专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009087095A1 ENCODING FILTER COEFFICIENTS 审中-公开
标题翻译：编码过滤器系数
公开(公告)号：WO2009087095A1
公开(公告)日：2009-07-16
申请号：PCT/EP2009/000065
申请日：2009-01-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： A method of encoding a plurality of adaptive filter coefficients (104, 107, 112) into a bitstream (110). The method comprises the steps of entropy encoding (109) the adaptive filter coefficients (104, 107, 112) into the bitstream (110), whereby a prediction (202) for an instance (204) of the adaptive filter coefficients is determined (201 ) based on at least one of the remaining adaptive filter coefficients (206), a prediction error (205) is determined (203) based on the difference between the instance (204) of the adaptive filter coefficients and the prediction (202), and wherein the step of entropy encoding (109) the plurality of adaptive filter coefficients (104, 107, 112) comprises entropy encoding (109) the prediction error (205) for the instance (204) of the adaptive filter coefficients and entropy encoding (109) the remaining adaptive filter coefficients (206). Further is provided a corresponding method of decoding a bitstream (110) of encoded adaptive filter coefficients into decoded adaptive filter coefficients (116, 118, 120, 123).
摘要翻译：一种将多个自适应滤波器系数（104,107,112）编码为比特流（110）的方法。该方法包括以下步骤：将自适应滤波器系数（104,107,112）熵编码（109）到比特流（110）中，由此确定自适应滤波器系数的实例（204）的预测（202）（201 ）基于所述剩余自适应滤波器系数（206）中的至少一个，基于所述自适应滤波器系数的实例（204）与所述预测（202）之间的差确定（203）预测误差（205），以及其中所述多个自适应滤波器系数（104,107,112）的熵编码（109）的步骤包括对所述自适应滤波器系数和熵编码（109）的实例（204）进行熵编码（109）所述预测误差（205））剩余的自适应滤波器系数（206）。还提供了将经编码的自适应滤波器系数的比特流（110）解码为解码的自适应滤波器系数（116,118,120,123）的相应方法。

2. 发明申请

WO2009088340A1 ADAPTIVE FILTERING 审中-公开
标题翻译：自适应滤波
公开(公告)号：WO2009088340A1
公开(公告)日：2009-07-16
申请号：PCT/SE2008/051149
申请日：2008-10-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： An adaptive filter having multiple filter parameters is determined by defining at least one filter parameter as having a first level of adaptivity and defining at least one other filter parameter as having a second, different level of adaptivity. The parameter values for the at least one filter parameter having the first level of adaptivity are determined among a first set of allowable filter parameter values. The parameter values for the at least one filter parameter having the second level of adaptivity are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters of the adaptive filter are achieved as the second set comprises more allowable filter parameter values than the first set. The adaptive filter is advantageously used in filtering in intra or inter predication during video encoding and decoding.
摘要翻译：具有多个滤波器参数的自适应滤波器通过将至少一个滤波器参数定义为具有第一自适应水平并且将至少一个其它滤波器参数定义为具有第二不同自适应水平来确定。具有第一自适应水平的至少一个滤波器参数的参数值在第一组允许的滤波器参数值中确定。具有第二自适应水平的至少一个滤波器参数的参数值在第二不同的可允许滤波器参数值集合中相应地确定。实现了自适应滤波器的滤波器参数中不同的自适应级别，因为第二组包括比第一组更多的允许滤波器参数值。自适应滤波器有利地用于在视频编码和解码期间的帧内或帧间预测中的滤波。

