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1. 发明授权

US08582639B2 Methods and devices for data compression using adaptive reconstruction levels 有权
标题翻译：使用自适应重建级别的数据压缩的方法和设备
公开(公告)号：US08582639B2
公开(公告)日：2013-11-12
申请号：US12830548
申请日：2010-07-06
申请人： Dake He , Xiang Yu , En-Hui Yang
发明人： Dake He , Xiang Yu , En-Hui Yang
IPC分类号： H04N7/50 , H04B1/66
CPC分类号： H04N19/192 , H04N19/126 , H04N19/147 , H04N19/172 , H04N19/174 , 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，可以使用速率 - 失真分析来选择自适应重建级别，所述速率 - 失真分析包括与所述级别相对于所述数据点相关联的量化失真和与传送所述编码的自适应重建级别相关联的速率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. 发明授权

US08411742B2 Soft decision and iterative video coding for MPEG and H.264 有权
公开(公告)号：US08411742B2
公开(公告)日：2013-04-02
申请号：US13244751
申请日：2011-09-26
申请人： En-Hui Yang , Xiang Yu
发明人： En-Hui Yang , Xiang Yu
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/00781 , H04N19/103 , H04N19/147 , H04N19/61
摘要： A method of encoding video data using soft decision quantization makes use of iterative encoding to provide the ability to optimize encoding across different functional elements in a hybrid video encoder. Iterative encoding is used to allow quantization step size, motion prediction and quantization levels to be optimized despite their interrelated nature.

3. 发明授权

US08175169B2 Method and system for optimizing quantization for noisy channels 有权
标题翻译：用于优化噪声通道量化的方法和系统
公开(公告)号：US08175169B2
公开(公告)日：2012-05-08
申请号：US12371127
申请日：2009-02-13
申请人： En-hui Yang , Haiquan Wang , Xiang Yu
发明人： En-hui Yang , Haiquan Wang , Xiang Yu
IPC分类号： H04B14/04
CPC分类号： H04L1/0014 , H03M7/3082 , H04L1/0042
摘要： Methods are described for configuring a quantizer to achieve improved end-to-end distortion performance when transmitting encoded source data over a noisy channel. The codebook and partitioning are selected using an iterative process of determining an updated codebook and an updated partition space, where the updated codebook is based, in part, on the average symbol error probability of the channel. Complete knowledge of the transitional probabilities of the channel is not required. Variants of the iterative process are described.
摘要翻译：描述了用于配置量化器以在通过有噪声通道发送编码的源数据时实现改进的端到端失真性能的方法。使用确定更新的码本和更新的分区空间的迭代过程来选择码本和划分，其中更新的码本部分地基于信道的平均符号错误概率。不需要完全了解频道的过渡概率。描述迭代过程的变体。

4. 发明申请

US20120093428A1 METHOD AND DEVICE FOR DOWN-SAMPLING A DCT IMAGE IN THE DCT DOMAIN 有权
标题翻译：用于在DCT域中下采样DCT图像的方法和装置
公开(公告)号：US20120093428A1
公开(公告)日：2012-04-19
申请号：US13311781
申请日：2011-12-06
申请人： Xiang Yu , En-hui Yang , Haiquan Wang
发明人： Xiang Yu , En-hui Yang , Haiquan Wang
IPC分类号： G06K9/36
CPC分类号： G06T3/4084
摘要： A method and device that uses transform matrices to down-sample a DCT image directly in the DCT domain. The transform matrices have been selected to minimize an optimization problem which is a function of the visual quality of down-sampled images obtained using the matrices and the computational complexity associated with using the transform matrices. The transform matrices comprise a row transform matrix and a column transform matrix. A down-sampled image is produced by determining an intermediary matrix as the product of the DCT image and one of either the row transform matrix or the column transform matrix and then determining the down-sampled image as the product of the intermediary matrix and the transform matrix not already used to determine the intermediary matrix.
摘要翻译：一种使用变换矩阵直接在DCT域中对DCT图像进行下采样的方法和装置。已经选择了变换矩阵以最小化优化问题，该优化问题是使用矩阵获得的下采样图像的视觉质量以及与使用变换矩阵相关联的计算复杂度的函数。变换矩阵包括行变换矩阵和列变换矩阵。通过将中间矩阵确定为DCT图像与行变换矩阵或列变换矩阵之一的乘积，然后将下采样图像确定为中间矩阵和变换的乘积来产生下采样图像矩阵尚未用于确定中间矩阵。

