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41.发明公开
公开(公告)号：EP3989579A1
公开(公告)日：2022-04-27
申请号：EP20826110.7
申请日：2020-06-18
发明人： LIM, Sung Chang , KANG, Jung Won , LEE, Ha Hyun , LEE, Jin Ho , KIM, Hui Yong
IPC分类号： H04N19/61 , H04N19/593 , H04N19/70 , H04N19/176 , H04N19/109
摘要： Disclosed herein is a video decoding method including: obtaining a transform skip mode flag indicating whether or not a transform skip mode is applied to a current block; based on the transform skip mode flag, when a transform skip mode is applied to the current block, determining that secondary transform/inverse transform is not applied to the current block; and, according to the transform skip mode flag, when a transform skip mode is not applied to the current block, obtaining a transform matrix index for secondary transform/inverse transform of the current block and, according to the transform matrix index, determining whether or not secondary transform/inverse transform is applied to the current block.
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公开(公告)号：EP3989577A1
公开(公告)日：2022-04-27
申请号：EP20826819.3
申请日：2020-06-08
发明人： LEE, Jin Ho , KANG, Jung Won , LEE, Ha Hyun , LIM, Sung Chang , KIM, Hui Yong
IPC分类号： H04N19/593 , H04N19/11 , H04N19/117 , H04N19/132 , H04N19/119 , H04N19/176 , H04N19/137 , H04N19/186
摘要： Disclosed herein are a method and an apparatus for encoding/decoding an image. The image decoding method according to the present invention includes obtaining prediction information of a current block from a bitstream and, by performing prediction based on the prediction information, generating a prediction block of the current block. Herein, the prediction information includes split prediction information of the current block. The generating of the prediction block includes obtaining a reference sample from a neighboring block of the current block, applying an interpolation filter to the reference sample, and generating the prediction block by using the reference sample to which the interpolation filter is applied. The interpolation filter is determined based on the split prediction information of the current block.
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43.发明公开
公开(公告)号：EP3917142A1
公开(公告)日：2021-12-01
申请号：EP19903158.4
申请日：2019-12-24
发明人： LIM, Sung Chang , KANG, Jung Won , LEE, Ha Hyun , LEE, Jin Ho , KIM, Hui Yong , KIM, Dae Yeon
IPC分类号： H04N19/124 , H04N19/105 , H04N19/176 , H04N19/119 , H04N19/50 , H04N19/117 , H04N19/94 , H04N19/136 , H04N19/70 , H04N19/61
摘要： Disclosed herein is a method of encoding/decoding an image. The image decoding method includes decoding information on a quantization matrix from a bitstream, acquiring a quantization matrix of a current block based on the information on the quantization matrix, and dequantizing the current block using the quantization matrix of the current block. The acquiring of the quantization matrix of the current block includes deriving a single identifier using at least one of a size of the current block, a prediction mode or a color component, and acquiring the quantization matrix of the current block based on the single identifier.
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公开(公告)号：EP3829178A1
公开(公告)日：2021-06-02
申请号：EP21150983.1
申请日：2011-04-11
发明人： LEE, Jin Ho , KIM, Hui Yong , JEONG, Se Yoon , CHO, Suk Hee , LEE, Ha Hyun , KIM, Jong Ho , LIM, Sung Chang , CHOI, Jin Soo , KIM, Jin Woong , AHN, Chie Teuk
IPC分类号： H04N19/593 , H04N19/157 , H04N19/82 , H04N19/117 , H04N19/176 , H04N19/182 , H04N19/136
摘要： The present invention relates to a method of performing intra-prediction, including determining whether to apply a first filter to a reference pixel value based on information about surrounding blocks of a current block, if, as a result of the determination, the first filter is determined to be applied, applying the first filter to the reference pixel value, performing intra-prediction for the current block based on the reference pixel value, determining whether to apply a second filter to a prediction value for each prediction mode of the current block, predicted by performing the intra-prediction based on the information about the surrounding blocks, and if, as a result of the determination, the second filter is determined to be applied, applying the second filter to the prediction value for each prediction mode.
