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1. 发明申请

WO2012003584A1 METHODS AND DEVICES FOR DATA COMPRESSION USING ADAPTIVE RECONSTRUCTION LEVELS 审中-公开
标题翻译：使用自适应重建级别进行数据压缩的方法和设备
公开(公告)号：WO2012003584A1
公开(公告)日：2012-01-12
申请号：PCT/CA2011/050401
申请日：2011-06-30
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , YU, Xiang , YANG, En-Hui
发明人： HE, Dake , YU, Xiang , YANG, En-Hui
IPC分类号： H03M7/30 , H04N7/50
CPC分类号： H04N19/192 , H04N19/126 , H04N19/147 , H04N19/176 , H04N19/19
摘要： Encoding and decoding methods that perform quantization using adaptive reconstruction levels are presented. The reconstruction levels for a given partitioning of the data space may be selected based upon the distribution of data points within each sub-part defined by the partitioning. In some cases, the adaptive reconstruction levels may be based upon an average of the data points within each sub-part. In some cases, the adaptive reconstruction levels may be selected using a rate-distortion analysis including the quantization distortion associated with the levels versus the data points and the rate associated with transmitting the encoded adaptive reconstruction levels. The methods relate to data compression in a range of applications including audio, images and video.
摘要翻译：提出了使用自适应重建级别执行量化的编码和解码方法。可以基于由分区定义的每个子部分内的数据点的分布来选择数据空间的给定划分的重建级别。在一些情况下，自适应重建级别可以基于每个子部分内的数据点的平均值。在一些情况下，可以使用包括与电平相对于数据点相关联的量化失真的速率失真分析以及与发送编码的自适应重建级别相关联的速率来选择自适应重建级别。该方法涉及包括音频，图像和视频在内的一系列应用中的数据压缩。

2. 发明申请

WO2012034231A1 METHODS AND DEVICES FOR DATA COMPRESSION WITH ADAPTIVE FILTERING IN THE TRANSFORM DOMAIN 审中-公开
标题翻译：用于在变换域中进行自适应滤波的数据压缩的方法和设备
公开(公告)号：WO2012034231A1
公开(公告)日：2012-03-22
申请号：PCT/CA2011/050559
申请日：2011-09-14
申请人： RESEARCH IN MOTION LIMITED , YU, Xiang , HE, Dake , YANG, En-hui
发明人： YU, Xiang , HE, Dake , YANG, En-hui
IPC分类号： H04N7/50
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/172 , H04N19/18 , H04N19/19 , H04N19/196 , H04N19/463 , H04N19/48 , H04N19/51 , H04N19/61 , H04N19/70
摘要： Methods and devices for encoding and decoding data using adaptive transform domain filtering are described. The encoder determines a set of transform domain filter coefficients to be applied to a transform domain prediction. The filtering may, in some cases, also apply to quantized transform domain coefficients. Rate-distortion optimization may be used to determine the optimal filter coefficients on a frame-based, coding-unit-basis, or other basis.
摘要翻译：描述了使用自适应变换域过滤对数据进行编码和解码的方法和装置。编码器确定要应用于变换域预测的一组变换域滤波器系数。在一些情况下，滤波也可以应用于量化的变换域系数。可以使用速率失真优化来确定基于帧，基于编码单位或其它基础的最佳滤波器系数。

3. 发明申请

WO2012113055A1 METHODS AND DEVICES FOR DATA COMPRESSION USING OFFSET-BASED ADAPTIVE RECONSTRUCTION LEVELS 审中-公开
标题翻译：使用基于偏移的自适应重建级别进行数据压缩的方法和设备
公开(公告)号：WO2012113055A1
公开(公告)日：2012-08-30
申请号：PCT/CA2011/050350
申请日：2011-06-08
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , YU, Xiang , WANG, Jing , YANG, En-hui
发明人： HE, Dake , YU, Xiang , WANG, Jing , YANG, En-hui
IPC分类号： H03M7/30 , H04N7/50
CPC分类号： H04N19/124 , H04N19/147 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/192 , H04N19/194 , H04N19/196 , H04N19/463 , H04N19/61 , H04N19/70
摘要： Encoding and decoding methods are presented that used offset-based adaptive reconstruction levels. The offset data is inserted in the bitstream with the encoded video data. The offset data may be differential data and may be an index to an array of offset values from which the differential offset is calculated by the decoder. The offset to an adaptive reconstruction level may be adjusted for each slice. The offsets may be specific to a particular level/index and data type. In some cases, offsets may only be sent for a subset of the levels. Higher levels may apply no offset, may apply an average offset, or may apply the offset used for the highest level having a level- specific offset.
摘要翻译：提出了使用基于偏移的自适应重建级别的编码和解码方法。偏移数据被插入到具有编码视频数据的比特流中。偏移数据可以是差分数据，并且可以是由解码器计算差分偏移的偏移值的阵列的索引。可以针对每个切片调整对自适应重建级别的偏移。偏移量可能特定于特定级别/索引和数据类型。在某些情况下，偏移量只能发送给子集的级别。更高的等级可以不应用偏移量，可以应用平均偏移量，或者可以应用用于具有水平特定偏移量的最高级别的偏移量。

