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公开(公告)号：US20120218432A1
公开(公告)日：2012-08-30
申请号：US13036972
申请日：2011-02-28
CPC分类号： H04N19/192 , H04N19/117 , H04N19/147 , H04N19/176 , H04N19/48 , H04N19/593 , H04N19/86
摘要： A recursive adaptive intra smoothing filter for intra-mode video coding is executed using one or more approaches including, but not limited to matrix multiplication, spatial filtering and frequency domain filtering. Matrix multiplication includes initially computing a prediction matrix Pm using training data. After coding a macroblock, Pm is updated for future macroblocks. In the case of applying spatial filtering, the shift invariance problem is reduced by imposing certain constraints on the matrix to be solved. In frequency domain filtering, a transform residual is minimized using DCT-domain filtering.
摘要翻译： 使用包括但不限于矩阵乘法，空间滤波和频域滤波的一种或多种方法来执行用于帧内模式视频编码的递归自适应帧内平滑滤波器。 矩阵乘法包括使用训练数据最初计算预测矩阵Pm。 在对宏块进行编码之后，为未来的宏块更新Pm。 在应用空间滤波的情况下，通过对待解决的矩阵施加一定的约束来减少移位不变性问题。 在频域滤波中，使用DCT域滤波使变换残差最小化。
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2.发明申请公开(公告)号：US20120183237A1
公开(公告)日：2012-07-19
申请号：US12930666
申请日：2011-01-13
IPC分类号： G06K9/36
CPC分类号： H04N19/00042 , H04N19/11 , H04N19/176 , H04N19/42 , H04N19/593
摘要： A system and method for effectively performing an intra prediction procedure with an electronic device includes an encoder that utilizes a delta value comparison procedure to identify optimal delta values for creating optimal predicted blocks of image data corresponding to original blocks of image data. The encoder then utilizes the original blocks and the optimal predicted blocks to generate residual blocks that represent the original blocks in an encoded format. The encoder then generates a bitstream containing the delta value information and the residual block for storage or transmission purposes. A decoder may decode the delta values and the residual block to reconstruct the image block.
摘要翻译： 用于利用电子设备有效地执行帧内预测过程的系统和方法包括编码器，其使用增量值比较过程来识别用于创建与原始图像数据块相对应的图像数据的最佳预测块的最佳增量值。 然后，编码器利用原始块和最佳预测块来生成以编码格式表示原始块的残余块。 然后，编码器生成包含增量值信息和剩余块的比特流，用于存储或传输目的。 解码器可以解码增量值和残差块以重构图像块。
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3.发明授权公开(公告)号：US08811759B2
公开(公告)日：2014-08-19
申请号：US12930666
申请日：2011-01-13
CPC分类号： H04N19/00042 , H04N19/11 , H04N19/176 , H04N19/42 , H04N19/593
摘要： A system and method for effectively performing an intra prediction procedure with an electronic device includes an encoder that utilizes a delta value comparison procedure to identify optimal delta values for creating optimal predicted blocks of image data corresponding to original blocks of image data. The encoder then utilizes the original blocks and the optimal predicted blocks to generate residual blocks that represent the original blocks in an encoded format. The encoder then generates a bitstream containing the delta value information and the residual block for storage or transmission purposes. A decoder may decode the delta values and the residual block to reconstruct the image block.
摘要翻译： 用于利用电子设备有效地执行帧内预测过程的系统和方法包括编码器，其使用增量值比较过程来识别用于创建与原始图像数据块相对应的图像数据的最佳预测块的最佳增量值。 然后，编码器利用原始块和最佳预测块来生成以编码格式表示原始块的残余块。 然后，编码器生成包含增量值信息和剩余块的比特流，用于存储或传输目的。 解码器可以解码增量值和残差块以重构图像块。
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4.发明申请DECODER-DERIVED GEOMETRIC TRANSFORMATIONS FOR MOTION COMPENSATED INTER PREDICTION 有权用于运动补偿预测的解码多项式几何变换公开(公告)号：US20120218443A1
公开(公告)日：2012-08-30
申请号：US13037054
申请日：2011-02-28
CPC分类号： H04N19/395 , H04N19/103 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/51 , H04N19/513
摘要： A method of estimating motion by estimating motion parameters of a complex motion model using reconstructed neighboring pixels of the current block and then applying the estimated motion parameters to the coordinates of the current block to determine motion compensated in a corresponding reference block. The parameters are not transmitted to a decoder and are derived at the decoder side. The encoder only sends a 1-bit control-flag to indicate whether the derived parameters should be used.
