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1. 发明授权

US09232227B2 Codeword space reduction for intra chroma mode signaling for HEVC 有权
标题翻译：用于HEVC的色度模式信号的代码字空间减少
公开(公告)号：US09232227B2
公开(公告)日：2016-01-05
申请号：US13227732
申请日：2011-09-08
申请人： Ehsan Maani , Wei Liu , Lina Dong , Ali Tabatabai
发明人： Ehsan Maani , Wei Liu , Lina Dong , Ali Tabatabai
IPC分类号： H04N19/503 , H04N19/159 , H04N19/13 , H04N19/593 , H04N19/463 , H04N19/186
CPC分类号： H04N19/186 , H04N19/13 , H04N19/159 , H04N19/463 , H04N19/503 , H04N19/593
摘要： Intra prediction is used in state-of-the-art video coding standards such as AVC. The intra prediction modes are coded into the bitstream. Luma and chroma components could potentially have different prediction modes. For chroma components, there are 7 different modes defined in AVC: vertical, horizontal, DC, diagonal directions, and “same as luma”. Statistics show that the “same as luma” mode is frequently used, but in AVC, this mode is encoded using more bits than other modes during entropy coding, therefore the coding efficiency is decreased. Accordingly, a modified binarization/codeword assignment for chroma intra mode signaling is able to be utilized for high efficiency video coding (HEVC), the next generation video coding standard.
摘要翻译：帧内预测用于诸如AVC的最先进的视频编码标准。帧内预测模式被编码到比特流中。亮度和色度分量可能具有不同的预测模式。对于色度分量，在AVC中定义了7种不同的模式：垂直，水平，直流，对角线方向和“与亮度相同”。统计显示，经常使用“与亮度相同”的方式，但在AVC中，在熵编码中，该模式比其他模式更多的位进行编码，因此编码效率降低。因此，用于色度帧内信令的修正二值化/码字分配能够用于下一代视频编码标准中的高效率视频编码（HEVC）。

2. 发明申请

US20120014452A1 MULTI-PARAMETER MOTION FOR EFFICIENT PREDICTION IN VIDEO COMPRESSION 有权
标题翻译：多参数运动在视频压缩中的有效预测
公开(公告)号：US20120014452A1
公开(公告)日：2012-01-19
申请号：US13176124
申请日：2011-07-05
申请人： Ehsan Maani , Wei Liu , Ali Tabatabai
发明人： Ehsan Maani , Wei Liu , Ali Tabatabai
IPC分类号： H04N7/12
CPC分类号： H04N19/52 , H04N19/46 , H04N19/547 , H04N19/56 , H04N19/70
摘要： Motion Compensated Prediction (MCP) has been a key factor in most advanced video compression schemes. For further reduction in the residual signal energy in B-frames, bidirectional prediction where two motion-compensated signals are superimposed has also been utilized in most prior video coding standards such as MPEG-2 or MPEG-4/AVC. Syntax changes and appropriate motion vector prediction that allows efficient use of multi-parameter MCP is described. The prediction signal is constructed by linearly combining the motion-compensated signals from each parameter (or motion vector).
摘要翻译：运动补偿预测（MCP）一直是大多数高级视频压缩方案的关键因素。为了进一步降低B帧中的残留信号能量，在大多数先前的视频编码标准（例如MPEG-2或MPEG-4 / AVC）中也已经使用了叠加两个运动补偿信号的双向预测。描述了允许有效使用多参数MCP的语法改变和适当的运动矢量预测。通过线性组合来自每个参数（或运动矢量）的运动补偿信号来构造预测信号。

3. 发明申请

US20120218443A1 DECODER-DERIVED GEOMETRIC TRANSFORMATIONS FOR MOTION COMPENSATED INTER PREDICTION 有权
标题翻译：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
申请人： Wei Liu , Mohammad Gharavi-Alkhansari , Ehsan Maani , Ali Tabatabai
发明人： Wei Liu , Mohammad Gharavi-Alkhansari , Ehsan Maani , Ali Tabatabai
IPC分类号： H04N5/262 , H04N5/228 , H04N7/26
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。

