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81. 发明申请

US20120106622A1 Method and Apparatus of Slice Grouping for High Efficiency Video Coding 审中-公开
标题翻译：用于高效率视频编码的片段分组方法和装置
公开(公告)号：US20120106622A1
公开(公告)日：2012-05-03
申请号：US12984727
申请日：2011-01-05
申请人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Shaw-Min Lei
发明人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/426 , H04N19/129 , H04N19/14 , H04N19/174
摘要： In the H.264/AVC standard, one of the new characteristics is the possibility of dividing an image in regions called slice groups. The use of slice groups provides various possible advantages such as prioritized transmission, error resilient transmission, and etc. The slice groups can be formed by flexible macroblock ordering (FMO), where each picture can be divided into slice groups in different scan patterns of the macroblocks. In the high efficiency video coding (HEVC) under development, a more flexible block structure, called coding unit (CU), is used as the unit to process video data. The picture is first divided into largest CUs (LCUs) and each LCU is adaptively split into smaller CUs using a quadtree until leaf CUs are reached. In the current HEVC development, there is neither slice nor slice group structure being considered. The LCU size used for HEVC is 16 times as large as the macroblock size used in the H.264/AVC standard. Therefore, it is very desirable to develop slice and slice group structure suited for HEVC to offer various benefits of error resilience, parallel processing, reduced line (row) buffer requirement, and etc. Accordingly, slice group types including raster scan type, vertical stripe type, regions of interest type and full flexibility type are developed for HEVC. Furthermore, various syntax elements are incorporated in the sequence header or the picture header to convey information associated with the slice group structure.
摘要翻译：在H.264 / AVC标准中，新特性之一是在称为片组的区域中划分图像的可能性。切片组的使用提供了各种可能的优点，例如优先传输，错误弹性传输等。切片组可以通过灵活的宏块排序（FMO）形成，其中每个图像可以被分成不同扫描模式的切片组宏块。在正在开发的高效率视频编码（HEVC）中，使用称为编码单元（CU）的更灵活的块结构作为处理视频数据的单元。该图片首先划分为最大的CU（LCU），并且使用四叉树将每个LCU自适应地分割成较小的CU，直到达到叶CU。在目前的HEVC开发中，既没有考虑切片也没有切片组结构。用于HEVC的LCU大小是H.264 / AVC标准中使用的宏块尺寸的16倍。因此，非常希望开发适用于HEVC的切片和切片组结构，以提供错误恢复，并行处理，减少线（行）缓冲器要求等各种优点。因此，包括光栅扫描类型，垂直条纹类型，兴趣类型和全柔性类型为HEVC开发。此外，各种语法元素被并入到序列头或图像头中以传送与切片组结构相关联的信息。

82. 发明申请

US20120082244A1 Method and Apparatus of Region-Based Adaptive Loop Filtering 有权
标题翻译：基于区域的自适应环路滤波的方法和装置
公开(公告)号：US20120082244A1
公开(公告)日：2012-04-05
申请号：US13177343
申请日：2011-07-06
申请人： Ching-Yeh Chen , Chih-Ming Fu , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Ching-Yeh Chen , Chih-Ming Fu , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/00103 , H04N19/117 , H04N19/127 , H04N19/147 , H04N19/17 , H04N19/82
摘要： In a block-based motion compensated system, coding noises may arise due to lossy operations. Adaptive loop filter (ALF) is a technique used to improve the quality. A pixel adaptive (PA) ALF method was developed that uses the Sum-modified Laplacian Measure (SLM) to classify pixels and applies a respective ALF filter to each pixel according to the SLM. While the PA ALF achieves better performance over a conventional single filter (SF) based ALF, the PA ALF causes higher complexity and consumes more power due to the high complexity and per-pixel filter switching. Accordingly region based ALF scheme is disclosed which allows adaptive filter selection on a region by region basis and does not require per-pixel filter switching. In one embodiment according to the present invention, a picture is divided into M×N regions. The region based ALF also allows region merging for the M×N regions to improve performance. In another aspect of the present invention, the optimal ALF design also takes into consideration of the system complexity by using rate-distortion-complexity optimization (RDCO). The RDCO technique is also applied to sample adaptive offset (SAO) design.
摘要翻译：在基于块的运动补偿系统中，由于有损操作可能会产生编码噪声。自适应环路滤波器（ALF）是一种用于提高质量的技术。开发了像素自适应（PA）ALF方法，其使用Sum-Modified Laplacian Measure（SLM）对像素进行分类，并根据SLM对每个像素应用相应的ALF滤波器。虽然PA ALF比传统的基于单滤波器（SF）的ALF具有更好的性能，但是由于高复杂性和每像素滤波器切换，PA ALF导致更高的复杂度并且消耗更多的功率。公开了基于区域的ALF方案，其允许在逐个区域的基础上进行自适应滤波器选择，并且不需要每像素滤波器切换。在根据本发明的一个实施例中，图片被分成M×N个区域。基于区域的ALF还允许区域合并M×N区域以提高性能。在本发明的另一方面，最佳ALF设计还通过使用速率 - 失真 - 复杂度优化（RDCO）来考虑系统的复杂性。 RDCO技术也适用于采样自适应偏移（SAO）设计。