5. 发明申请

US20110170598A1 METHOD AND DEVICE FOR VIDEO ENCODING USING PREDICTED RESIDUALS 有权
标题翻译：使用预测残差视频编码的方法和设备
公开(公告)号：US20110170598A1
公开(公告)日：2011-07-14
申请号：US12684461
申请日：2010-01-08
申请人： Xun Shi , Xiang Yu , Dake He , En-Hui Yang
发明人： Xun Shi , Xiang Yu , Dake He , En-Hui Yang
IPC分类号： H04N7/26
CPC分类号： H04N19/109 , H04N19/147 , H04N19/176 , H04N19/52 , H04N19/61
摘要： An encoder for encoding a video by performing motion estimation using predicted residuals in the rate-distortion cost expression. The predicted residuals are determined by finding a predicted motion vector with respect to the original reference frame and calculating the corresponding residual values. The actual motion vector is then selected based on minimization of the rate-distortion cost expression with respect to the reconstructed reference frame, where the rate-distortion cost expression includes the predicted residuals. In particular, the cost expression includes reconstructed predicted residuals within the distortion term.
摘要翻译：一种用于通过使用速率失真成本表达式中的预测残差执行运动估计来对视频进行编码的编码器。通过找到关于原始参考帧的预测运动矢量并计算相应的残差来确定预测残差。然后基于相对于重构的参考帧的速率失真成本表达式的最小化来选择实际运动矢量，其中速率失真成本表达式包括预测的残差。特别地，成本表达式包括在失真项内的重建的预测残差。

6. 发明授权

US08451912B2 Method and system for optimizing quantization for noisy channels 有权
标题翻译：用于优化噪声通道量化的方法和系统
公开(公告)号：US08451912B2
公开(公告)日：2013-05-28
申请号：US13463967
申请日：2012-05-04
申请人： En-Hui Yang , Haiquan Wang , Xiang Yu
发明人： En-Hui Yang , Haiquan Wang , Xiang Yu
IPC分类号： H04B14/04
CPC分类号： H04L1/0014 , H03M7/3082 , H04L1/0042
摘要： Methods are described for configuring a quantizer to achieve improved end-to-end distortion performance when transmitting encoded source data over a noisy channel. The codebook and partitioning are selected using an iterative process of determining an updated codebook and an updated partition space, where the updated codebook is based, in part, on the average symbol error probability of the channel. Complete knowledge of the transitional probabilities of the channel is not required. Variants of the iterative process are described.
摘要翻译：描述了用于配置量化器以在通过有噪声通道发送编码的源数据时实现改进的端到端失真性能的方法。使用确定更新的码本和更新的分区空间的迭代过程来选择码本和划分，其中更新的码本部分地基于信道的平均符号错误概率。不需要完全了解频道的过渡概率。描述迭代过程的变体。

7. 发明授权

US08233703B2 Method and device for selecting transform matrices for down-sampling DCT image using learning with forgetting algorithm 有权
标题翻译：用于使用遗忘算法学习选择用于下采样DCT图像的变换矩阵的方法和装置
公开(公告)号：US08233703B2
公开(公告)日：2012-07-31
申请号：US13167880
申请日：2011-06-24
申请人： Xiang Yu , En-hui Yang , Haiquan Wang
发明人： Xiang Yu , En-hui Yang , Haiquan Wang
IPC分类号： G06K9/62
CPC分类号： H04N19/625 , G06T3/4084 , H04N19/13 , H04N19/40 , H04N19/48 , H04N19/59 , H04N19/60
摘要： Down-sampling of an image may be performed in the DCT domain. A multiple layered network is used to select transform matrices for down-sampling a DCT image of size M×N to a DCT image of size I×J. A spatial domain down-sampling method is selected and applied to the DCT image to produce a down-sampled DCT reference image. A learning with forgetting algorithm is used to apply a decay to the elements of the transform matrix and select a transform matrices which solve an optimization problem. The optimization problem is a function of the visual quality of images obtained using the transform matrices and the computational complexity associated with using the transform matrices. The visual quality is a measure of the difference between the down-sampled DCT image obtained using the transform matrices and the visual quality of the DCT reference image obtained using a spatial domain down-sampling method.
摘要翻译：可以在DCT域中执行图像的下采样。使用多层网络来选择用于将尺寸为M×N的DCT图像下采样到DCT大小为I×J的DCT图像的变换矩阵。选择空间域下采样方法并将其应用于DCT图像以产生下采样DCT参考图像。使用遗忘算法的学习对变换矩阵的元素应用衰减，并选择解决优化问题的变换矩阵。优化问题是使用变换矩阵获得的图像的视觉质量和与使用变换矩阵相关联的计算复杂度的函数。视觉质量是使用变换矩阵获得的下采样DCT图像与使用空间域下采样方法获得的DCT参考图像的视觉质量之间的差的度量。