4. 发明申请

US20120183054A1 CODEWORD SPACE REDUCTION FOR INTRA CHROMA MODE SIGNALING FOR HEVC 有权
标题翻译：用于HEVC的内部色彩模式信号的编码空间减少
公开(公告)号：US20120183054A1
公开(公告)日：2012-07-19
申请号：US13227732
申请日：2011-09-08
申请人： Ehsan Maani , Wei Liu , Lina Dong , Ali Tabatabai
发明人： Ehsan Maani , Wei Liu , Lina Dong , Ali Tabatabai
IPC分类号： H04N7/32
CPC分类号： H04N19/186 , H04N19/13 , H04N19/159 , H04N19/463 , H04N19/503 , H04N19/593
摘要： Intra prediction is used in state-of-the-art video coding standards such as AVC. The intra prediction modes are coded into the bitstream. Luma and chroma components could potentially have different prediction modes. For chroma components, there are 7 different modes defined in AVC: vertical, horizontal, DC, diagonal directions, and “same as luma”. Statistics show that the “same as luma” mode is frequently used, but in AVC, this mode is encoded using more bits than other modes during entropy coding, therefore the coding efficiency is decreased. Accordingly, a modified binarization/codeword assignment for chroma intra mode signaling is able to be utilized for high efficiency video coding (HEVC), the next generation video coding standard.
摘要翻译：帧内预测用于诸如AVC的最先进的视频编码标准。帧内预测模式被编码到比特流中。亮度和色度分量可能具有不同的预测模式。对于色度分量，在AVC中定义了7种不同的模式：垂直，水平，直流，对角线方向和“与亮度相同”。统计显示，经常使用“与亮度相同”的方式，但是在AVC中，在熵编码中，该模式比其他模式更多的位进行编码，因此编码效率降低。因此，用于色度帧内信令的修正二值化/码字分配能够用于下一代视频编码标准中的高效率视频编码（HEVC）。

5. 发明授权

US08908755B2 Multi-parameter motion for efficient prediction in video compression 有权
标题翻译：多参数运动用于视频压缩中的高效预测
公开(公告)号：US08908755B2
公开(公告)日：2014-12-09
申请号：US13176124
申请日：2011-07-05
申请人： Ehsan Maani , Wei Liu , Ali Tabatabai
发明人： Ehsan Maani , Wei Liu , Ali Tabatabai
IPC分类号： H04N7/12 , H04N19/51 , H04N19/46 , H04N7/50
CPC分类号： H04N19/52 , H04N19/46 , H04N19/547 , H04N19/56 , H04N19/70
摘要： Motion Compensated Prediction (MCP) has been a key factor in most advanced video compression schemes. For further reduction in the residual signal energy in B-frames, bidirectional prediction where two motion-compensated signals are superimposed has also been utilized in most prior video coding standards such as MPEG-2 or MPEG-4/AVC. Syntax changes and appropriate motion vector prediction that allows efficient use of multi-parameter MCP is described. The prediction signal is constructed by linearly combining the motion-compensated signals from each parameter (or motion vector).
摘要翻译：运动补偿预测（MCP）一直是大多数高级视频压缩方案的关键因素。为了进一步降低B帧中的残留信号能量，在大多数先前的视频编码标准（例如MPEG-2或MPEG-4 / AVC）中也已经使用了叠加两个运动补偿信号的双向预测。描述了允许有效使用多参数MCP的语法改变和适当的运动矢量预测。通过线性组合来自每个参数（或运动矢量）的运动补偿信号来构造预测信号。

6. 发明授权

US08792549B2 Decoder-derived geometric transformations for motion compensated inter prediction 有权
标题翻译：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
申请人： Wei Liu , Mohammad Gharavi-Alkhansari , Ehsan Maani , Ali Tabatabai
发明人： Wei Liu , Mohammad Gharavi-Alkhansari , Ehsan Maani , Ali Tabatabai
IPC分类号： H04N7/12 , H04N11/04 , H04N11/02
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。

7. 发明授权

US08787444B2 Differential coding of intra directions (DCIC) 失效
标题翻译：内部差分编码（DCIC）
公开(公告)号：US08787444B2
公开(公告)日：2014-07-22
申请号：US13176132
申请日：2011-07-05
申请人： Ehsan Maani , Wei Liu , Ali Tabatabai
发明人： Ehsan Maani , Wei Liu , Ali Tabatabai
IPC分类号： H04N7/32 , H04N7/34 , H04N7/26
CPC分类号： H04N19/00551 , H04N19/463 , H04N19/593
摘要： Spatial domain directional intra prediction has been shown to be very effective to remove the correlation between the pixels in the current block and reconstructed neighbors. In AVC, 8 directional prediction modes (plus the DC prediction mode) are defined. The prediction mode number is signaled to the decoder using a simple predictive coding method. The previous intra prediction methods have two major disadvantages: lack of precision for arbitrary directional patterns and accuracy lack of accuracy to exploit geometric dependency between blocks. To address these issues, a new method accurately predicts the intra directions from reconstructed neighboring pixels and differentially encode the intra directions. This allows a more precise directional prediction without the significant increase in the cost for transmitting the side information.
摘要翻译：已经显示空间域定向帧内预测对于去除当前块中的像素与重建的邻居之间的相关性非常有效。在AVC中，定义了8种方向预测模式（加上DC预测模式）。使用简单的预测编码方法将预测模式信号发送给解码器。以前的帧内预测方法有两个主要缺点：对于任意方向模式缺乏精度，精度缺乏利用块之间的几何依赖关系。为了解决这些问题，一种新的方法准确地预测重建的相邻像素的帧内方向，并对帧内方向进行差分编码。这允许更精确的方向预测，而不会显着增加用于发送侧信息的成本。