83. 发明申请

US20110222608A1 LOCALIZED IN-LOOP FILTERING WITH MULTIPLE FILTERS IN HYBRID VIDEO CODING 审中-公开
标题翻译：在混合视频编码中使用多个滤波器进行本地化的环路滤波
公开(公告)号：US20110222608A1
公开(公告)日：2011-09-15
申请号：US12997879
申请日：2010-11-23
申请人： Yongying Gao , Yu-Wen Huang , Shaw-Min Lei
发明人： Yongying Gao , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/96
摘要： A method for coding a parent block of video data includes: reconstructing the parent block for prediction; providing at least two filters for filtering the parent block after reconstructing the parent block; dividing the parent block into block partitions, wherein at each block partition determining which of the filters is to be used to filter the block partition; and filtering each of the block partitions with the filter determined accordingly.
摘要翻译：用于编码视频数据的父块的方法包括：重建用于预测的父块; 提供至少两个过滤器，用于在重建父块之后过滤父块; 将所述父块划分成块分区，其中在每个块分区确定要使用哪个过滤器来过滤所述块分区; 并用相应确定的过滤器对每个块分区进行过滤。

84. 发明申请

US20130322527A1 Method and Apparatus for Quantization Level Clipping 有权
标题翻译：用于量化级别剪切的方法和装置
公开(公告)号：US20130322527A1
公开(公告)日：2013-12-05
申请号：US13985779
申请日：2012-12-14
申请人： Xun Guo , Shaw-Min Lei
发明人： Xun Guo , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H03M7/3059 , H04N19/126 , H04N19/132 , H04N19/136 , H04N19/146 , H04N19/18 , H04N19/184 , H04N19/44 , H04N19/60
摘要： A method and apparatus for clipping a transform coefficient are disclosed. Embodiments according to the present invention avoid overflow of the quantized transform coefficient by clipping the quantization level adaptively after quantization. In one embodiment, the method comprises generating the quantization level for the transform coefficient of a transform unit by quantizing the transform coefficient according to a quantization matrix and quantization parameter. The clipping condition is determined and the quantization level is clipped according to the clipping condition to generate a clipping-processed quantization level. The clipping condition includes a null clipping condition. The quantization level is clipped to fixed-range represented in n bits for the null clipping condition, where n correspond to 8, 16, or 32. The quantization level may also be clipped within a range from −m to m−1 for the null clipping condition, where m may correspond to 128, 32768, or 2147483648.
摘要翻译：公开了一种用于剪切变换系数的方法和装置。根据本发明的实施例通过量化后自适应地削减量化电平来避免量化变换系数的溢出。在一个实施例中，该方法包括通过根据量化矩阵和量化参数量化变换系数来产生变换单元的变换系数的量化级。确定剪切条件，并根据剪切条件限制量化级别，以产生削波处理的量化级别。剪切条件包括零剪切条件。量化电平被削减到用于零削波条件的n位表示的固定范围，其中n对应于8,16或32。量化电平也可以在-m至m-1的范围内被修剪为零剪切条件，其中m可以对应于128，32768或2147483648。

