专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

WO2012174636A1 COMPRESSING IMAGE DATA 审中-公开
标题翻译：压缩图像数据
公开(公告)号：WO2012174636A1
公开(公告)日：2012-12-27
申请号：PCT/CA2011/050384
申请日：2011-06-22
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , YU, Xiang , WANG, Jing
发明人： HE, Dake , YU, Xiang , WANG, Jing
IPC分类号： G06T9/00 , H04N7/50
CPC分类号： H04N19/48 , H04N19/105 , H04N19/176 , H04N19/463 , H04N19/50
摘要： Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block.
摘要翻译：描述用于编码和解码图像的方法，系统和计算机程序。在一些方面，访问输入数据块和预测数据块。基于将输入数据块投影到预测数据块上而产生投影因子。通过将投影因子乘以预测数据块来生成缩放预测数据块。基于输入数据块和缩放预测数据块之间的差异生成残留数据块。在一些方面，访问与残留数据块相关联的预测数据块，残差数据块和投影因子。通过将投影因子乘以预测数据块来生成缩放预测数据块。通过对残差数据块和缩放预测数据块求和来生成输出数据块。

12. 发明申请

WO2012174635A1 COMPRESSING IMAGE DATA 审中-公开
标题翻译：压缩图像数据
公开(公告)号：WO2012174635A1
公开(公告)日：2012-12-27
申请号：PCT/CA2011/050383
申请日：2011-06-22
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , YU, Xiang , WANG, Jing
发明人： HE, Dake , YU, Xiang , WANG, Jing
IPC分类号： G06T9/00 , H04N7/32 , H04N7/50
CPC分类号： H04N19/48 , H04N19/105 , H04N19/176 , H04N19/463 , H04N19/50
摘要： Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block.
摘要翻译：描述了用于编码和解码图像的方法，系统和计算机程序。在一些方面，访问输入数据块和预测数据块。基于输入数据块在预测数据块上的投影来生成投影因子。通过将投影因子乘以预测数据块来生成缩放预测数据块。基于输入数据块和缩放预测数据块之间的差生成残差数据块。在一些方面，访问与残差数据块相关联的预测数据块，残差数据块和投影因子。通过将投影因子乘以预测数据块来生成缩放预测数据块。输出数据块是通过对残差数据块和缩放预测数据块求和而生成的。

13. 发明申请

WO2012139192A3 METHODS AND DEVICES FOR CODING AND DECODING THE POSITION OF THE LAST SIGNIFICANT COEFFICIENT 审中-公开
公开(公告)号：WO2012139192A3
公开(公告)日：2012-10-18
申请号：PCT/CA2011/050200
申请日：2011-04-15
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , WANG, Jing
发明人： HE, Dake , WANG, Jing
IPC分类号： H04N7/50 , H03M7/30
摘要： Methods and devices are described for entropy coding data using an entropy coder to encode quantized transform domain coefficient data. Last significant coefficient information is signaled in the bitstream using two-dimensional coordinates for the last significant coefficient. The context for bins of one of the coordinates is based, in part, upon the value of the other of the coordinates. In one case, instead of signaling last significant coefficient information, the number of non-zero coefficients is binarized and entropy encoded.

14. 发明申请

WO2012019297A1 METHOD AND DEVICE FOR COMPRESSION OF BINARY SEQUENCES BY GROUPING MULTIPLE SYMBOLS 审中-公开
标题翻译：通过分组多个符号来压缩二进制序列的方法和装置
公开(公告)号：WO2012019297A1
公开(公告)日：2012-02-16
申请号：PCT/CA2011/050466
申请日：2011-07-28
申请人： RESEARCH IN MOTION LIMITED , KORODI, Gergely Ferenc , HE, Dake
发明人： KORODI, Gergely Ferenc , HE, Dake
IPC分类号： H03M7/30 , H04N7/50
CPC分类号： H03M7/4056 , H03M7/4006 , H03M7/42 , H04N19/91 , H04N19/96
摘要： A method for encoding an input sequence of symbols to produce a bitstream and a method of decoding the bitstream to generate a reconstructed binary sequence. Encoding employs 2 L -ary encoding trees having codewords associated with leaf nodes. A context model is used to select an encoding tree corresponding to an estimated probability at the encoder. The same context model is used by the decoder to select a decoding tree. The decoder interleaves bits from decoded sequences of length-L strings associated with different estimated probabilities, based on the context model.
摘要翻译：用于对输入的符号序列进行编码以产生比特流的方法以及对比特流进行解码以产生重构的二进制序列的方法。编码采用具有与叶节点相关联的码字的2L方编码树。上下文模型用于在编码器处选择与估计概率相对应的编码树。解码器使用相同的上下文模型来选择解码树。解码器基于上下文模型，对与不同估计概率相关联的长度L字符串的解码序列进行交织。