4. 发明申请

WO2010091504A1 IN-LOOP DEBLOCKING FOR INTRA-CODED IMAGES OR FRAMES 审中-公开
标题翻译：内编码图像或框架的环内解锁
公开(公告)号：WO2010091504A1
公开(公告)日：2010-08-19
申请号：PCT/CA2010/000180
申请日：2010-02-12
申请人： RESEARCH IN MOTION LIMITED , YU, Xiang , HE, Dake , YANG, En-Hui
发明人： YU, Xiang , HE, Dake , YANG, En-Hui
IPC分类号： G06T9/00 , H04N7/50
CPC分类号： H04N19/86 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/154 , H04N19/176 , H04N19/61 , H04N19/82 , H04N19/91
摘要： Methods and encoders/decoders for applying in-loop deblocking to intra-coded images/frames. In a decoding context, a deblocking filter is applied to reconstructed pixels of an intra-coded block prior to decoding the subsequent block in the decoding sequence. In an encoding context, a deblocking filter is applied to reconstructed pixels of an intra-coded block in an inter-coding loop before encoding a subsequent block in the coding order for the image.
摘要翻译：用于将内循环去块锁定到帧内编码图像/帧的方法和编码器/解码器。在解码上下文中，在对解码序列中的后续块进行解码之前，将去块滤波器应用于帧内编码块的重构像素。在编码上下文中，在编码图像的编码顺序中的后续块之前，将解块滤波器应用于帧间编码循环中的帧内编码块的重构像素。

5. 发明申请

WO2011088577A1 SYSTEM AND METHOD FOR ENCODING AND DECODING PULSE INDICES 审中-公开
标题翻译：编码和解码脉冲指标的系统和方法
公开(公告)号：WO2011088577A1
公开(公告)日：2011-07-28
申请号：PCT/CA2011/050036
申请日：2011-01-21
申请人： RESEARCH IN MOTION LIMITED , YU, Xiang , HE, Dake , YANG, En-Hui
发明人： YU, Xiang , HE, Dake , YANG, En-Hui
IPC分类号： G10L19/08 , G10L19/12
CPC分类号： G10L19/12 , G10L2019/0007
摘要： Methods and corresponding codec-containing devices are provided that have source coding schemes for encoding a component of an excitation. In some cases, the source coding scheme is an enumerative source coding scheme, while in other cases the source coding scheme is an arithmetic source coding scheme. In some cases, the source coding schemes are applied to encode a fixed codebook component of the excitation for a codec employing codebook excited linear prediction, for example an AMR-WB (Adaptive Multi-Rate - Wideband) speech codec.
摘要翻译：提供了具有用于编码激励分量的源编码方案的方法和相应的编解码器装置。在一些情况下，源编码方案是枚举源编码方案，而在其他情况下，源编码方案是算术源编码方案。在一些情况下，源编码方案被应用于编码采用码本激励线性预测的编解码器的激励的固定码本分量，例如AMR-WB（自适应多速率 - 宽带）语音编解码器。