3. 发明申请

WO2009080133A8 ADAPTIVE INTRA MODE SELECTION 审中-公开
公开(公告)号：WO2009080133A8
公开(公告)日：2009-07-02
申请号：PCT/EP2008/006314
申请日：2008-07-31
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , PRIDDLE, Clinton , ANDERSSON, Kenneth , FRÖJDH, Per , SAMUELSSON, Jonatan
发明人： PRIDDLE, Clinton , ANDERSSON, Kenneth , FRÖJDH, Per , SAMUELSSON, Jonatan
IPC分类号： H04N7/26 , H04N7/50
摘要： In video encoding and decoding predictions may be generated by intra-frame prediction. Intra-frame prediction uses reconstructed pixels in a reconstructed frame. Intra-frame prediction is performed by extending the reconstructed pixels into a predicted block using intra-frame prediction modes, each intra-frame prediction mode indicating a direction of the extension. In order to reduce the number of possible intra- frame prediction modes, a subset is selected from a predetermined set of possible intra- frame prediction modes. A subset of intra-frame prediction modes can be created by forming preselection sets of intra-frame prediction modes on the basis of similarity of their associated predicted blocks and selecting a representative intra-frame prediction mode from each preselection set.

4. 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。

5. 发明申请

WO2009080132A1 IMPROVED PIXEL PREDICTION FOR VIDEO CODING 审中-公开
标题翻译：改进的像素预测用于视频编码
公开(公告)号：WO2009080132A1
公开(公告)日：2009-07-02
申请号：PCT/EP2008/005895
申请日：2008-07-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
IPC分类号： H04N7/26 , H04N7/34 , H04N7/36
CPC分类号： H04N19/593 , H04N19/103 , H04N19/117 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/194 , H04N19/523 , H04N19/82
摘要： Method of encoding an input video frame into an encoded video frame. The method comprises the steps of disassembling the input video frame into a plurality of blocks of pixels; and for each block being a current block, generating a corresponding predicted block from already reconstructed pixels, generating a residual block by subtracting the predicted block from the current block, and generating a reconstructed block from the residual block and the predicted block, generating the encoded video frame from the residual block, creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block, wherein the aligned predicted block is used in the steps of generating the residual block and generating the corresponding reconstructed block. A corresponding method for decoding the encoded video frame into a decoded video frame also uses a step of creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block.
摘要翻译：将输入视频帧编码成编码视频帧的方法。该方法包括将输入视频帧分解为多个像素块的步骤; 并且对于每个块是当前块，从已经重建的像素生成对应的预测块，通过从当前块中减去预测块产生残差块，并从残差块和预测块生成重构块，视频帧，在所述预测块的区域中创建重建像素的局部结构，并将所述预测块与所述局部结构对准以产生对准的预测块，其中所述对准预测块用于生成剩余块并生成相应的重建块。用于将编码视频帧解码为解码视频帧的相应方法还使用在预测块的区域中创建重建像素的局部结构并将预测块与局部结构对准以产生对准预测块的步骤。

6. 发明申请

WO2009157827A1 ROW EVALUATION RATE CONTROL 审中-公开
标题翻译： ROW评估率控制
公开(公告)号：WO2009157827A1
公开(公告)日：2009-12-30
申请号：PCT/SE2008/050766
申请日：2008-06-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , SAMUELSSON, Jonatan , FRÖJDH, Per , PRIDDLE, Clinton , SJÖBERG, Rickard
发明人： SAMUELSSON, Jonatan , FRÖJDH, Per , PRIDDLE, Clinton , SJÖBERG, Rickard
IPC分类号： H04N7/26
CPC分类号： H04N19/174 , H04N19/115 , H04N19/124 , H04N19/139 , H04N19/142 , H04N19/149 , H04N19/61
摘要： A communication device and method for controlling a bit rate when encoding video data that includes a plurality of frames. The method includes partitioning a received current frame into groups of blocks; estimating an energy for a current group of blocks, where the energy of the current group of blocks depends from a same group of blocks in a previous frame; determining a target number of bits for the current group of blocks; calculating a quantization parameter for the current group of blocks of the current frame based on the estimated energy of the current group of blocks and the determined target number of bits for the current group of blocks; and encoding the current group of blocks based on the calculated quantization parameter.
摘要翻译：一种用于在对包括多个帧的视频数据进行编码时控制比特率的通信装置和方法。该方法包括将接收到的当前帧划分成块组; 估计当前组块的能量，其中当前组块的能量取决于先前帧中的相同块块; 确定当前组块的目标比特数; 基于当前组块的估计能量和当前组块的确定的目标比特数，计算当前帧的当前组块的量化参数; 以及基于所计算的量化参数对当前组块进行编码。