摘要翻译： 通过使用当前块的重建相邻像素估计复运动模型的运动参数，然后将所估计的运动参数应用于当前块的坐标以确定在相应参考块中补偿的运动来估计运动的方法。 这些参数不被传送到解码器，并且在解码器侧导出。 编码器只发送一个1位控制标志来指示是否应该使用派生参数。
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公开(公告)号：US20120218440A1
公开(公告)日：2012-08-30
申请号：US13037012
申请日：2011-02-28
CPC分类号： H04N19/154 , H04N19/126 , H04N19/176
摘要： Visually optimized quantization is described herein. Specifically, the visually optimized quantization is for arbitrary block-based transforms such as Mode-Dependent Directional Transform (MDDT). The compression method involves the process of taking a discrete cosine transform of an MDDT basis function, obtaining the frequency weights, and computing the contrast sensitivity function for each of the frequency components. The overall effect of the distortion is calculated by error pooling and the quantization matrix is the inverse proportional of the overall effect.
摘要翻译： 这里描述了视觉优化的量化。 具体地，视觉上优化的量化用于诸如模式相关方向变换（MDDT）的任意的基于块的变换。 压缩方法包括采用MDDT基函数的离散余弦变换，获得频率权重，以及计算每个频率分量的对比度灵敏度函数的过程。 通过误差池计算失真的整体效应，量化矩阵与整体效应成反比。
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公开(公告)号：US20110249739A1
公开(公告)日：2011-10-13
申请号：US13079929
申请日：2011-04-05
IPC分类号： H04N7/32
CPC分类号： H04N19/14 , H04N19/11 , H04N19/176 , H04N19/61
摘要： Enhanced directional prediction apparatus and methods are taught which are based on edge-based adaptive directional estimation, for providing an improved prediction direction for intra prediction within a coding device. Image gradient vectors are obtained for pixels in the neighborhood of the current block, and edge directions determined. Candidate edge directions are processed to derive a dominant edge direction in response to defining an objective function as a summation of projections to a candidate direction and computing suggested direction of each neighboring pixel. The dominant edge direction may be utilized for the prediction direction, such as in response to a detection mode flag signaled to the decoder, or modified by an angular adjustment, which can be communicated to a decoder.
摘要翻译： 教导了基于边缘自适应方向估计的增强方向预测装置和方法，用于为编码装置内的帧内预测提供改进的预测方向。 为当前块的邻域中的像素获得图像梯度向量，并确定边缘方向。 响应于将目标函数定义为候选方向的投影的总和并计算每个相邻像素的建议方向，处理候选边缘方向以导出主导边缘方向。 主导边缘方向可以用于预测方向，诸如响应于向信号通知解码器的检测模式标志，或通过角度调整进行修改，其可被传送到解码器。
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7.发明授权Decoder-derived geometric transformations for motion compensated inter prediction 有权用于运动补偿帧间预测的解码器导出的几何变换公开(公告)号：US08792549B2
公开(公告)日：2014-07-29
申请号：US13037054
申请日：2011-02-28
CPC分类号： H04N19/395 , H04N19/103 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/51 , H04N19/513
摘要： A method of estimating motion by estimating motion parameters of a complex motion model using reconstructed neighboring pixels of the current block and then applying the estimated motion parameters to the coordinates of the current block to determine motion compensated in a corresponding reference block. The parameters are not transmitted to a decoder and are derived at the decoder side. The encoder only sends a 1-bit control-flag to indicate whether the derived parameters should be used.