6. 发明申请

WO2010091505A1 MODIFIED ENTROPY ENCODING FOR IMAGES AND VIDEOS 审中-公开
标题翻译：用于图像和视频的修改的入侵编码
公开(公告)号：WO2010091505A1
公开(公告)日：2010-08-19
申请号：PCT/CA2010/000181
申请日：2010-02-12
申请人： RESEARCH IN MOTION LIMITED , YU, Xiang , HE, Dake , YANG, En-Hui
发明人： YU, Xiang , HE, Dake , YANG, En-Hui
IPC分类号： H04N7/50
CPC分类号： H04N21/2383 , H04N19/117 , H04N19/124 , H04N19/129 , H04N19/13 , H04N19/134 , H04N19/14 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/82 , H04N19/86 , H04N19/91 , H04N21/4382 , H04N21/8543
摘要： A method and encoder for entropy encoding image data using a dynamically determined coding order, and a method and decoder for entropy decoding encoded data encoded using a dynamically determined coding order. The coding order for encoding quantized transform domain coefficients is dynamically determined for the image based on at least one characteristic of the quantized transform domain coefficients. The characteristic may be quantization step size if non-uniform quantization is employed for blocks of data.
摘要翻译：一种用于使用动态确定的编码顺序对图像数据进行熵编码的方法和编码器，以及用于熵解码使用动态确定的编码顺序编码的编码数据的方法和解码器。基于量化的变换域系数的至少一个特性，动态地为图像动态地确定编码量化的变换域系数的编码顺序。如果对数据块采用非均匀量化，则该特性可以是量化步长。

7. 发明申请

WO2010091503A1 ADAPTIVE QUANTIZATION WITH BALANCED PIXEL-DOMAIN DISTORTION DISTRIBUTION IN IMAGE PROCESSING 审中-公开
标题翻译：图像处理中平衡像素域分布分布的自适应量化
公开(公告)号：WO2010091503A1
公开(公告)日：2010-08-19
申请号：PCT/CA2010/000179
申请日：2010-02-10
申请人： RESEARCH IN MOTION LIMITED , YU, Xiang , HE, Dake , YANG, En-Hui
发明人： YU, Xiang , HE, Dake , YANG, En-Hui
IPC分类号： G06T9/00 , H04N7/50
CPC分类号： H04N19/14 , H04N19/124 , H04N19/147 , H04N19/154 , H04N19/18 , H04N19/61
摘要： Methods and encoders and decoders for adaptively quantizing transform domain coefficients in image and/or video encoding/decoding. For an image having a number of blocks, each block having N coefficients, the quantization step size for each coefficient is selected dynamically, thus resulting in a quantizer that may apply different step sizes to different coefficients. The selected step sizes for each coefficient are used for those coefficients within all blocks in the image/frame. In one aspect, the step sizes are selected on the basis of balancing pixel domain distortion when the image/frame is decoded.
摘要翻译：用于自适应地量化图像和/或视频编码/解码中的变换域系数的方法和编码器和解码器。对于具有多个块的图像，每个块具有N个系数，动态地选择每个系数的量化步长，从而得到量化器，该量化器可以将不同的步长应用于不同的系数。每个系数的所选步长被用于图像/帧中所有块内的那些系数。在一个方面中，在解码图像/帧时平衡像素域失真来选择步长。

8. 发明申请

WO2011127602A1 METHODS AND DEVICES FOR INCORPORATING DEBLOCKING INTO ENCODED VIDEO 审中-公开
标题翻译：用于将编码成嵌入视频的方法和设备
公开(公告)号：WO2011127602A1
公开(公告)日：2011-10-20
申请号：PCT/CA2011/050195
申请日：2011-04-13
申请人： RESEARCH IN MOTION LIMITED , ZAN, Jinwen , HE, Dake , YANG, En-Hui
发明人： ZAN, Jinwen , HE, Dake , YANG, En-Hui
IPC分类号： H04N7/32 , H04N7/34 , H04N7/50
CPC分类号： H04N19/105 , H04N19/117 , H04N19/154 , H04N19/17 , H04N19/82 , H04N19/86
摘要： Encoders and methods of encoding that incorporate deblocking into the encoding process. An encoder performs a two-cycle encoding process. First, an original block is processed and then reconstructed and deblocked. The reconstruction and the deblocked reconstruction are compared to the original and an intermediate block is created that contains the portions of the reconstruction or the deblocked reconstruction that are more similar to the original. In the second cycle, the intermediate block serves to generate a modified original block, which is then used in a prediction process to create a new prediction block. The new prediction block as compared to the original gives new residuals. The new prediction and new residuals are entropy coded to generate the encoded video data. The new prediction block and new residuals incorporate the deblocking elements selectively identified during the first cycle, thereby eliminating the need for deblocking at the decoder. The prediction operation may be motion prediction or spatial prediction.
摘要翻译：编码器和编码方法，将解封装入编码过程。编码器执行两周期编码处理。首先，处理原始块，然后重建和解块。将重建和解块重构与原始的重建进行比较，创建一个包含与原来更接近的重构或解块重构的部分的中间块。在第二周期中，中间块用于产生经修改的原始块，然后将其用于预测过程以创建新的预测块。与原来相比，新的预测块产生了新的残差。新的预测和新的残差被熵编码以产生编码的视频数据。新的预测块和新的残差包括在第一周期期间选择性地识别的去块元件，从而消除了在解码器处的解块的需要。预测操作可以是运动预测或空间预测。

