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1. 发明授权

US11272216B2 Method of decoding moving pictures in intra prediction 有权
公开(公告)号：US11272216B2
公开(公告)日：2022-03-08
申请号：US16918627
申请日：2020-07-01
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N19/82 , H04N19/159 , H04N19/117 , H04N19/182 , H04N19/593 , H04N19/176 , H04N19/11
摘要： A method for encoding an image includes determining an intra prediction mode of a current block; generating a prediction block of the current block according to the intra-prediction mode; generating a residual block by calculating a difference between the current block and the prediction block; transforming the residual block to generate a transform block; quantizing the transform block to generate a quantized block; and entropy-coding coefficients of the quantized block.

2. 发明授权

US10735772B2 Method of decoding moving pictures in intra prediction 有权
公开(公告)号：US10735772B2
公开(公告)日：2020-08-04
申请号：US16149491
申请日：2018-10-02
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N19/82 , H04N19/159 , H04N19/117 , H04N19/182 , H04N19/593 , H04N19/176 , H04N19/11
摘要： A method for decoding an image in intra-prediction mode is discussed. The method includes reconstructing the intra-prediction mode of a current block; generating a reference pixel using an available reference pixel when there is an unavailable reference pixel for the current block; adaptively filtering the reference pixel of the current block based on the reconstructed intra-prediction mode and a size of the current block; and generating a prediction block of the current block using the intra-prediction mode of the current block and reference pixel corresponding to the intra-prediction mode Further, in the generating step of the reference pixel, the unavailable reference pixel is set as a pixel value of the available reference pixel, the available reference pixel being an available pixel on the nearest position in a predetermined direction from the unavailable reference pixel.

3. 发明授权

US10148976B2 Method for generating prediction block in AMVP mode 有权
公开(公告)号：US10148976B2
公开(公告)日：2018-12-04
申请号：US15879230
申请日：2018-01-24
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N7/12 , H04N19/51 , H04N19/52 , H04N19/176 , H04N19/13 , H04N19/593 , H04N19/196 , H04N19/124 , H04N19/61 , H04N19/126
摘要： A method of encoding video data, the method including generating, via a generator, a prediction block of a current prediction unit using a reference index and a motion vector of the current prediction unit; generating, via the generator, a residual block using a difference between the current prediction unit and the prediction block; transforming, via a transformer, the residual block to generate a transform block; quantizing, via a quantizer, coefficients of the transform block to generate a quantization block using a quantization parameter, wherein the quantizer generates the quantization block by selecting two effective quantization parameters that are available and exist among left, upper, and previous quantization parameters according to an order of priority levels set for the left, upper, and previous quantization parameters and using an average of the two effective quantization parameters; and entropy-coding, via an entropy-coder, the quantization block using a scan pattern. Further, the motion vector is encoded using a motion vector predictor which is set equal to one of an effective spatial motion vector candidate and an effective temporal motion vector candidate, and when the quantized coefficients of the quantization block are divided into a plural of subset, a same scan pattern is applied to quantized coefficients of each subset.

4. 发明授权

US11272218B2 Method of decoding moving pictures in intra prediction 有权
公开(公告)号：US11272218B2
公开(公告)日：2022-03-08
申请号：US17162152
申请日：2021-01-29
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N19/82 , H04N19/159 , H04N19/117 , H04N19/182 , H04N19/593 , H04N19/176 , H04N19/11
摘要： A method for encoding an image includes determining an intra prediction mode of a current block; generating a prediction block of the current block according to the intra prediction mode; generating a residual block by calculating a difference between the current block and the prediction block; transforming the residual block to generate a transform block; quantizing the transform block to generate a quantized block; and entropy-coding coefficients of the quantized block.

