公开(公告)号：US20160381382A1

公开(公告)日：2016-12-29

申请号：US15259708

申请日：2016-09-08

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/52 ,  H04N19/61 ,  H04N19/129 ,  H04N19/91 ,  H04N19/105 ,  H04N19/107 ,  H04N19/159 ,  H04N19/124

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/124 ,  H04N19/129 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/91

摘要： Provided is an apparatus for encoding a moving picture. When the current block is coded in intra prediction and a size of the transform block is larger than 4×4, the quantized transform coefficients of the quantized transform block are divided into a plurality of sub-blocks. The plurality of sub-blocks are scanned according to a first scan pattern determined by the intra prediction mode of the current block and the quantized transform coefficients of each sub-block are scanned according to a second scan pattern determined by the intra prediction mode of the current block. The first scan pattern for scanning the plurality of sub-blocks is the same as the second scan pattern for scanning the quantized transform coefficients of each sub-block.

公开(公告)号：US20160381381A1

公开(公告)日：2016-12-29

申请号：US15259595

申请日：2016-09-08

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/52 ,  H04N19/61 ,  H04N19/129 ,  H04N19/91 ,  H04N19/105 ,  H04N19/107 ,  H04N19/159 ,  H04N19/124

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/124 ,  H04N19/129 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/91

摘要： Provided is an apparatus for encoding a moving picture. When the current block is coded in intra prediction and a size of the transform block is larger than 4×4, the quantized transform coefficients of the quantized transform block are divided into a plurality of sub-blocks. The plurality of sub-blocks are scanned according to a first scan pattern determined by the intra prediction mode of the current block and the quantized transform coefficients of each sub-block are scanned according to a second scan pattern determined by the intra prediction mode of the current block. The first scan pattern for scanning the plurality of sub-blocks is the same as the second scan pattern for scanning the quantized transform coefficients of each sub-block.

公开(公告)号：US20160309167A1

公开(公告)日：2016-10-20

申请号：US15189521

申请日：2016-06-22

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/159 ,  H04N19/176 ,  H04N19/11 ,  H04N19/124 ,  H04N19/13 ,  H04N19/70 ,  H04N19/182 ,  H04N19/80

CPC分类号： H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H05K999/99

摘要： Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US20160309164A1

公开(公告)日：2016-10-20

申请号：US15189346

申请日：2016-06-22

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/159 ,  H04N19/117 ,  H04N19/176 ,  H04N19/44 ,  H04N19/13 ,  H04N19/12 ,  H04N19/61 ,  H04N19/182 ,  H04N19/124

CPC分类号： H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H05K999/99

摘要： Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US09473789B2

公开(公告)日：2016-10-18

申请号：US15062422

申请日：2016-03-07

申请人： M & K HOLDINGS INC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/52 ,  H04N19/513 ,  H04N19/44 ,  H04N19/105 ,  H04N19/107 ,  H04N19/503 ,  H04N19/176 ,  H04N19/134 ,  H04N19/129 ,  H04N19/593 ,  H04N19/18 ,  H04N19/91

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/129 ,  H04N19/134 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/503 ,  H04N19/513 ,  H04N19/593 ,  H04N19/91

摘要： Provided is an apparatus for decoding a moving picture. An entropy decoding unit restores a quantization coefficient sequence from a bitstream. An inverse quantization/transform unit generates a residual block. An inter prediction unit generates a prediction block of a current block based on motion vector information. When the prediction block is encoded in skip mode, motion information of the current block is restored using an available spatial or temporal skip candidate and the prediction block of the current block is generated using the motion information. The temporal skip candidate includes a reference picture index and a motion vector, the reference picture index of the temporal skip candidate is set to 0, and a motion vector of the temporal skip candidate is a motion vector of the temporal skip candidate in a temporal skip candidate picture. A scan pattern for inversely scanning the plurality of subsets is the same as a scan pattern for inversely scanning coefficients of each subset. The quantization step size is generated by adding a quantization step size predictor and a remaining quantization step size predictor.