7. 发明申请

WO2011087439A1 METHOD AND ARRANGEMENT FOR SUPPORTING PLAYOUT OF CONTENT 审中-公开
标题翻译：支持内容播放的方法和布置
公开(公告)号：WO2011087439A1
公开(公告)日：2011-07-21
申请号：PCT/SE2011/050033
申请日：2011-01-13
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , PRIDDLE, Clinton , FRÖJDH, Per , LOHMAR, Thorsten , WU, Zhuangfei
发明人： PRIDDLE, Clinton , FRÖJDH, Per , LOHMAR, Thorsten , WU, Zhuangfei
IPC分类号： H04L29/06 , H04N7/173
CPC分类号： H04N5/783 , H04L65/1059 , H04L65/4076 , H04L65/604 , H04N21/2387 , H04N21/25833 , H04N21/4516 , H04N21/454 , H04N21/47202
摘要： Methods and arrangements in a client node and a server node for supporting a decision on decoding and playout of a certain content in the client node. The methods and arrangements relate to the determining, conveying and obtaining of information related to the characteristics (level) required for decoding and playing out the certain media content at a non-regular playout rate. The method and arrangement in the client node further relate to determining, based on the obtained information, which playout rate(s) that is/are supported by the client node in regard of level. The methods and arrangements enable the client node to refrain from decoding and playout of the content at a non-regular rate requiring a level which is not supported by the client node.
摘要翻译：在客户端节点和服务器节点中用于支持在客户机节点中解码和播出特定内容的决定的方法和布置。所述方法和装置涉及确定，传送和获取与以非正常播放速率解码和播放某些媒体内容所需的特征（级别）相关的信息。客户端节点中的方法和布置还涉及基于所获得的信息来确定客户端节点在哪个级别上支持哪个播出速率。这些方法和装置使得客户端节点能够以不需要客户端节点不支持的级别的非常规速率来解码和播放内容。

8. 发明申请

WO2011049517A1 PROVISION OF SUPPLEMENTAL PROCESSING INFORMATION 审中-公开
标题翻译：补充处理信息的规定
公开(公告)号：WO2011049517A1
公开(公告)日：2011-04-28
申请号：PCT/SE2010/051119
申请日：2010-10-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
发明人： FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/46 , H04N19/44 , H04N19/597 , H04N19/70 , H04N19/85 , H04N21/235 , H04N21/2353 , H04N21/435 , H04N21/8451 , H04N21/85406
摘要： Supplemental processing information (52, 54) defining post-decoding instructions for processing decoded media content is co-organized in a file (1) together with a pseudo-identifier of a media codec employed for encoding the media content. The co-organization trigger abortion of decoding of the media content by a legacy media terminal (210) that does not recognize the pseudo-identifier but enables decoding of the media content by a media terminal (200) that recognizes the pseudo-identifier to thereby enable post-decoding processing of the decoded media content using the supplemental processing information (52, 54). The co-organization thereby prevents legacy media terminals (210) that cannot use the supplemental processing information from decoding the media content and rendering the media content in a media presentation.
摘要翻译：定义用于处理解码的媒体内容的解码后指令的补充处理信息（52,54）与用于对媒体内容进行编码的媒体编解码器的伪标识符共同组织在文件（1）中。共同组织触发由传统媒体终端（210）对不能识别伪标识符的媒体内容进行解码，但是能够由识别伪标识符的媒体终端（200）对媒体内容进行解码使用补充处理信息（52,54）来对解码的媒体内容进行后解码处理。共同组织从而防止不能使用补充处理信息的传统媒体终端（210）解码媒体内容并在媒体呈现中呈现媒体内容。

