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公开(公告)号：US20140010283A1
公开(公告)日：2014-01-09
申请号：US13959885
申请日：2013-08-06
Inventor： Sung Chang LIM , Jong Ho KIM , Hae Chul CHOI , Hui Yong KIM , Ha Hyun LEE , Jin Ho LEE , Se Yoon JEONG , Suk Hee CHO , Jin Soo CHOI , Jin Woo HONG , Jin Woong KIM
IPC: H04N7/26
CPC classification number: H04N19/105 , H04N19/176 , H04N19/593
Abstract: 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.
Abstract translation: 提供了一种图像编码方法和装置。 当对片内的块进行图像编码时，片的恢复块中的至少一个块被设置为参考块。 当这样做时，参考块的编码参数被区分，并且要编码的块基于编码参数自适应地编码。
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公开(公告)号：US20250071265A1
公开(公告)日：2025-02-27
申请号：US18946812
申请日：2024-11-13
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM
IPC: H04N19/105 , H04N19/117 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: 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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公开(公告)号：US20240430423A1
公开(公告)日：2024-12-26
申请号：US18810406
申请日：2024-08-20
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/12 , H04N19/176 , H04N19/186 , H04N19/60
Abstract: Disclosed herein is an image encoding/decoding method and apparatus based on transform. An image decoding method includes determining a horizontal transform type and a vertical transform type of a current block, deriving a residual block of the current block by performing inverse transform with respect to the current block based on the determined horizontal transform type and vertical transform type, and reconstructing the current block based on the residual block. The determining of the horizontal transform type and the vertical transform type is performed based on at least one of a width or a height of the current block regardless of an intra prediction mode of the current block, when the current block is in an intra sub-block partitions (ISP) mode.
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公开(公告)号：US20240414350A1
公开(公告)日：2024-12-12
申请号：US18810399
申请日：2024-08-20
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM , Jae Gon KIM , Do Hyeon PARK , Ji Hoon DO , Yong Uk YOON
IPC: H04N19/14 , H04N19/12 , H04N19/176 , H04N19/60
Abstract: Disclosed herein are an image encoding/decoding method and apparatus. The image decoding method of the present disclosure may include obtaining maximum transform block size information, deriving a maximum transform block size on the basis of the maximum transform block size information, and, determining whether or not a secondary inverse transform is applied to the current block on the basis of the maximum transform block size and a horizontal size and a vertical size of a current block.
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公开(公告)号：US20240397076A1
公开(公告)日：2024-11-28
申请号：US18795094
申请日：2024-08-05
Applicant: Electronics and Telecommunications Research Institute , RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Byeung Woo JEON , Jee Yoon PARK
IPC: H04N19/44 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: Disclosed herein is a method of decoding an image. The method includes acquiring intra chroma prediction information of a current block from a bitstream, deriving an intra chroma prediction mode of the current block based on the intra chroma prediction information, and performing intra prediction with respect to the current block based on the intra chroma prediction mode. The intra chroma prediction mode may be any one of a linear model (LM)) mode, a derived luma (DM) mode, a Planar mode, a Vertical mode, a Horizontal mode and a DC mode, and a first bit of the intra chroma prediction information may be used to determine whether the intra chroma prediction mode is an LM mode.
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Patent Agency Ranking
126.发明申请公开(公告)号：US20240380887A1
公开(公告)日：2024-11-14
申请号：US18783359
申请日：2024-07-24
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM
IPC: H04N19/124 , H04N19/159 , H04N19/176 , H04N19/18
Abstract: Disclosed herein is a video decoding method including determining one or more adaptation parameter sets including a quantization matrix set including a plurality of quantization matrices, determining an adaptation parameter set including a quantization matrix set applied to a current picture or a current slice from among the one or more adaptation parameter sets, dequantizing transform coefficients of a current block of a current picture or a current slice based on the quantization matrix set of the determined adaptation parameter set, and reconstructing the current block based on the dequantized transform coefficients, wherein the adaptation parameter set includes coding information applied to one or more pictures or slices.
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127.发明申请公开(公告)号：US20240373062A1
公开(公告)日：2024-11-07
申请号：US18778877
申请日：2024-07-19
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , CHIPS&MEDIA, INC , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Yung Lyul LEE , Ji Yeon JUNG , Nam Uk KIM , Myung Jun KIM , Yang Woo KIM , Dae Yeon KIM , Jae Gon KIM
IPC: H04N19/593 , G06T9/00 , H04N19/107 , H04N19/127 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/189 , H04N19/196 , H04N19/503
Abstract: Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.
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128.发明公开公开(公告)号：US20240357085A1
公开(公告)日：2024-10-24
申请号：US18757232
申请日：2024-06-27
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION KOREA AEROSPACE UNIVERSITY
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Yung Lyul LEE , Myung Jun KIM , Nam Uk KIM , Yang Woo KIM , Ji Yeon JUNG , Jae Gon KIM
IPC: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186
CPC classification number: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: An image encoding/decoding method is provided. An image decoding method of the present invention may comprise restoring an intra-prediction mode of a current chroma block, deriving at least one representative value based on a neighboring sample of the current chroma block and a neighboring sample of a corresponding luma block corresponding to the current chroma block in case the intra-prediction mode is a CCLM (Cross-Component Linear Model) mode, deriving a parameter of CCLM by using the at least one representative value, and generating a prediction block of the current chroma block by using the parameter of CCLM.
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129.发明公开公开(公告)号：US20240340440A1
公开(公告)日：2024-10-10
申请号：US18746655
申请日：2024-06-18
Inventor： Sung Chang LIM , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Jong Ho KIM , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN
IPC: H04N19/52
CPC classification number: H04N19/52
Abstract: An inter prediction method according to the present invention comprises: a step for deriving reference motion information related to a unit to be decoded in a current picture; and a step for performing motion compensation for the unit to be decoded, using the reference motion information that has been derived. According to the present invention, image encoding/decoding efficiency can be enhanced.
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公开(公告)号：US20240323363A1
公开(公告)日：2024-09-26
申请号：US18734880
申请日：2024-06-05
Applicant: Electronics and Telecommunications Research Institute , RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Byeung Woo JEON , Jee Yoon PARK
IPC: H04N19/107 , H04N19/132 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/503 , H04N19/593
CPC classification number: H04N19/107 , H04N19/132 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/503 , H04N19/593
Abstract: Disclosed herein is an image encoding/decoding method and apparatus. The image decoding method includes deriving an intra prediction value by performing intra prediction with respect to a current block, deriving an inter prediction value by performing inter prediction with respect to the current block, deriving a combined inter intra prediction (CIIP) value by weighting the intra prediction value and the inter prediction value, and generating a reconstructed block of the current block using the CIIP value. The intra prediction is performed in a Planar mode.
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