公开(公告)号：USRE48564E1

公开(公告)日：2021-05-18

申请号：US16367741

申请日：2019-03-28

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

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

摘要： Provided is an image decoding apparatus that restores a quantized transform block by inversely scanning 1D quantized coefficients, inversely quantizes the quantized transform block using a quantization step size, inversely transforms the transform block to generate a residual block, and generates a prediction block according to an 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, and the plurality of sub-blocks and coefficients of each sub-block are scanned using a same scan pattern determined according to the intra prediction mode. When the intra prediction mode is a horizontal mode, the scan pattern is a vertical scan.

公开(公告)号：US10116958B2

公开(公告)日：2018-10-30

申请号：US15365377

申请日：2016-11-30

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/51 ,  H04N19/52 ,  H04N19/56 ,  H04N19/61 ,  H04N19/107 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/13 ,  H04N19/159 ,  H04N19/126 ,  H04N19/129 ,  H04N19/91 ,  H04N19/105 ,  H04N19/11

摘要： Provided is an apparatus for encoding a moving picture that determines a quantization step size of a previous coding block according to scan order as the quantization step size predictor of the current coding block when a quantization step size of a left coding block of a current coding block and a quantization step size of an above coding block of the current coding block are unavailable and determines an available motion vector encountered first when retrieving motion vectors in the order of motion vector of a first predetermined position and motion vector of a second predetermined position in a reference picture as a temporal motion vector candidate. Therefore, it is possible to reduce the amount of coding bits required to encode motion information and the quantization step size of the current prediction block.

公开(公告)号：US10063854B2

公开(公告)日：2018-08-28

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： H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  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：US10015516B2

公开(公告)日：2018-07-03

申请号：US15365491

申请日：2016-11-30

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/52 ,  H04N19/56 ,  H04N19/51 ,  H04N19/61 ,  H04N19/107 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/13 ,  H04N19/159 ,  H04N19/126 ,  H04N19/129 ,  H04N19/91 ,  H04N19/105 ,  H04N19/11

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/56 ,  H04N19/61 ,  H04N19/91

摘要： Provided is an apparatus for encoding a moving picture that determines a quantization step size of a previous coding block according to scan order as the quantization step size predictor of the current coding block when a quantization step size of a left coding block of a current coding block and a quantization step size of an above coding block of the current coding block are unavailable and determines an available motion vector encountered first when retrieving motion vectors in the order of motion vector of a first predetermined position and motion vector of a second predetermined position in a reference picture as a temporal motion vector candidate. Therefore, it is possible to reduce the amount of coding bits required to encode motion information and the quantization step size of the current prediction block.

公开(公告)号：US09924187B2

公开(公告)日：2018-03-20

申请号：US15189561

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 ,  H04N19/463 ,  H04N19/176 ,  H04N19/593 ,  H04N19/44 ,  H04N19/11 ,  H04N19/80 ,  H04N19/70 ,  H04N19/182 ,  H04N19/13 ,  H04N19/124

CPC分类号： H04N19/463 ,  H04N19/11 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

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：US20170302923A9

公开(公告)日：2017-10-19

申请号：US15189273

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： H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  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：US09615094B2

公开(公告)日：2017-04-04

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

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 according to the intra prediction 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 an intra prediction mode having a direction of 45° with reference to a horizontal mode than the second directional intra prediction mode is, are also filtered. The first and the second intra prediction modes exist between the horizontal mode and the intra prediction mode having the direction of 45° with reference to the horizontal mode. The number of intra prediction modes in which the filter is applied increases as the size of the prediction block increases.

公开(公告)号：US20170085901A1

公开(公告)日：2017-03-23

申请号：US15365023

申请日：2016-11-30

申请人： M&K HOLDINGS INC.

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/51 ,  H04N19/139 ,  H04N19/61 ,  H04N19/176 ,  H04N19/56

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/56 ,  H04N19/61 ,  H04N19/91

摘要： Provided is an apparatus for encoding a moving picture that determines a quantization step size of a previous coding block according to scan order as the quantization step size predictor of the current coding block when a quantization step size of a left coding block of a current coding block and a quantization step size of an above coding block of the current coding block are unavailable and determines an available motion vector encountered first when retrieving motion vectors in the order of motion vector of a first predetermined position and motion vector of a second predetermined position in a reference picture as a temporal motion vector candidate. Therefore, it is possible to reduce the amount of coding bits required to encode motion information and the quantization step size of the current prediction block.

公开(公告)号：US09584828B2

公开(公告)日：2017-02-28

申请号：US15067383

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： H04N19/176 ,  H04N7/26 ,  H04N7/32 ,  H04N19/61 ,  H04N19/91 ,  H04N19/11 ,  H04N19/593 ,  H04N19/159 ,  H04N19/117 ,  H04N19/82 ,  H04N19/124 ,  H04N19/129 ,  H04N19/119 ,  H04N19/122 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44

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 encoding apparatus that generates a prediction block according to an intra prediction mode, generates a residual block, transforms the residual block to generate a transform block, quantizes the transform block to generate a quantized transform block, scans the quantized transform block to generate one-dimensional (1D) quantized coefficients, and entropy-codes the 1D quantized coefficients. When a size of the transform block is 8×8, the quantized transform block is divided into a plurality of sub-blocks after quantization of the transform block, the plurality of sub-blocks are scanned using a first scan pattern determined according to the intra prediction mode, and coefficients of each sub-block are scanned using a second scan pattern determined according to the intra prediction mode. The first scan pattern is a scan order applied to the plurality of sub-blocks. The second scan pattern is a scan order applied to the coefficients of each sub-block.

摘要翻译： 本发明提供一种图像编码装置，其根据帧内预测模式生成预测块，生成残差块，变换残差块以生成变换块，量化变换块以生成量化变换块，对量化变换块进行扫描 生成一维（1D）量化系数，并对1D量化系数进行熵编码。 当变换块的大小为8×8时，量化后的变换块在变换块的量化后被划分为多个子块，使用根据帧内确定的第一扫描模式对多个子块进行扫描 使用根据帧内预测模式确定的第二扫描模式来扫描每个子块的预测模式和系数。 第一扫描图案是应用于多个子块的扫描顺序。 第二扫描图案是应用于每个子块的系数的扫描顺序。

公开(公告)号：US09578349B2

公开(公告)日：2017-02-21

申请号：US15067627

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： H04N19/176 ,  H04N7/26 ,  H04N7/32 ,  H04N19/61 ,  H04N19/91 ,  H04N19/11 ,  H04N19/593 ,  H04N19/159 ,  H04N19/117 ,  H04N19/82 ,  H04N19/124 ,  H04N19/129 ,  H04N19/119 ,  H04N19/122 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44

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, and the plurality of sub-blocks and coefficients of each sub-block are scanned using a same scan pattern determined according to the intra prediction mode. When the intra prediction mode is a horizontal mode, the scan pattern is a vertical scan.

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，量化变换块被划分为多个子块，并且使用与根据以下的方式确定的相同的扫描模式来扫描每个子块的多个子块和系数 帧内预测模式。 当帧内预测模式是水平模式时，扫描模式是垂直扫描。