85. 发明授权

US08755636B2 Method and apparatus of high-resolution image reconstruction based on multi-frame low-resolution images 有权
标题翻译：基于多帧低分辨率图像的高分辨率图像重建方法和装置
公开(公告)号：US08755636B2
公开(公告)日：2014-06-17
申请号：US13476208
申请日：2012-05-21
申请人： Xinfeng Zhang , Si-Wei Ma , Xun Guo , Shaw-Min Lei
发明人： Xinfeng Zhang , Si-Wei Ma , Xun Guo , Shaw-Min Lei
IPC分类号： G06K9/32
CPC分类号： G06T3/4053
摘要： A method and apparatus for reconstructing a high-resolution image based on multiple low-resolution images are disclosed. The method and apparatus incorporating an embodiment according to the present invention reconstructs the high-resolution image based on a kernel regression method using a modified kernel function. The kernel function takes into consideration of registration reliability of regression residue and rotational motion within the multiple low-resolution images. The registration reliability adjusts weighting on the regression residues according to local gradient estimated between neighboring values. Furthermore, multi-scale regression residue is used to alleviate impact of noise.
摘要翻译：公开了一种基于多个低分辨率图像重建高分辨率图像的方法和装置。结合根据本发明的实施例的方法和装置基于使用修改的内核功能的内核回归方法来重构高分辨率图像。核函数考虑了多个低分辨率图像内的回归残差和旋转运动的配准可靠性。注册可靠性根据相邻值之间估计的局部梯度来调整回归残差的权重。此外，多尺度回归残差用于减轻噪声的影响。

86. 发明授权

US09729879B2 Method and apparatus of deblocking filter 有权
公开(公告)号：US09729879B2
公开(公告)日：2017-08-08
申请号：US13993063
申请日：2012-03-06
申请人： Jicheng An , Xun Guo , Qian Huang , Shaw-Min Lei
发明人： Jicheng An , Xun Guo , Qian Huang , Shaw-Min Lei
IPC分类号： H04N7/26 , H04N7/50 , H04N19/18 , H04N19/117 , H04N19/176 , H04N19/14 , H04N19/86
CPC分类号： H04N19/117 , H04N19/14 , H04N19/176 , H04N19/86
摘要： A method and apparatus for improved deblocking filter are disclosed. In one embodiment according to the present invention, determining the non-zero transform coefficients existence for a PU-only boundary is skipped and therefore the deblocking filter for PU-only boundary is eliminated if the condition of boundary strength equal to 1 is not fulfilled to avoid unnecessary deblocking. In another embodiment of the present invention, three gradients are determined for two pixel lines and filter ON/OFF decision is made based on the three gradient values of the two pixel lines. One aspect of the invention is related to filter strength selection between strong and weak filters. According to one embodiment, the filter strength selection is based on various gradient values of a pixel line across the block boundary. Another aspect of the invention is related to the weak filter.

87. 发明申请

US20130266061A1 Method and Apparatus of Deblocking Filter 有权
标题翻译：去块滤波器的方法和装置
公开(公告)号：US20130266061A1
公开(公告)日：2013-10-10
申请号：US13993063
申请日：2012-03-06
申请人： Jicheng An , Xun Guo , Qian Huang , Shaw-Min Lei
发明人： Jicheng An , Xun Guo , Qian Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/117 , H04N19/14 , H04N19/176 , H04N19/86
摘要： A method and apparatus for improved deblocking filter are disclosed. In one embodiment according to the present invention, determining the non-zero transform coefficients existence for a PU-only boundary is skipped and therefore the deblocking filter for PU-only boundary is eliminated if the condition of boundary strength equal to 1 is not fulfilled to avoid unnecessary deblocking. In another embodiment of the present invention, three gradients are determined for two pixel lines and filter ON/OFF decision is made based on the three gradient values of the two pixel lines. One aspect of the invention is related to filter strength selection between strong and weak filters. According to one embodiment, the filter strength selection is based on various gradient values of a pixel line across the block boundary. Another aspect of the invention is related to the weak filter.
摘要翻译：公开了一种改进的去块滤波器的方法和装置。在根据本发明的一个实施例中，对于仅PU边界确定非零变换系数的存在被跳过，因此如果边界强度等于1的条件不满足于仅用于PU的边界的去块滤波器避免不必要的解锁。在本发明的另一实施例中，针对两个像素线确定三个梯度，并且基于两个像素线的三个梯度值来进行滤波器ON / OFF判定。本发明的一个方面涉及强和弱滤波器之间的滤波强度选择。根据一个实施例，滤波器强度选择基于跨越块边界的像素线的各种梯度值。本发明的另一方面涉及弱滤波器。