5. 发明授权

US10142658B2 Method of decoding moving pictures in intra prediction 有权
公开(公告)号：US10142658B2
公开(公告)日：2018-11-27
申请号：US15699455
申请日：2017-09-08
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N19/82 , H04N19/159 , H04N19/593 , H04N19/117 , H04N19/182 , H04N19/176 , H04N19/11
摘要： A method of decoding an image including deriving, via an intra-predictor, an intra prediction mode; generating, via the intra-predictor, reference pixels on an unavailable position if there exist unavailable reference pixels of a current block; determining, via the intra-predictor, whether reference pixels of the current block are filtered or not based on the derived intra prediction mode and a block size of the current block; filtering the reference pixels of the current block using a filter if it is determined that the reference pixels of the current block are filtered, wherein two or more filters are used based on the block size of the current block such that a filter with a broad bandwidth is applied to a large block; and generating, via the intra-predictor, a prediction block of the current block according to the derived intra prediction mode of the current block and the reference pixels. In addition, the filter is selected based on the block size of the current block and a difference between reference pixels, and the reference pixels of the current block are not filtered when the reconstructed intra-prediction mode of the current block is a horizontal or vertical mode.

6. 发明授权

US09788016B2 Method of decoding moving pictures in intra prediction 有权
公开(公告)号：US09788016B2
公开(公告)日：2017-10-10
申请号：US14591477
申请日：2015-01-07
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N7/12 , H04N19/82 , H04N19/159 , H04N19/593 , H04N19/117 , H04N19/182 , H04N19/176 , H04N19/11
CPC分类号： H04N19/82 , H04N19/11 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/593
摘要： A method of encoding an image is disclosed. The method comprises determining an intra prediction mode; generating a reference pixel if there exist unavailable reference pixels of a current block; determining whether reference pixels of the current block are filtered or not based on the intra prediction mode and a size of the current block; selecting a filter using the size of the current block and difference between reference pixels and filtering the reference pixels of the current block using the selected filter if it is determined that the reference pixels of the current block are filtered; and generating the prediction block according to the intra prediction mode.

7. 发明授权

US09036709B1 Apparatus for decoding motion information in merge mode 有权
标题翻译：用于在合并模式下解码运动信息的装置
公开(公告)号：US09036709B1
公开(公告)日：2015-05-19
申请号：US14593889
申请日：2015-01-09
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N7/12 , H04N19/13 , H04N19/139 , H04N19/126 , H04N19/129 , H04N19/176 , H04N19/61 , H04N19/00 , H04N19/40
CPC分类号： H04N19/52 , H04N19/124 , H04N19/126 , H04N19/129 , H04N19/13 , H04N19/139 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/1887 , H04N19/198 , H04N19/40 , H04N19/44 , H04N19/51 , H04N19/513 , H04N19/593 , H04N19/61
摘要： Disclosed is an apparatus for decoding motion information in merge mode. The apparatus for decoding motion information in merge mode discloses a merge mode motion vector decoding unit configured to generate motion information using available spatial and temporal merge candidates when a motion information encoding mode of a current block indicates a merge mode; a prediction bock generating unit configured to generate a prediction block of the current block using motion information; and a residual block generating unit configured to perform an entropy-decoding process and an inverse-scanning process on residual signals to generate a quantized block, and to perform an inverse-transforming process on the quantized block to generate a residual block. Furthermore, a reference picture index of the temporal merge candidate is set to 0, a motion vector of the temporal merge candidate is selected among a first merge candidate block and a second merge candidate block based on a position of the current block within a slice or a largest coding unit, and the motion vector of the second merge candidate block is selected as the motion vector of the temporal merge candidate if the current block is adjacent to a lower boundary of the largest coding unit, and a diagonal raster inverse scan is used during the inverse-scanning process.
摘要翻译：公开了一种用于在合并模式下解码运动信息的装置。用于以合并模式解码运动信息的装置公开了一种合并模式运动矢量解码单元，被配置为当当前块的运动信息编码模式指示合并模式时，使用可用的空间和时间合并候选生成运动信息; 预测块生成单元，被配置为使用运动信息生成当前块的预测块; 以及残余块生成单元，被配置为对残差信号执行熵解码处理和逆扫描处理，以生成量化块，并对量化块执行逆变换处理以生成残差块。此外，时间合并候选的参考图像索引被设置为0，基于片内当前块的位置，在第一合并候选块和第二合并候选块中选择时间合并候选的运动矢量，或如果当前块与最大编码单元的下边界相邻，则选择第二合并候选块的运动矢量作为时间合并候选的运动矢量，并且使用对角线光栅反向扫描在反扫描过程中。

