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公开(公告)号:US20160381378A1
公开(公告)日:2016-12-29
申请号:US15259430
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 decoding a moving picture. When the current block is coded in intra prediction and a size of the transform block is larger than a predetermined size, a plurality of sub-blocks are restored by applying a first scan pattern determined according to the intra prediction mode of the current block on the quantization coefficient sequence, and the quantized transform block is restored by applying a second scan pattern determined according to the intra prediction mode of the current block on the plurality of sub-blocks. The first scan pattern for restoring the plurality of sub-blocks from the quantization coefficient sequence is the same as the second scan pattern for restoring the quantized transform block from the plurality of sub-blocks.
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公开(公告)号:US09491478B2
公开(公告)日:2016-11-08
申请号:US13624844
申请日:2012-09-21
申请人: Soo Mi Oh , Moonock Yang
发明人: Soo Mi Oh , Moonock Yang
IPC分类号: H04N7/32 , H04N19/463 , H04N19/159 , H04N19/176 , H04N19/11 , H04N19/44
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.
摘要翻译: 提供了一种解码多路复用比特流以提取帧内预测模式信息和残余信号的方法,使用帧内预测信息和与当前预测单元相邻的预测单元的帧内预测模式来恢复当前预测单元的帧内预测模式, 如果存在预测单元的不可用参考像素,则使用一个或多个可用参考像素生成参考像素,基于恢复的帧内预测模式自适应地过滤参考像素,使用恢复的帧内预测模式和参考像素生成预测块,解码 剩余信号产生残差块,并使用预测块和残差块产生重构块。 因此,有效地减少了由多个帧内预测模式的增加引起的附加位。 此外,通过生成与原始块相似的预测块,可以提高图像压缩率。
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公开(公告)号:US20160309162A1
公开(公告)日:2016-10-20
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: H04N19/159 , 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.
摘要翻译: 提供了一种解码多路复用比特流以提取帧内预测模式信息和残余信号的方法,使用帧内预测信息和与当前预测单元相邻的预测单元的帧内预测模式来恢复当前预测单元的帧内预测模式, 如果存在预测单元的不可用参考像素,则使用一个或多个可用参考像素生成参考像素,基于恢复的帧内预测模式自适应地过滤参考像素,使用恢复的帧内预测模式和参考像素生成预测块,解码 剩余信号产生残差块,并使用预测块和残差块产生重构块。 因此,有效地减少了由多个帧内预测模式的增加引起的附加位。 此外,通过生成与原始块相似的预测块,可以提高图像压缩率。
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公开(公告)号:US20160309160A1
公开(公告)日:2016-10-20
申请号:US15189219
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.
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公开(公告)号:US09467713B2
公开(公告)日:2016-10-11
申请号:US15062487
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 quantized block by inversely scanning the quantization coefficient sequence in a unit of subset when a size of a transform unit is larger than 4×4 and 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 merge mode, motion information is restored using an available spatial or temporal merge candidate and the prediction block is generated using the motion information. The temporal merge candidate includes a reference picture index and a motion vector, the reference picture index of the temporal merge candidate is set to 0, and a motion vector of the temporal merge candidate is a motion vector of the temporal merge candidate in a temporal merge 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.
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,当变换单位的大小大于4×4时,以子集为单位逆量化量化系数序列,生成量化块,生成残差块。 帧间预测单元基于运动矢量信息生成当前块的预测块。 当以合并模式编码预测块时,使用可用的空间或时间合并候选来恢复运动信息,并且使用运动信息生成预测块。 时间合并候选包括参考图像索引和运动矢量,时间合并候选的参考图像索引被设置为0,并且时间合并候选的运动矢量是时间合并候选的时间合并候选的运动矢量 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。
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公开(公告)号:US09462281B2
公开(公告)日:2016-10-04
申请号:US14929643
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: H04N7/32 , H04N19/593 , H04N19/82 , H04N19/117 , H04N19/176 , H04N19/46 , H04N19/157 , H04N19/182 , H04N19/124 , H04N19/13 , H04N19/44 , H04N19/50 , H04N19/61 , H04N19/91
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 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 plurality of sub-blocks and non-zero coefficients of each sub-block are scanned according to a scan pattern determined by the intra prediction mode of the prediction block.
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公开(公告)号:US09438919B2
公开(公告)日:2016-09-06
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: H04N7/32 , H04N19/593 , H04N19/82 , H04N19/117 , H04N19/17 , H04N19/176 , H04N19/46 , H04N19/157 , H04N19/182 , H04N19/124 , H04N19/13 , H04N19/44 , H04N19/50 , H04N19/61 , H04N19/91
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 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.
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过滤基准像素,并根据帧内预测模式生成预测块。 当对第二定向帧内预测模式的参考像素进行滤波时,参考水平模式比第二方向帧内预测模式更接近具有45°方向的帧内预测模式的第一方向帧内预测模式的参考像素 预测模式是,也被过滤。 相对于水平模式,第一和第二帧内预测模式存在于具有45°的方向的水平模式和帧内预测模式之间。 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。
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公开(公告)号:US09432689B2
公开(公告)日:2016-08-30
申请号:US14812157
申请日:2015-07-29
申请人: M&K Holdings Inc.
发明人: Soo Mi Oh
IPC分类号: H04N19/513 , H04N19/52 , 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 a method that generates a prediction block of a current prediction unit, and generates a residual block of the current prediction unit. To generate the prediction block, a reference picture index and motion vector difference of the current prediction unit are obtained from a received bit stream, spatial and temporal motion vector candidates are derived to construct a motion vector candidate list. A motion vector predictor is selected and a motion vector of the current prediction unit is restored to generate the prediction block. Therefore, the motion vector encoded effectively using spatial and temporal candidates is correctly recovered and the complexity of a decoder is reduced.
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公开(公告)号:US20150222895A1
公开(公告)日:2015-08-06
申请号:US14687512
申请日:2015-04-15
申请人: M & K HOLDINGS INC.
发明人: Soo Mi Oh , Moonock Yang
IPC分类号: H04N19/109 , H04N19/129 , H04N19/96 , H04N19/18 , H04N19/61 , H04N19/11 , H04N19/136
CPC分类号: H04N19/109 , H04N19/11 , H04N19/122 , H04N19/129 , H04N19/13 , H04N19/136 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/61 , H04N19/91 , H04N19/96
摘要: Provided is a moving picture coding apparatus for increasing a compression ratio of a moving picture signal while maintaining high image quality. To minimize the number of bits required for a residual block, quantized transform coefficients are adaptively divided into a plurality of subsets according to a size of a transform block, and non-zero quantized transform coefficients of each subset are scanned and encoded. Also, an intra prediction mode of the current block is determined using reference pixels obtained by filtering reference pixels of the current block. Accordingly, it is possible to minimize the amount of data required for the residual block of the current block.
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公开(公告)号:USRE49565E1
公开(公告)日:2023-06-27
申请号:US17343127
申请日:2021-06-09
申请人: M&K Holdings Inc.
发明人: Soo Mi Oh , Moonock Yang
IPC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
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 and 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.
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