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公开(公告)号：EP3823285A1
公开(公告)日：2021-05-19
申请号：EP21150984.9
申请日：2011-04-11
发明人： LEE, Jin Ho , KIM, Hui Yong , JEONG, Se Yoon , CHO, Suk Hee , LEE, Ha Hyun , KIM, Jong Ho , LIM, Sung Chang , CHOI, Jin Soo , KIM, Jin Woong , AHN, Chie Teuk
IPC分类号： H04N19/593 , H04N19/157 , H04N19/82 , H04N19/117 , H04N19/176 , H04N19/182 , H04N19/136
摘要： The present invention relates to a method of performing intra-prediction, including determining whether to apply a first filter to a reference pixel value based on information about surrounding blocks of a current block, if, as a result of the determination, the first filter is determined to be applied, applying the first filter to the reference pixel value, performing intra-prediction for the current block based on the reference pixel value, determining whether to apply a second filter to a prediction value for each prediction mode of the current block, predicted by performing the intra-prediction based on the information about the surrounding blocks, and if, as a result of the determination, the second filter is determined to be applied, applying the second filter to the prediction value for each prediction mode.
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46.发明公开
公开(公告)号：EP3817381A1
公开(公告)日：2021-05-05
申请号：EP19826305.5
申请日：2019-06-28
发明人： LIM, Sung Chang , KANG, Jung Won , LEE, Ha Hyun , LEE, Jin Ho , KIM, Hui Yong , KIM, Dae Yeon , PARK, Dong Jin , JANG, Myoung Hun , JEONG, Wook Je
IPC分类号： H04N19/103 , H04N19/122 , H04N19/119 , H04N19/176 , H04N19/105 , H04N19/132 , H04N19/139 , H04N19/184
摘要： There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding information on whether or not to perform motion information refinement from a bitstream, obtaining second motion information for first motion information on a current block on the basis of the information and reconstructing at least one of the current block and a neighboring block of the current block by using at least one of the first motion information and the second motion information.
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公开(公告)号：EP3720129A1
公开(公告)日：2020-10-07
申请号：EP18882727.3
申请日：2018-11-29
发明人： LIM, Sung Chang , KANG, Jung Won , LEE, Ha Hyun , JUN, Dong San , KO, Hyun Suk , LEE, Jin Ho , KIM, Hui Yong
IPC分类号： H04N19/117 , H04N19/119 , H04N19/176 , H04N19/50 , H04N19/60 , H04N19/124 , H04N19/426 , H04N19/593
摘要： The present invention relates to a video encoding/decoding method and apparatus. The video decoding method according to the present invention may comprise decoding filter information on a coding unit; classifying samples in the coding unit into classes on a per block classification unit basis; and filtering the coding unit having the samples classified into the classes on a per block classification unit basis by using the filter information.
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公开(公告)号：EP3591970A1
公开(公告)日：2020-01-08
申请号：EP19194906.4
申请日：2010-12-16
发明人： LIM, Sung Chang , KIM, Jong Ho , CHOI, Hae Chul , KIM, Hui Yong , LEE, Ha Hyun , LEE, Jin Ho , JEONG, Se Yoon , CHO, Suk Hee , CHOI, Jin Soo , HONG, Jin Woo , KIM, Jin Woong
IPC分类号： H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
摘要： Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.
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公开(公告)号：EP3402195A1
公开(公告)日：2018-11-14
申请号：EP18175121.5
申请日：2011-08-17
发明人： LIM, Sung Chang , KIM, Hui Yong , JEONG, Se Yoon , CHO, Suk Hee , KIM, Jong Ho , LEE, Ha Hyun , LEE, Jin Ho , CHOI, Jin Soo , KIM, Jin Woong , AHN, Chie Teuk
IPC分类号： H04N19/176 , H04N19/70 , H04N19/119 , H04N19/14 , H04N19/33 , H04N19/196 , H04N19/463 , H04N19/124
CPC分类号： H04N19/124 , H04N19/119 , H04N19/14 , H04N19/176 , H04N19/196 , H04N19/33 , H04N19/463 , H04N19/70
摘要： The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units.
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公开(公告)号：EP3367682A1
公开(公告)日：2018-08-29
申请号：EP18162461.0
申请日：2011-05-06
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： LIM, Sung Chang , LEE, Ha Hyun , JEONG, Se Yoon , KIM, Hui Yong , CHO, Suk Hee , KIM, Jong Ho , LEE, Jin Ho , CHOI, Jin Soo , KIM, Jin Woong , AHN, Chie Teuk , SIM, Dong Gyu , OH, Seoung Jun , PARK, Gwang Hoon , PARK, Sea Nae , JEON, Chan Woong
IPC分类号： H04N19/117 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/82 , H04N19/46 , H04N19/593
CPC分类号： H04N19/117 , H04N19/109 , H04N19/132 , H04N19/159 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/192 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/82
摘要： The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
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