8. 发明申请

US20120014443A1 DIFFERENTIAL CODING OF INTRA DIRECTIONS (DCIC) 失效
标题翻译：内部方向的差分编码（DCIC）
公开(公告)号：US20120014443A1
公开(公告)日：2012-01-19
申请号：US13176132
申请日：2011-07-05
申请人： Ehsan Maani , Wei Liu , Ali Tabatabai
发明人： Ehsan Maani , Wei Liu , Ali Tabatabai
IPC分类号： H04N7/32
CPC分类号： H04N19/00551 , H04N19/463 , H04N19/593
摘要： Spatial domain directional intra prediction has been shown to be very effective to remove the correlation between the pixels in the current block and reconstructed neighbors. In AVC, 8 directional prediction modes (plus the DC prediction mode) are defined. The prediction mode number is signaled to the decoder using a simple predictive coding method. The previous intra prediction methods have two major disadvantages: lack of precision for arbitrary directional patterns and accuracy lack of accuracy to exploit geometric dependency between blocks. To address these issues, a new method accurately predicts the intra directions from reconstructed neighboring pixels and differentially encode the intra directions. This allows a more precise directional prediction without the significant increase in the cost for transmitting the side information.
摘要翻译：已经显示空间域定向帧内预测对于去除当前块中的像素与重建的邻居之间的相关性非常有效。在AVC中，定义了8种方向预测模式（加上DC预测模式）。使用简单的预测编码方法将预测模式信号发送给解码器。以前的帧内预测方法有两个主要缺点：对于任意方向模式缺乏精度，精度缺乏利用块之间的几何依赖关系。为了解决这些问题，一种新的方法准确地预测重建的相邻像素的帧内方向，并对帧内方向进行差分编码。这允许更精确的方向预测，而不会显着增加用于发送侧信息的成本。

9. 发明申请

US20120183237A1 System and method for effectively performing an intra prediction procedure 有权
标题翻译：用于有效执行帧内预测过程的系统和方法
公开(公告)号：US20120183237A1
公开(公告)日：2012-07-19
申请号：US12930666
申请日：2011-01-13
申请人： Wei Liu , Mohammad Gharavi-Alkhansari , Ehsan Maani
发明人： Wei Liu , Mohammad Gharavi-Alkhansari , Ehsan Maani
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。

10. 发明申请

US20110188571A1 RECURSIVE ADAPTIVE INTERPOLATION FILTERS (RAIF) 审中-公开
标题翻译：自适应插值滤波器（RAIF）
公开(公告)号：US20110188571A1
公开(公告)日：2011-08-04
申请号：US13018587
申请日：2011-02-01
申请人： Ehsan Maani , Wei Liu
发明人： Ehsan Maani , Wei Liu
IPC分类号： H04N7/32
CPC分类号： H04N19/523 , H04N19/117 , H04N19/61
摘要： Adaptive interpolation filters which are recursively updated based on previously reconstructed images, and which can differ within a single frame as they adapt to spatial changes. An initial set of filters is known within a coding system, including both encoder and decoder. Fractional-pel motion estimation of macroblock is generalized by communicating integer-pel motion vectors and an index to a selected prediction interpolation filter. Prediction filters are updated based on local correlation data comprising auto-correlation data, and/or cross-correlation data.
摘要翻译：自适应内插滤波器，其基于先前重建的图像递归地更新，并且在适应空间变化的情况下在单个帧内可以不同。在编码系统中已知一组初始滤波器，包括编码器和解码器。通过将整数像素运动矢量和索引传送到所选择的预测内插滤波器来推广宏块的分数像素运动估计。基于包括自相关数据和/或互相关数据的局部相关数据来更新预测滤波器。

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