公开(公告)号：US11671597B2

公开(公告)日：2023-06-06

申请号：US17167901

申请日：2021-02-04

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/119 ,  H04N19/593 ,  H04N19/124 ,  H04N19/176 ,  H04N19/122 ,  H04N19/11 ,  H04N19/117 ,  H04N19/463 ,  H04N19/159 ,  H04N19/129 ,  H04N19/186 ,  H04N19/157 ,  H04N19/82 ,  H04N19/13 ,  H04N19/172

CPC分类号： H04N19/124 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/82 ,  H04N19/119

摘要： A method can include decoding residual signals to generate quantized coefficient components; determining an inverse scan pattern and generating a quantized block using the inverse scan pattern; deriving a quantization parameter and inversely quantizing the quantized block using the quantization parameter to generate a transformed block; and inversely transforming the transformed block to generate a residual block, in which when the quantization parameter is a chroma quantization parameter, the chroma quantization parameter is generated using a luma quantization parameter and an offset parameter indicating a relationship between the luma quantization parameter and the chroma quantization parameter, the luma quantization parameter is derived using a differential quantization parameter and a quantization parameter predictor, and the differential quantization parameter is generated by entropy decoding, and parameters are set according to certain conditions.

公开(公告)号：US12108042B2

公开(公告)日：2024-10-01

申请号：US18144073

申请日：2023-05-05

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/119 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/82

CPC分类号： H04N19/124 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/82 ,  H04N19/119

摘要： An apparatus of decoding video data can include a prediction mode decoding module to derive a luma intra prediction mode and a chroma intra prediction mode; a prediction size determining module to determine a size of a luma transform unit and a size of a chroma transform unit using transform size information; a reference pixel generating module to generate referential pixels if at least one reference pixel is unavailable; and a reference pixel filtering module adaptively filter the reference pixels of a current luma block based on the luma intra prediction mode and the size of the luma transform unit. The apparatus can further include a prediction block generating module to generate prediction blocks of the current luma block and the current chroma block; and a residual bock generating module to generate residual blocks of the current luma block and the current chroma block.

公开(公告)号：US11889065B2

公开(公告)日：2024-01-30

申请号：US17584096

申请日：2022-01-25

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/109 ,  H04N19/105 ,  H04N19/124 ,  H04N19/126 ,  H04N19/159 ,  H04N19/463 ,  H04N19/52 ,  H04N19/176 ,  H04N19/46 ,  H04N19/129

CPC分类号： H04N19/109 ,  H04N19/105 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52

摘要： A method of decoding an image can includes constructing an advanced motion vector predication (AMVP) candidate list using available motion vector candidates of a left motion vector candidate, an above motion vector candidate and a temporal motion vector candidate; selecting a motion vector predictor among motion vector candidates of the AMVP candidates list using an AMVP index, and generating a motion vector using the motion vector predictor and a differential motion vector, generating a prediction block using the motion vector and a reference picture index; inversely quantizing a quantized block using a quantization parameter to generate a transformed block and inversely transforming the transformed block to generate a residual block; and generating a reconstructed block using the prediction block and the residual block, in which the quantization parameter is generated per quantization unit, and a minimum size of the quantization unit is adjusted per picture.

公开(公告)号：US11825092B2

公开(公告)日：2023-11-21

申请号：US17682914

申请日：2022-02-28

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/126 ,  H04N19/593 ,  H04N19/176 ,  H04N19/463 ,  H04N19/11 ,  H04N19/157 ,  H04N19/70 ,  H04N19/61 ,  H04N19/124 ,  H04N19/136 ,  H04N19/105

CPC分类号： H04N19/126 ,  H04N19/11 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/105

摘要： A method for encoding an image using intra prediction can include determining an intra prediction mode of a current block; generating a mode group indicator and a prediction mode index; constructing a most probable mode (MPM) group including three intra prediction modes determined using a left and an above intra prediction mode of the current block; determining whether all reference pixels of the current block are available; generating reference pixels if one or more reference pixels of the current block are unavailable; adaptively filtering the reference pixels based on the intra prediction mode and the size of the current block, wherein if the size of the current block is 4×4, the reference pixels are not filtered, and if the size of the current block is larger than 4×4, the number of intra prediction mode where the reference pixels are filtered increases as the current block becomes larger; generating the prediction block using the reference pixels.