8. 发明授权

US10123049B2 Method of decoding moving pictures in intra prediction 有权
公开(公告)号：US10123049B2
公开(公告)日：2018-11-06
申请号：US15596927
申请日：2017-05-16
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N19/82 , H04N19/159 , H04N19/593 , H04N19/117 , H04N19/182 , H04N19/176 , H04N19/11
摘要： A method of encoding an image is discussed. The method includes deriving an intra prediction mode, generating reference pixels on an unavailable position if there exist unavailable reference pixels of a current block, determining whether reference pixels of the current block are filtered or not, filtering the reference pixels of the current block using a filter, wherein two or more filters are used based on the block size of the current block such that a filter with a broad bandwidth is applied to a large block, and generating a prediction block of the current block according to the derived intra prediction mode of the current block and the reference pixels. The filter is selected based on the block size of the current block and a difference between reference pixels, and the reference pixels of the current block are not filtered in a horizontal mode.

9. 发明授权

US10123033B2 Method for generating prediction block in AMVP mode 有权
公开(公告)号：US10123033B2
公开(公告)日：2018-11-06
申请号：US15708740
申请日：2017-09-19
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N7/12 , H04N19/51 , H04N19/52 , H04N19/176 , H04N19/13 , H04N19/593 , H04N19/196 , H04N19/124 , H04N19/61 , H04N19/126
摘要： A method of encoding an image in a merge mode, the method including determining motion information of a current prediction unit, and generating a prediction block using the motion information; generating a residual block using an original block and the prediction block, transforming the residual block to generating a transformed block, quantizing the transformed block using a quantization parameter to generate a quantized block, and scanning the quantized block to entropy-code the quantized block; and encoding the motion information using effective spatial and temporal merge candidates of the current prediction unit. Further, a motion vector of the temporal merge candidate is a motion vector of a temporal merge candidate within a temporal merge candidate picture, and the quantization parameter is encoded using an average of two effective quantization parameters among a left quantization parameter, an upper quantization parameter and a previous quantization parameter of a current coding unit, also when the quantized block is larger than a predetermined size, the quantized block is divided into a plurality of subblocks to be scanned, and a scan pattern for scanning the plurality of subblocks is the same as a scan pattern for scanning quantized coefficients within each subblock. In addition, information indicating a position of a last non-zero quantized coefficient in a transform unit is transmitted to a video decoder.

10. 发明授权

US09800887B2 Method for generating prediction block in AMVP mode 有权
公开(公告)号：US09800887B2
公开(公告)日：2017-10-24
申请号：US14586471
申请日：2014-12-30
申请人： IBEX PT HOLDINGS CO., LTD.
发明人： Kwangje Kim , Hyunoh Oh
IPC分类号： H04N7/12 , H04N19/51 , H04N19/52 , H04N19/176 , H04N19/13 , H04N19/593 , H04N19/196 , H04N19/124 , H04N19/61 , H04N19/126
CPC分类号： H04N19/51 , H04N19/124 , H04N19/126 , H04N19/13 , H04N19/176 , H04N19/198 , H04N19/52 , H04N19/593 , H04N19/61
摘要： A method for generating a prediction block in Advanced Motion Vector Prediction (AMVP) mode to reconstruct a prediction-coded video signal using a motion vector approximate to original motion information. An AMVP candidate list is generated using effective spatial and temporal AMVP candidates for a current Prediction Unit (PU). If the number of the effective AMVP candidates is smaller than a predetermined value, a motion vector having a predetermined value as a candidate to the AMVP candidate list. Then a motion vector corresponding to an AMVP index of the current PU from among motion vectors included in the AMVP candidate list is determined to be a motion vector predictor of the current PU.

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