15. 发明申请

WO2012096671A1 MOBILE MEDIA CONTENT DELIVERY 审中-公开
标题翻译：移动媒体内容交付
公开(公告)号：WO2012096671A1
公开(公告)日：2012-07-19
申请号：PCT/US2011/021322
申请日：2011-01-14
申请人： RESEARCH IN MOTION LIMITED , SHEYNMAN, Arnold , PECEN, Mark , VILLAFLOR, Marcel , HE, Dake
发明人： SHEYNMAN, Arnold , PECEN, Mark , VILLAFLOR, Marcel , HE, Dake
IPC分类号： H04L29/06
CPC分类号： H04L65/601
摘要： A system and method are disclosed for managing the wireless delivery of streaming media content to a user equipment (UE) device. A UE device establishes a network connection with a local wireless network, which in turn is associated with a wireless network region with a corresponding data infrastructure server. The UE device then requests predetermined streaming media content from the data infrastructure server. A determination is made whether the requested streaming media content is stored in transcoded form on the data infrastructure server. If so, then a control information network is implemented to transmit and receive streaming media content control data between the UE device and the data infrastructure server. In turn, the streaming media content control data is used by the data infrastructure server to control the transmission of the transcoded streaming media content over a data network for delivery to the UE device.
摘要翻译：公开了一种用于管理流媒体内容到用户设备（UE）设备的无线传送的系统和方法。 UE设备与本地无线网络建立网络连接，本地无线网络又与具有相应数据基础设施服务器的无线网络区域相关联。然后，UE设备从数据基础设施服务器请求预定的流媒体内容。确定所请求的流媒体内容是否以代码转换形式存储在数据基础架构服务器上。如果是这样，则实施控制信息网络以在UE设备和数据基础设施服务器之间传送和接收流媒体内容控制数据。反过来，数据基础架构服务器使用流媒体内容控制数据来控制经过数据网络的代码转换的流媒体内容的传输，以传送给UE设备。

16. 发明申请

WO2011130854A1 METHODS AND DEVICES FOR REORDERED PARALLEL ENTROPY CODING AND DECODING 审中-公开
标题翻译：用于重新平行并行编码和解码的方法和设备
公开(公告)号：WO2011130854A1
公开(公告)日：2011-10-27
申请号：PCT/CA2011/050208
申请日：2011-04-19
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , MARTIN-COCHER, Gaëlle Christine , KORODI, Gergely Ferenc
发明人： HE, Dake , MARTIN-COCHER, Gaëlle Christine , KORODI, Gergely Ferenc
IPC分类号： H04N7/50 , H03M7/30
CPC分类号： H03M7/40
摘要： A method for parallel context modeling through reordering the bits of an input sequence to form groups of bits in accordance with a context model-specific reordering schedule. The reordering schedule is developed such that the groups of bits are formed to satisfy two conditions: first, that the context for each of the bits in a group of bits is different from the context of each of the other bits in that group, and the context of each of the bits in that group is determined independently from each of the other bits in that group. The parallel context modeling may be used in encoding or decoding operations.
摘要翻译：一种用于通过根据上下文模型特定的重排序表重新排序输入序列的比特以形成比特组的并行上下文建模的方法。重新排序调度被开发成使得位组被形成为满足两个条件：首先，位组中的每个比特的上下文不同于该组中的每个其他比特的上下文，并且该组中每个位的上下文独立于该组中的每个其他位确定。并行上下文建模可用于编码或解码操作。

17. 发明申请

WO2012092662A1 CODING OF RESIDUAL DATA IN PREDICTIVE COMPRESSION 审中-公开
标题翻译：预测压缩中残留数据的编码
公开(公告)号：WO2012092662A1
公开(公告)日：2012-07-12
申请号：PCT/CA2011/050805
申请日：2011-12-22
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , MENG, Jin
发明人： HE, Dake , MENG, Jin
IPC分类号： H04N7/26 , H04N7/30 , H04N7/32 , H04N7/50
CPC分类号： H04N19/176 , H04N19/124 , H04N19/13 , H04N19/136 , H04N19/18 , H04N19/21 , H04N19/48 , H04N19/50 , H04N19/61 , H04N19/91
摘要： Encoding input data includes: generating a first block of coefficients based on a transform performed on a residual block of data for multiple pixels; generating reference information based on a reference block of data corresponding to the residual block of data; and determining losslessly decodable code values representing the first block of coefficients based on the reference information.
摘要翻译：编码输入数据包括：基于对多个像素的剩余数据块执行的变换来生成第一系数块; 基于与所述剩余数据块相对应的数据的参考块生成参考信息; 以及基于所述参考信息确定表示所述第一系数块的无损解码代码值。