公开(公告)号：US11582452B2

公开(公告)日：2023-02-14

申请号：US17167930

申请日：2021-02-04

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/176 ,  H04N19/593 ,  H04N19/124 ,  H04N19/122 ,  H04N19/11 ,  H04N19/117 ,  H04N19/463 ,  H04N19/159 ,  H04N19/129 ,  H04N19/186 ,  H04N19/157 ,  H04N19/82 ,  H04N19/13 ,  H04N19/172 ,  H04N19/119

摘要： An apparatus can include a prediction mode decoding module configured to derive a luma intra prediction mode and a chroma intra prediction mode; a prediction size determining module configured to determine a size of a luma transform unit and a size of a chroma transform unit using transform size information; a reference pixel generating module configured to generate referential pixels if at least one reference pixel is unavailable; a reference pixel filtering module configured to adaptively filter the reference pixels of a current luma block based on the luma intra prediction mode and the size of the luma transform unit, and not to filter the reference pixels of a current chroma block; a prediction block generating module configured to generate prediction blocks of the current luma block and the current chroma block; a residual bock generating module configured to generate a luma residual block and a chroma residual block; and an adder.

公开(公告)号：US11470318B2

公开(公告)日：2022-10-11

申请号：US17167919

申请日：2021-02-04

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/11 ,  H04N19/124 ,  H04N19/176 ,  H04N19/122 ,  H04N19/593 ,  H04N19/117 ,  H04N19/463 ,  H04N19/159 ,  H04N19/129 ,  H04N19/186 ,  H04N19/157 ,  H04N19/82 ,  H04N19/13 ,  H04N19/172 ,  H04N19/119

摘要： An image decoding apparatus can include a prediction mode decoding module for deriving luma intra prediction mode and chroma intra prediction mode; a prediction size determining module for determining a size of a luma transform unit and a size of a chroma transform unit; a reference pixel generating module for generating a reference pixel when at least one reference pixel is unavailable; a reference pixel filtering module for adaptively filtering a reference pixel of a current luma block based on the luma intra prediction mode and the size of the luma transform unit, wherein a reference pixel of a current chroma block is not filtered; a prediction block generating module for generating prediction blocks of the current luma block and the current chroma block; and a residual block generating module for generating a luma residual block and a chroma residual block.

公开(公告)号：US11997307B2

公开(公告)日：2024-05-28

申请号：US17381011

申请日：2021-07-20

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/52 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513

CPC分类号： H04N19/52 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513

摘要： A method of decoding video data in merge mode can include constructing a merge candidate list using available spatial and temporal merge candidates; deriving motion information using a merge index and the merge candidate list; generating a prediction block using the motion information; generating a residual block by inverse-quantizing a quantized block using a quantization parameter and a quantization matrix and by inverse-transforming the inverse quantized block; and generating a reconstructed block using the residual block and the prediction block, wherein the quantization parameter is generated per quantization unit and a minimum size of the quantization unit is adjusted per picture, and the quantization parameter is generated using a quantization parameter predictor and a differential quantization parameter.

公开(公告)号：US11438592B2

公开(公告)日：2022-09-06

申请号：US17167950

申请日：2021-02-04

申请人： GENSQUARE LLC

发明人： Soo Mi Oh ,  Moonock Yang

IPC分类号： H04N19/13 ,  H04N19/124 ,  H04N19/176 ,  H04N19/122 ,  H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/463 ,  H04N19/159 ,  H04N19/129 ,  H04N19/186 ,  H04N19/157 ,  H04N19/82 ,  H04N19/172 ,  H04N19/119

摘要： An image coding method can include generating a prediction block using an intra prediction mode; generating a prediction block using motion information; transforming residual signals generated using an original block and the prediction block to generate a transformed block; quantizing the transformed block using a quantization parameter to generate a quantized block; determining a scan pattern and applying the scan pattern to the quantized block to generate one-dimensional coefficient information; and entropy-coding the one-dimensional coefficient information, in which the residual signals are transformed in transform unit, a transform type used for transforming the residual signals of luma component is determined by a prediction mode and a size of the transform unit, and a transform type used for transforming the residual signals of chroma components is a DCT-based integer transform, and the quantization parameter is a luma quantization parameter, and a differential quantization parameter is generated by subtracting a quantization parameter predictor from the quantization parameter, and is entropy-coded.