9. 发明申请

WO2008051136A1 RICH MEDIA STREAM MANAGEMENT 审中-公开
标题翻译：多媒体流水管理
公开(公告)号：WO2008051136A1
公开(公告)日：2008-05-02
申请号：PCT/SE2007/000893
申请日：2007-10-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , PRIDDLE, Clinton , FRÖJDH, Per
发明人： PRIDDLE, Clinton , FRÖJDH, Per
IPC分类号： H04N1/00
CPC分类号： H04N21/435 , H04N21/234318 , H04N21/235 , H04N21/41407 , H04N21/4316 , H04N21/44012 , H04N21/4425 , H04N21/47205 , H04N21/8543
摘要： The invention provides a secondary stream (20) of rich media packets (21, 22, 23) defining scene states of a sub-portion (34) of a scene (30) representable by a primary stream (10) or rich media packets (11, 12, 13). Local random access data defining instructions for enabling creation, when being processed, of a starting state of the scene sub-portion (34) without affecting the scene state of scene portions (32, 36) is provided. The local random access data is packed into at least one rich media packet (21, 23), which is inserted into the secondary stream (20) and transmitted to at least one user terminal (300). The local random access data can be used by terminals (300) for tuning-in to the secondary stream (20) and/ or for error recovery relating to the secondary stream (20).
摘要翻译：本发明提供一种富媒体分组（21,22,23）的次流（20），其定义由主流（10）或富媒体分组（10）表示的场景（30）的子部分（34）的场景状态 11,12,13）。提供了定义用于在不影响场景部分（32,36）的场景状态的情况下，能够在处理时创建场景子部分（34）的开始状态的指令的本地随机访问数据。本地随机接入数据被打包到至少一个富媒体分组（21,23）中，该多媒体分组被插入到次流（20）中并被发送到至少一个用户终端（300）。终端（300）可以使用本地随机接入数据来调谐到次流（20）和/或用于与次流（20）相关的错误恢复。

10. 发明申请

WO2011049519A1 METHOD AND ARRANGEMENT FOR MULTI-VIEW VIDEO COMPRESSION 审中-公开
标题翻译：多视图视频压缩的方法和布置
公开(公告)号：WO2011049519A1
公开(公告)日：2011-04-28
申请号：PCT/SE2010/051121
申请日：2010-10-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , FRÖJDH, Per , PRIDDLE, Clinton , RUSERT, Thomas
发明人： FRÖJDH, Per , PRIDDLE, Clinton , RUSERT, Thomas
IPC分类号： H04N13/00
CPC分类号： H04N19/597 , H04N13/139 , H04N13/156 , H04N13/161 , H04N13/178 , H04N13/194
摘要： Methods and arrangements for compression and de-compression of N-stream multi- view 3D video in data handling entities, e.g. a data providing node and a data presenting node. The methods and arrangements involve multiplexing (802) of at least some of the N streams of the N-stream multi-view 3D video into one pseudo 2D stream, which appears as a 2D video stream to a 2D encoder. Further, the pseudo 2D stream is provided (804) to a replaceable 2D encoder, for encoding of the pseudo 2D stream, resulting in encoded data having a 2D codec format. This codec-agnostic modular approach to 3D compression and de-compression ensures a fast and convenient access to flexible virtual 3D codecs for handling of N-stream multi-view 3D video.
摘要翻译：用于数据处理实体中的N流多视图3D视频的压缩和解压缩的方法和装置，例如，数据提供节点和数据呈现节点。所述方法和装置包括将N流多视图3D视频的N个流中的至少一些的多路复用（802）到一个伪2D流，其作为2D视频流显示给2D编码器。此外，伪2D流被提供（804）到可替换的2D编码器，用于对伪2D流的编码，导致具有2D编解码器格式的编码数据。这种与编解码器无关的3D压缩和解压缩模块化方法可确保快速方便地访问灵活的虚拟3D编解码器，以处理N-stream多视图3D视频。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式