18. 发明申请

WO2012092661A1 CODING OF RESIDUAL DATA IN PREDICTIVE COMPRESSION 审中-公开
标题翻译：预测压缩中残留数据的编码
公开(公告)号：WO2012092661A1
公开(公告)日：2012-07-12
申请号：PCT/CA2011/050803
申请日：2011-12-22
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , MENG, Jin
发明人： HE, Dake , MENG, Jin
IPC分类号： H04N7/50
CPC分类号： H04N19/48 , H04N19/13 , H04N19/136 , H04N19/18 , H04N19/61 , H04N19/91
摘要： Encoding input data including one or more frames includes: generating a residual block based on a difference between a first block of data for multiple pixels in a first frame and a second block of data derived from information in the input data; generating a first block of coefficients based on a transform performed on the residual block; generating reference information based on the second block of data; and determining portions of a code value representing respective portions of the first block of coefficients based on at least one value derived from at least a portion of the reference information.
摘要翻译：对包括一个或多个帧的输入数据进行编码包括：基于第一帧中的多个像素的第一数据块和从输入数据中的信息导出的第二数据块之间的差产生残差块; 基于对所述残余块执行的变换来生成第一系数块; 基于所述第二数据块生成参考信息; 以及基于从所述参考信息的至少一部分导出的至少一个值来确定表示所述第一系数块的各个部分的代码值的部分。

19. 发明申请

WO2011143780A1 METHODS AND DEVICES FOR REDUCING SOURCES IN BINARY ENTROPY CODING AND DECODING 审中-公开
标题翻译：用于减少二进制熵编码和解码中的源的方法和装置
公开(公告)号：WO2011143780A1
公开(公告)日：2011-11-24
申请号：PCT/CA2011/050318
申请日：2011-05-20
申请人： RESEARCH IN MOTION LIMITED , KORODI, Gergely, Korodi , HE, Dake
发明人： KORODI, Gergely, Korodi , HE, Dake
IPC分类号： H03M7/42 , H04N7/50
CPC分类号： H03M7/4006
摘要： Methods and systems are described for combining sources in a data compression system. In a system in which a context model results in the production of multiple sources or symbols, each source being associated with a probability estimate, sources may be combined by defining another, reduced size, set of probabilities. The new set of probabilities may be a subset of the predefined set of probabilities provided by the context model. Minimizing relative entropy may be a basis upon which to define a mapping of predefined probabilities to the new set of probabilities. An input sequence that was modeled using the context model may then be entropy encoded and entropy decoded using the new set of probabilities based on a mapping between the new probabilities and the predefined probabilities.
摘要翻译：描述了用于在数据压缩系统中组合源的方法和系统。在上下文模型导致产生多个源或符号的系统中，每个源与概率估计相关联，源可以通过定义另一个缩小的大小的概率集合来组合。新的概率集合可以是由上下文模型提供的预定义概率集合的子集。最小化相对熵可以是将预定义概率映射到新的概率集合的基础。然后使用上下文模型建模的输入序列可以基于新概率和预定义概率之间的映射，使用新的概率集进行熵编码和熵解码。

20. 发明申请

WO2013113088A1 METHODS AND DEVICES FOR CONTEXT MODELING TO ENABLE MODULAR PROCESSING 审中-公开
标题翻译：用于上下文建模以实现模块化处理的方法和装置
公开(公告)号：WO2013113088A1
公开(公告)日：2013-08-08
申请号：PCT/CA2012/050051
申请日：2012-01-30
申请人： RESEARCH IN MOTION LIMITED , NGUYEN, Nguyen , JI, Tianying , HE, Dake
发明人： NGUYEN, Nguyen , JI, Tianying , HE, Dake
IPC分类号： H04N7/50 , H03M7/30
CPC分类号： H04N19/184 , H04N19/13 , H04N19/18
摘要： Methods of encoding and decoding for video data are described for encoding or decoding coefficients for a transform unit. In particular, the significant-coefficient flags for a coefficient group are encoded and decoded based upon a context determination, and the context is determined based upon the values of neighboring flags. The neighborhood used to determine the context varies depending on whether the significant-coefficient flag to be encoded or decoded is in the two right columns or two bottom rows of the coefficient group or not. The upper-left corner may also have a different neighborhood. If the flag is in one of the two right columns or two bottom rows one of the alternative context neighborhoods is used to avoid relying on significant-coefficient flags in other coefficient groups.
摘要翻译：描述了用于视频数据的编码和解码的方法，用于对变换单元的系数进行编码或解码。特别地，基于上下文确定对系数组的有效系数标志进行编码和解码，并且基于相邻标志的值确定上下文。用于确定上下文的邻域取决于要编码或解码的有效系数标志是否在系数组的两个右列或两个底行。左上角也可能有不同的邻域。如果标志位于两个右列之一或两个底行中，则替代上下文邻域之一用于避免依赖于其他系数组中的有效系数标志。

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