摘要翻译： 提供了一种用于对运动图像进行解码的装置。 熵解码单元从比特流恢复量化系数序列。 逆量化/变换单元产生残差块。 帧间预测单元基于运动矢量信息生成当前块的预测块。 当以跳过模式编码预测块时，使用可用的空间或时间跳过候选来恢复当前块的运动信息，并且使用运动信息生成当前块的预测块。 时间跳跃候选包括参考图像索引和运动矢量，时间跳跃候选的参考图像索引被设置为0，并且时间跳跃候选的运动矢量是时间跳跃候选的运动矢量 候选人图片。 用于反向扫描多个子集的扫描图案与用于反向扫描每个子集的系数的扫描图案相同。 通过将量化步长预测器和剩余的量化步长预测器相加来生成量化步长。

公开(公告)号：US20160198185A1

公开(公告)日：2016-07-07

申请号：US15067553

申请日：2016-03-11

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/159 ,  H04N19/61 ,  H04N19/18 ,  H04N19/124 ,  H04N19/122 ,  H04N19/117 ,  H04N19/82 ,  H04N19/182 ,  H04N19/176 ,  H04N19/44 ,  H04N19/129

CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91

摘要： Provided is an image decoding apparatus that receives an intra prediction mode and one-dimensional (1D) quantized coefficients, restores a quantized transform block by inversely scanning the 1D quantized coefficients, inversely quantizes the quantized transform block using a quantization step size to generate a transform block, inversely transforms the transform block to generate a residual block, and generates a prediction block according to the intra prediction mode. When a size of the transform block is 8×8, the quantized transform block is divided into a plurality of sub-blocks, the plurality of sub-blocks are scanned and coefficients of each sub-block are scanned using a scan pattern determined according to the intra prediction mode. The scan pattern for scanning the plurality of sub-blocks is the same with the scan pattern for scanning non-zero coefficients of each sub-block. Furthermore, the apparatus generates reference pixels using available reference pixels when reference pixels do not exist, adaptively filters reference pixels based on the intra prediction mode and size information of the prediction block, and generates the prediction block.

摘要翻译： 提供了一种图像解码装置，其接收帧内预测模式和一维（1D）量化系数，通过对1D量化系数进行逆扫描来恢复量化变换块，使用量化步长对量化变换块进行逆量化，生成变换 块，逆变换变换块以产生残差块，并根据帧内预测模式生成预测块。 当变换块的大小为8×8时，量化的变换块被划分为多个子块，扫描多个子块，并且使用根据 帧内预测模式。 用于扫描多个子块的扫描图案与用于扫描每个子块的非零系数的扫描图案相同。 此外，当参考像素不存在时，该装置使用可用的参考像素生成参考像素，基于预测块的帧内预测模式和尺寸信息自适应地过滤基准像素，并且生成预测块。

公开(公告)号：US20160191944A1

公开(公告)日：2016-06-30

申请号：US15062534

申请日：2016-03-07

申请人： M & K HOLDINGS INC

发明人： Soo Mi Oh

IPC分类号： H04N19/52 ,  H04N19/593 ,  H04N19/513 ,  H04N19/105 ,  H04N19/91 ,  H04N19/129 ,  H04N19/134 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/503 ,  H04N19/107

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/129 ,  H04N19/134 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/503 ,  H04N19/513 ,  H04N19/593 ,  H04N19/91

摘要： Provided is a method for decoding a moving picture. The method has the steps of generating a prediction block of a current block and generating a residual block of the current block. To generate the prediction block, a reference picture index and motion vector difference of the current block are obtained from a received bit stream, and spatial and temporal motion vector candidates are derived to construct a motion vector candidate list. A motion vector candidate corresponding to a motion vector index is determined as a motion vector predictor, and a motion vector of the current prediction unit is restored to generate a prediction block or the current block. Therefore, the motion vector encoded effectively using spatial and temporal motion vector candidates is correctly recovered and the complexity of a decoder is reduced.

摘要翻译： 提供了一种用于对运动图像进行解码的方法。 该方法具有生成当前块的预测块并产生当前块的残余块的步骤。 为了产生预测块，从接收到的比特流中获得当前块的参考图像索引和运动矢量差，导出空间和时间运动矢量候选以构成运动矢量候选列表。 对应于运动矢量索引的运动矢量候选被确定为运动矢量预测器，并且恢复当前预测单元的运动矢量以产生预测块或当前块。 因此，使用空间和时间运动矢量候选有效地编码的运动矢量被正确恢复，并且解码器的复杂度降低。

公开(公告)号：US20160057449A1

公开(公告)日：2016-02-25

申请号：US14929544

申请日：2015-11-02

申请人： M & K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/593 ,  H04N19/82 ,  H04N19/182 ,  H04N19/176 ,  H04N19/117

CPC分类号： H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/157 ,  H04N19/17 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91

摘要： Provided is an intra prediction apparatus that adaptively filters reference pixels according to an intra prediction mode and a size of a prediction block, and generates the prediction block using reference pixels determined by the intra prediction mode. The reference pixels are adaptively filtered according to the size of the prediction block for intra prediction modes existing between a horizontal mode and an intra prediction mode having a direction of 45° with reference to the horizontal mode. When the reference pixels for a second directional intra prediction mode are filtered, the reference pixels for a first directional intra prediction mode, that is closer to the intra prediction mode having the direction of 45° with reference to the horizontal mode than the second directional intra prediction mode is, are also filtered. The number of intra prediction modes in which the filter is applied increases as the size of the prediction block increases. Accordingly, an image compression ratio can be improved.