摘要翻译： 通过使用当前块的重建相邻像素估计复运动模型的运动参数，然后将所估计的运动参数应用于当前块的坐标以确定在相应参考块中补偿的运动来估计运动的方法。 这些参数不被传送到解码器，并且在解码器侧导出。 编码器只发送一个1位控制标志来指示是否应该使用派生参数。
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公开(公告)号：US08743957B2
公开(公告)日：2014-06-03
申请号：US13079929
申请日：2011-04-05
CPC分类号： H04N19/14 , H04N19/11 , H04N19/176 , H04N19/61
摘要： Enhanced directional prediction apparatus and methods are taught which are based on edge-based adaptive directional estimation, for providing an improved prediction direction for intra prediction within a coding device. Image gradient vectors are obtained for pixels in the neighborhood of the current block, and edge directions determined. Candidate edge directions are processed to derive a dominant edge direction in response to defining an objective function as a summation of projections to a candidate direction and computing suggested direction of each neighboring pixel. The dominant edge direction may be utilized for the prediction direction, such as in response to a detection mode flag signaled to the decoder, or modified by an angular adjustment, which can be communicated to a decoder.
摘要翻译： 教导了基于边缘自适应方向估计的增强方向预测装置和方法，用于为编码装置内的帧内预测提供改进的预测方向。 为当前块的邻域中的像素获得图像梯度向量，并确定边缘方向。 响应于将目标函数定义为候选方向的投影的总和并计算每个相邻像素的建议方向，处理候选边缘方向以导出主导边缘方向。 主导边缘方向可以用于预测方向，诸如响应于向信号通知解码器的检测模式标志，或通过角度调整进行修改，其可被传送到解码器。
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公开(公告)号：US08442338B2
公开(公告)日：2013-05-14
申请号：US13037012
申请日：2011-02-28
IPC分类号： G06K9/00
CPC分类号： H04N19/154 , H04N19/126 , H04N19/176
摘要： Visually optimized quantization is described herein. Specifically, the visually optimized quantization is for arbitrary block-based transforms such as Mode-Dependent Directional Transform (MDDT). The compression method involves the process of taking a discrete cosine transform of an MDDT basis function, obtaining the frequency weights, and computing the contrast sensitivity function for each of the frequency components. The overall effect of the distortion is calculated by error pooling and the quantization matrix is the inverse proportional of the overall effect.
摘要翻译： 这里描述了视觉优化的量化。 具体地，视觉上优化的量化用于诸如模式相关方向变换（MDDT）的任意的基于块的变换。 压缩方法包括采用MDDT基函数的离散余弦变换，获得频率权重，以及计算每个频率分量的对比度灵敏度函数的过程。 通过误差池计算失真的整体效应，量化矩阵与整体效应成反比。
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10.发明申请DUAL-MODE COMPRESSION OF IMAGES AND VIDEOS FOR RELIABLE REAL-TIME TRANSMISSION 有权图像的双模式压缩和可靠的实时传输视频公开(公告)号：US20100309984A1
公开(公告)日：2010-12-09
申请号：US12792408
申请日：2010-06-02
摘要： Dual-mode compression of images/videos for reliable real-time transmission includes a scalable block-based video compression. The method provides graceful quality degradations in case of channel bandwidth changes. Prediction for encoding is avoided, and the process is less complex with less memory requirements. The method involves processing each block independently with the advantage that errors are not able to propagate beyond current block boundaries. Two different encoding modes are used, natural image coding for acquired images and graphics coding for computer generated images. The proper encoding mode is chosen by comparing performance of the two modes for a particular block to be encoded. An embedded bitstream is generated by the encoder in accordance to the available channel bandwidth.
摘要翻译： 用于可靠实时传输的图像/视频的双模式压缩包括可扩展的基于块的视频压缩。 该方法在频道带宽变化的情况下提供优雅的质量下降。 避免编码的预测，并且该过程不太复杂，存储器要求较少。 该方法包括独立地处理每个块，其优点是错误不能传播超出当前块边界。 使用两种不同的编码模式，采集图像的自然图像编码和计算机生成的图像的图形编码。 通过比较要编码的特定块的两种模式的性能来选择适当的编码模式。 嵌入式比特流由编码器根据可用信道带宽生成。
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