9. 发明申请

WO2012040857A1 METHODS AND DEVICES FOR PARALLEL ENCODING AND DECODING USING A BITSTREAM STRUCTURED FOR REDUCED DELAY 审中-公开
标题翻译：使用结构化减少延迟的BITSTREAM并行编码和解码的方法和设备
公开(公告)号：WO2012040857A1
公开(公告)日：2012-04-05
申请号：PCT/CA2011/050614
申请日：2011-09-30
申请人： RESEARCH IN MOTION LIMITED , HE, Dake , KORODI, Gergely Ferenc , MARTIN-COCHER, Gaelle Christine , YANG, En-Hui
发明人： HE, Dake , KORODI, Gergely Ferenc , MARTIN-COCHER, Gaelle Christine , YANG, En-Hui
IPC分类号： H03M7/30 , H04N7/50
CPC分类号： H04N19/00775 , H03M7/30 , H03M7/40 , H03M7/4006 , H03M7/46 , H03M7/6023 , H04N19/60
摘要： Methods and devices for encoding and decoding that involve sorting bins according to their respective estimated probabilities to form subsequences, each subsequence having an associated estimated probability. Subsequences are encoded to form codewords. Ordered sets of phrases of known length are then formed from the codewords. Each first of the phrases in a set contains at least part of one codeword. The first phrase has an associated estimated probability and the probability estimates associated with each of the other phrases in the set are determined based upon the probability estimate associated with the first phrase, which permits the phrases to be decoded in parallel.
摘要翻译：用于编码和解码的方法和装置涉及根据各自的估计概率来分类分组以形成子序列，每个子序列具有相关联的估计概率。子序列被编码形成码字。然后从码字形成已知长度的有序集合。集合中的每个第一个短语包含一个码字的至少一部分。第一短语具有相关联的估计概率，并且基于与第一短语相关联的概率估计来确定与集合中的每个其他短语相关联的概率估计，其允许短语被并行解码。

10. 发明申请

WO2011127604A1 METHODS AND DEVICES FOR LOAD BALANCING IN PARALLEL ENTROPY CODING AND DECODING 审中-公开
标题翻译：用于并行入侵编码和解码的负载均衡的方法和设备
公开(公告)号：WO2011127604A1
公开(公告)日：2011-10-20
申请号：PCT/CA2011/050197
申请日：2011-04-13
申请人： RESEARCH IN MOTION LIMITED , KORODI, Gergely Ferenc , HE, Dake , YANG, En-Hui , MARTIN-COCHER, Gaëlle Christine
发明人： KORODI, Gergely Ferenc , HE, Dake , YANG, En-Hui , MARTIN-COCHER, Gaëlle Christine
IPC分类号： H04N7/50 , H03M7/30
CPC分类号： H03M7/40 , H04N19/127 , H04N19/13 , H04N19/436 , H04N19/46
摘要： Devices and methods for entropy decoding a bitstream of encoded data by extracting a plurality of encoded subsequences from a payload field of the bitstream for parallel decoding on a set of parallel entropy decoders. The method includes dividing the payload of concatenated encoded subsequences into segments using a distribution function and distributing the segments amongst the set of parallel entropy decoders to balance the computational load among the parallel entropy decoders. The received bitstream includes auxiliary information inserted by the encoder to enable the decoder to entropy decode segments that begin with a portion of an encoded subsequence.
摘要翻译：通过从比特流的有效载荷字段提取多个编码子序列来对一组并行熵解码器进行并行解码来熵解码编码数据的比特流的装置和方法。该方法包括使用分布函数将连接的编码子序列的有效载荷划分成段，并且在并行熵解码器集合之间分配段以平衡并行熵解码器之间的计算负载。所接收的比特流包括由编码器插入的辅助信息，以使解码器可以熵解码以编码子序列的一部分开头的片段。

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