摘要翻译： 提供一种帧内预测装置，其根据帧内预测模式和预测块的大小自适应地对参考像素进行滤波，并且使用由帧内预测模式确定的参考像素来生成预测块。 参考像素根据预测块的尺寸自适应地进行滤波，用于参考水平模式在水平模式和具有45°方向的帧内预测模式之间存在的帧内预测模式。 当对第二定向帧内预测模式的参考像素进行滤波时，参考第二方向帧内预测模式的第一方向帧内预测模式的参考像素比第二定向帧内参考水平模式更接近具有45°方向的帧内预测模式 预测模式是，也被过滤。 应用滤波器的帧内预测模式的数量随着预测块的大小增加而增加。 因此，可以提高图像压缩率。

公开(公告)号：US20160057427A1

公开(公告)日：2016-02-25

申请号：US14929685

申请日：2015-11-02

申请人： M & K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/124 ,  H04N19/182 ,  H04N19/176 ,  H04N19/61 ,  H04N19/91 ,  H04N19/13 ,  H04N19/50

CPC分类号： H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/157 ,  H04N19/17 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91

摘要： Provided is an apparatus for encoding an image that adaptively filters reference pixels according to an intra prediction mode and a size of a prediction block, and generates the prediction block using reference pixels determined by the intra prediction mode. The reference pixels are adaptively filtered according to the size of the prediction block for intra prediction modes existing between a horizontal mode and an intra prediction mode having a direction of 45° with reference to the horizontal mode. When the reference pixels for a second directional intra prediction mode are filtered, the reference pixels for a first directional intra prediction mode, that is closer to the intra prediction mode having the direction of 45° with reference to the horizontal mode than the second directional intra prediction mode is, are also filtered. The plurality of sub-blocks and non-zero coefficients of each sub-block are scanned according to a scan pattern and the scan pattern for scanning the plurality of sub-blocks and for scanning the non-zero coefficients of each sub-block is determined by the intra prediction mode of the prediction block. Accordingly, an image compression ratio can be improved.

摘要翻译： 提供了一种用于对根据帧内预测模式和预测块的大小自适应地过滤参考像素的图像编码的装置，并且使用由帧内预测模式确定的参考像素来生成预测块。 参考像素根据预测块的尺寸自适应地进行滤波，用于参考水平模式在水平模式和具有45°方向的帧内预测模式之间存在的帧内预测模式。 当对第二定向帧内预测模式的参考像素进行滤波时，参考第二方向帧内预测模式的第一方向帧内预测模式的参考像素比第二定向帧内参考水平模式更接近具有45°方向的帧内预测模式 预测模式是，也被过滤。 根据扫描图案扫描每个子块的多个子块和非零系数，并且确定用于扫描多个子块并用于扫描每个子块的非零系数的扫描图案 通过预测块的帧内预测模式。 因此，可以提高图像压缩率。

公开(公告)号：US20160057422A1

公开(公告)日：2016-02-25

申请号：US14929534

申请日：2015-11-02

申请人： M & K HOLDINGS INC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/124 ,  H04N19/182 ,  H04N19/50 ,  H04N19/44 ,  H04N19/91 ,  H04N19/176 ,  H04N19/117 ,  H04N19/13 ,  H04N19/61

CPC分类号： H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/157 ,  H04N19/17 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91

摘要： Provided is an apparatus for decoding an image that adaptively filters reference pixels according to an intra prediction mode and a size of a prediction block, and generates the prediction block using reference pixels determined by the intra prediction mode. The reference pixels are adaptively filtered according to the size of the prediction block for intra prediction modes existing between a horizontal mode and an intra prediction mode having a direction of 45° with reference to the horizontal mode. When the reference pixels for a second directional intra prediction mode are filtered, the reference pixels for a first directional intra prediction mode, that is closer to the intra prediction mode having the direction of 45° with reference to the horizontal mode than the second directional intra prediction mode is, are also filtered. The number of intra prediction modes in which the filter is applied increases as the size of the prediction block increases. Accordingly, an image compression ratio can be improved.