8. 发明申请

US20120063691A1 METHODS AND DEVICES FOR DATA COMPRESSION WITH ADAPTIVE FILTERING IN THE TRANSFORM DOMAIN 有权
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：US20120063691A1
公开(公告)日：2012-03-15
申请号：US13232057
申请日：2011-09-14
申请人： Xiang Yu , Dake He , En-Hui Yang
发明人： Xiang Yu , Dake He , En-Hui Yang
IPC分类号： G06K9/36
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。

9. 发明申请

US20120014435A1 Soft Decision and Iterative Video Coding for MPEG and H.264 有权
标题翻译：用于MPEG和H.264的软判决和迭代视频编码
公开(公告)号：US20120014435A1
公开(公告)日：2012-01-19
申请号：US13244751
申请日：2011-09-26
申请人： En-hui Yang , Xiang Yu
发明人： En-hui Yang , Xiang Yu
IPC分类号： H04N7/26
CPC分类号： H04N19/00781 , H04N19/103 , H04N19/147 , H04N19/61
摘要： A method of encoding video data using soft decision quantization makes use of iterative encoding to provide the ability to optimize encoding across different functional elements in a hybrid video encoder. Iterative encoding is used to allow quantization step size, motion prediction and quantization levels to be optimized despite their interrelated nature.
摘要翻译：使用软判决量化对视频数据进行编码的方法使用迭代编码来提供在混合视频编码器中跨越不同功能元件优化编码的能力。迭代编码用于允许量化步长，运动预测和量化级别尽可能优化，尽管它们具有相互关联的性质。

10. 发明申请

US20110249722A1 METHOD AND DEVICE FOR SELECTING TRANSFORM MATRICES FOR DOWN-SAMPLING DCT IMAGE USING LEARNING WITH FORGETTING ALGORITHM 有权
标题翻译：用于使用激励算法学习的用于选择用于下采样DCT图像的变换矩阵的方法和装置
公开(公告)号：US20110249722A1
公开(公告)日：2011-10-13
申请号：US13167880
申请日：2011-06-24
申请人： Xiang Yu , En-hui Yang , Haiquan Wang
发明人： Xiang Yu , En-hui Yang , Haiquan Wang
IPC分类号： H04N11/02
CPC分类号： H04N19/625 , G06T3/4084 , H04N19/13 , H04N19/40 , H04N19/48 , H04N19/59 , H04N19/60
摘要： Down-sampling of an image may be performed in the DCT domain. A multiple layered network is used to select transform matrices for down-sampling a DCT image of size M×N to a DCT image of size I×J. A spatial domain down-sampling method is selected and applied to the DCT image to produce a down-sampled DCT reference image. A learning with forgetting algorithm is used to apply a decay to the elements of the transform matrix and select a transform matrices which solve an optimization problem. The optimization problem is a function of the visual quality of images obtained using the transform matrices and the computational complexity associated with using the transform matrices. The visual quality is a measure of the difference between the down-sampled DCT image obtained using the transform matrices and the visual quality of the DCT reference image obtained using a spatial domain down-sampling method.
摘要翻译：可以在DCT域中执行图像的下采样。使用多层网络来选择用于将尺寸为M×N的DCT图像下采样到DCT大小为I×J的DCT图像的变换矩阵。选择空间域下采样方法并将其应用于DCT图像以产生下采样DCT参考图像。使用遗忘算法的学习对变换矩阵的元素应用衰减，并选择解决优化问题的变换矩阵。优化问题是使用变换矩阵获得的图像的视觉质量和与使用变换矩阵相关联的计算复杂度的函数。视觉质量是使用变换矩阵获得的下采样DCT图像与使用空间域下采样方法获得的DCT参考图像的视觉质量之间的差的度量。

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