88. 发明申请

US20130064472A1 Method and Apparatus of High-Resolution Image Reconstruction Based on Multi-Frame Low-Resolution Images 有权
标题翻译：基于多帧低分辨率图像的高分辨率图像重建方法与装置
公开(公告)号：US20130064472A1
公开(公告)日：2013-03-14
申请号：US13476208
申请日：2012-05-21
申请人： Xinfeng Zhang , Si-Wei Ma , Xun Guo , Shaw-Min Lei
发明人： Xinfeng Zhang , Si-Wei Ma , Xun Guo , Shaw-Min Lei
IPC分类号： G06K9/32
CPC分类号： G06T3/4053
摘要： A method and apparatus for reconstructing a high-resolution image based on multiple low-resolution images are disclosed. The method and apparatus incorporating an embodiment according to the present invention reconstructs the high-resolution image based on a kernel regression method using a modified kernel function. The kernel function takes into consideration of registration reliability of regression residue and rotational motion within the multiple low-resolution images. The registration reliability adjusts weighting on the regression residues according to local gradient estimated between neighboring values. Furthermore, multi-scale regression residue is used to alleviate impact of noise.
摘要翻译：公开了一种基于多个低分辨率图像重建高分辨率图像的方法和装置。结合根据本发明的实施例的方法和装置基于使用修改的内核功能的内核回归方法来重构高分辨率图像。核函数考虑了多个低分辨率图像内的回归残差和旋转运动的配准可靠性。注册可靠性根据相邻值之间估计的局部梯度来调整回归残差的权重。此外，多尺度回归残差用于减轻噪声的影响。

89. 发明授权

US10091515B2 Method and apparatus for intra mode derivation and coding in scalable video coding 有权
公开(公告)号：US10091515B2
公开(公告)日：2018-10-02
申请号：US14378949
申请日：2013-03-11
申请人： Shan Liu , Mei Guo , Tzu-Der Chuang , Shaw-Min Lei
发明人： Shan Liu , Mei Guo , Tzu-Der Chuang , Shaw-Min Lei
IPC分类号： H04N19/34 , H04N19/96 , H04N19/11 , H04N19/463 , H04N19/187 , H04N19/176 , H04N19/157 , H04N19/159
摘要： A method and apparatus of Intra mode coding for a scalable video coding system are disclosed. For a current Intra-coded block in the enhancement layer (EL), predictive coding is applied to the current Intra mode based on the base layer (BL) coding mode associated with the co-located block in the BL and neighboring coding modes associated with neighboring blocks of the current block in the EL. The neighboring blocks of the current block in the EL comprise a left block adjacent to a left side of the current block and a top block adjacent to a top side of the current block. One or more most probable modes (MPMs) can be derived from the neighboring coding modes and the BL coding mode, and the MPMs is then used for predictive coding of the current Intra mode.

90. 发明申请

US20150304670A1 METHOD AND APPARATUS FOR INTRA MODE DERIVATION AND CODING IN SCALABLE VIDEO CODING 审中-公开
标题翻译：用于可扩展视频编码的内部模式衍生和编码的方法和装置
公开(公告)号：US20150304670A1
公开(公告)日：2015-10-22
申请号：US14378949
申请日：2013-03-11
申请人： Shan LIU , Mei GUO , Tzu-Der CHUANG , Shaw-Min LEI
发明人： Shan Liu , Mei Guo , Tzu-Der Chuang , Shaw-Min Lei
IPC分类号： H04N19/34 , H04N19/159 , H04N19/176 , H04N19/11 , H04N19/187
CPC分类号： H04N19/34 , H04N19/11 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/187 , H04N19/463 , H04N19/96
摘要： A method and apparatus of Intra mode coding for a scalable video coding system are disclosed. For a current Intra-coded block in the enhancement layer (EL), predictive coding is applied to the current Intra mode based on the base layer (BL) coding mode associated with the co-located block in the BL and neighboring coding modes associated with neighboring blocks of the current block in the EL. The neighboring blocks of the current block in the EL comprise a left block adjacent to a left side of the current block and a top block adjacent to a top side of the current block. One or more most probable modes (MPMs) can be derived from the neighboring coding modes and the BL coding mode, and the MPMs is then used for predictive coding of the current Intra mode.
摘要翻译：公开了一种用于可分级视频编码系统的帧内编码的方法和装置。对于增强层（EL）中的当前帧内编码块，基于与BL中的同位置块相关联的基本层（BL）编码模式和与其相关联的相邻编码模式，将预测编码应用于当前帧内模式 EL中当前块的相邻块。 EL中的当前块的相邻块包括与当前块的左侧相邻的左块和与当前块的顶侧相邻的顶块。可以从相邻编码模式和BL编码模式导出一个或多个最可能的模式（MPM），然后将MPM用于当前帧内模式的预测编码。

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