15,17）中的像素（21,23,25,27）的对应的第一行中的平滑像素值如何在视频帧中的相邻像素块（20）处于与滤波方向平行的方向。第二滤波器判定值表示块（10）中的像素（11,13,15,17）的当前行（12）中的近似像素值近似于平坦线，并且相应的当前行中的像素值接近相邻块（20）中的像素（21,23,25,27）的像素（22）近似于平直线。将两个滤波器判定值与相应的阈值进行比较，并且如果滤波器判定值低于阈值，则为当前行（12）选择强的解阻塞滤波器，否则选择弱解块滤波器以对抗任何块伪影。

7. 发明申请

WO2012011859A1 PICTURE CODING AND DECODING 审中-公开
标题翻译：图像编码和解码
公开(公告)号：WO2012011859A1
公开(公告)日：2012-01-26
申请号：PCT/SE2011/050874
申请日：2011-06-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SJÖBERG, Rickard , PRIDDLE, Clinton
发明人： SJÖBERG, Rickard , PRIDDLE, Clinton
IPC分类号： H04N7/26 , G06T9/40 , H04N11/02
CPC分类号： A63B53/047 , A63B53/0475 , A63B60/54 , A63B2053/0408 , A63B2053/0433 , A63B2053/0454 , A63B2053/0491 , H04N19/119 , H04N19/174 , H04N19/182 , H04N19/196 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/436 , H04N19/46 , H04N19/70 , H04N19/91
摘要： A picture (1) with multiple slices (2-5) is encoded by determining a hierarchical granularity for the picture (1) defining a hierarchical level for slice border alignments. Address information allowing identification for a respective slice start is determined for at least a portion of the slices (2-5) based on the hierarchical granularity. The pixel values of the slices are encoded to generate coded slice representations (56). These coded slice representations (56) are included together with the address information into a coded picture representation (50) to which information of the hierarchical granularity is associated. The hierarchical granularity provides a flexible way of defining at which coding unit level slice borders can be present in the picture (1).
摘要翻译：具有多个片段（2-5）的图像（1）通过确定用于限定切片边界对齐的层级的图像（1）的分层粒度来编码。基于分级粒度来确定片段（2-5）的至少一部分的允许针对相应切片开始进行识别的地址信息。对片的像素值进行编码以生成编码片表示（56）。这些编码的切片表示（56）与地址信息一起被包括到与分层粒度的信息相关联的编码图像表示（50）中。分级粒度提供了一种灵活的方式来定义在图像（1）中哪个编码单元级别的边界可以存在的位置。

8. 发明申请

WO2011102791A1 METHOD AND ARRANGEMENT FOR REPRESENTATION SWITCHING IN HTTP STREAMING 审中-公开
标题翻译： HTTP流中代表切换的方法和布置
公开(公告)号：WO2011102791A1
公开(公告)日：2011-08-25
申请号：PCT/SE2011/050166
申请日：2011-02-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
发明人： EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
IPC分类号： H04L29/06
CPC分类号： H04L65/602 , H04L47/2416 , H04L65/4084 , H04L65/80 , H04L67/02 , H04N21/2662
摘要： In a method of enabling representation switching during HTTP streaming sessions in a communication system, arranging (S10) available representations into groups, providing (S20) information identifying the groups and their respective representations, and switching (S30) representation based on the provided group identify information.
摘要翻译：在使通信系统中的HTTP流传输会话期间进行表示切换的方法中，将（S10）可用表示排列成组，提供（S20）标识组及其各自表示的信息，以及基于所提供的组标识的切换（S30）表示信息。

9. 发明申请

WO2011010959A1 METHOD AND APPARATUS FOR ENCODING AND DECODING OF IMAGES 审中-公开
标题翻译：用于编码和解码图像的方法和装置
公开(公告)号：WO2011010959A1
公开(公告)日：2011-01-27
申请号：PCT/SE2010/050286
申请日：2010-03-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ANDERSSON, Kenneth , PRIDDLE, Clinton , NORKIN, Andrey , WU, Zhuangfei
发明人： ANDERSSON, Kenneth , PRIDDLE, Clinton , NORKIN, Andrey , WU, Zhuangfei
IPC分类号： H04N7/50
CPC分类号： H04N19/00157 , H04N19/105 , H04N19/117 , H04N19/129 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/19 , H04N19/46 , H04N19/61 , H04N19/86 , H04N19/88
摘要： An encoding method for encoding of images and corresponding decoding method is disclosed, as well as an encoder and a decoder. The encoding method comprises creating, in an encoder, a residual block from an original block and a prediction block which is an approximation of the original block, wherein the created residual block comprises residual block elements. The en-coding method further comprises re-ordering, in the encoder, the residual block elements within the residual block; and applying, in the encoder, a transform to the re-ordered residual block. By re-ordering the residual block elements prior to applying a transform, an improved efficiency of the encoding may be obtained.
摘要翻译：公开了一种用于编码图像的编码方法和相应的解码方法，以及编码器和解码器。编码方法包括在编码器中创建来自原始块的残差块和作为原始块的近似的预测块，其中所创建的残余块包括残余块元素。 en编码方法还包括在编码器中重新排序剩余块内的残余块元素; 以及在编码器中对重新排序的残余块应用变换。通过在应用变换之前重新排序残余块元素，可以获得改进的编码效率。

10. 发明申请

WO2009088353A1 SYSTEMS AND METHODS FOR USING DC CHANGE PARAMETERS IN VIDEO CODING AND DECODING 审中-公开
标题翻译：在视频编码和解码中使用直流变化参数的系统和方法
公开(公告)号：WO2009088353A1
公开(公告)日：2009-07-16
申请号：PCT/SE2009/050005
申请日：2009-01-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ANDERSSON, Kenneth , FRÖJDH, Per , SJÖBERG, Rickard , PRIDDLE, Clinton , SAMUELSSON, Jonatan
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , SJÖBERG, Rickard , PRIDDLE, Clinton , SAMUELSSON, Jonatan
IPC分类号： H04N7/50 , H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： The present application discloses systems and methods for using DC change parameters in video coding. In one embodiment, the method includes the steps of: (a) obtaining a DC change parameter; (b) decoding encoded video data to obtain reconstructed pixel values; and (c) using the reconstructed pixel values, a filter, and the DC change parameter to obtain filtered reconstructed pixel values with a DC change.
摘要翻译：本申请公开了在视频编码中使用DC变化参数的系统和方法。在一个实施例中，该方法包括以下步骤：（a）获得DC变化参数; （b）解码编码的视频数据以获得重建的像素值; 以及（c）使用重建的像素值，滤波器和DC变化参数来获得具有DC变化的经滤波的重构像素值。

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