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1.发明申请公开(公告)号：US20210289202A1
公开(公告)日：2021-09-16
申请号：US17333132
申请日：2021-05-28
发明人： Je Chang JEONG , Ki Baek KIM , Jung Hyun LEE
IPC分类号： H04N19/117 , H04N19/105 , H04N19/176 , H04N19/44 , H04N19/14 , H04N19/159
摘要： Disclosed is a method for encoding and decoding an image by applying different filtering strength to reference pixels based on a size relationship between a current block and each reference block such that a prediction block for the current block is constructed using reference pixels which are filtered adaptively according to their properties.
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公开(公告)号：US20210274177A1
公开(公告)日：2021-09-02
申请号：US17324280
申请日：2021-05-19
发明人： Ki Baek KIM , Je Chang JEONG
IPC分类号： H04N19/119 , H04N19/176 , H04N19/189 , H04N19/64
摘要： An image encoding method includes configuring block division information and size information of a boundary block which is located at a boundary of an image and is smaller than a size of a basic encoding block, on the basis of size information of a picture and size information of the basic encoding block; dividing the boundary block into at least one encoding block, on the basis of the size information of the basic encoding block and the size information and the block division information of the boundary block; and encoding the at least one divided encoding block.
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公开(公告)号：US20210185330A1
公开(公告)日：2021-06-17
申请号：US17184685
申请日：2021-02-25
发明人： Ki Baek KIM , Je Chang JEONG
IPC分类号： H04N19/176 , H04N19/117 , H04N19/124 , H04N19/182 , H04N19/44 , H04N19/61 , H04N19/82
摘要： The invention relates to a method and a device for decoding an image by means of a partition unit comprising an additional region. The method of decoding an image by means of a partition unit comprising an additional region comprises the steps of: partitioning, by reference to a syntax element acquired from a received bit stream, an encoded image, which is included in the bitstream, in at least one partition unit; define an additional region for at least one partition unit; and decoding the encoded image based on the partition unit for which the additional region is defined. The invention improves the image coding efficiency.
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公开(公告)号：US20200314433A1
公开(公告)日：2020-10-01
申请号：US16899978
申请日：2020-06-12
发明人： Je Chang JEONG , Ki Baek KIM , Won Jin LEE , Hye Jin SHIN , Jong Sang YOO , Jang Hyeok YUN , Kyung Jun LEE , Jae Hun KIM , Sang Gu LEE
IPC分类号： H04N19/159 , H04N19/196 , H04N19/176 , H04N19/11 , H04N19/154 , H04N19/182 , H04N19/593 , H04N19/105
摘要： Disclosed are a method and apparatus for improving the accuracy of intra-prediction in order to improve encoding and decoding efficiency. The video decoding method may improve the prediction efficiency for the current pixel to be predicted by referring to the degree of variation in surrounding pixels, to thereby effectively decode the bit stream with improved encoding efficiency. In addition, an additional prediction candidate is used to achieve improved accuracy of intra-prediction, and the thus-improved accuracy of intra-prediction may reduce residual components and improve encoding efficiency. Further, an improved planar mode is utilized to achieve improved intra-prediction.
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5.发明公开公开(公告)号：US20230254483A1
公开(公告)日：2023-08-10
申请号：US18304660
申请日：2023-04-21
发明人： Je Chang JEONG , Ki Baek KIM , Jung Hyun LEE
IPC分类号： H04N19/117 , H04N19/105 , H04N19/176 , H04N19/44 , H04N19/14 , H04N19/159
CPC分类号： H04N19/117 , H04N19/105 , H04N19/176 , H04N19/44 , H04N19/14 , H04N19/159
摘要： Disclosed is a method for encoding and decoding an image by applying different filtering strength to reference pixels based on a size relationship between a current block and each reference block such that a prediction block for the current block is constructed using reference pixels which are filtered adaptively according to their properties.
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公开(公告)号：US20230051471A1
公开(公告)日：2023-02-16
申请号：US17964281
申请日：2022-10-12
发明人： Ki Baek KIM , Je Chang Jeong
IPC分类号： H04N19/176 , H04N19/117 , H04N19/124 , H04N19/182 , H04N19/44 , H04N19/61 , H04N19/82
摘要： The invention relates to a method and a device for decoding an image by means of a partition unit comprising an additional region. The method of decoding an image by means of a partition unit comprising an additional region comprises the steps of: partitioning, by reference to a syntax element acquired from a received bit stream, an encoded image, which is included in the bitstream, in at least one partition unit; define an additional region for at least one partition unit; and decoding the encoded image based on the partition unit for which the additional region is defined. The invention improves the image coding efficiency.
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公开(公告)号：US20210297675A1
公开(公告)日：2021-09-23
申请号：US17338771
申请日：2021-06-04
发明人： Ki Baek KIM , Je Chang JEONG
IPC分类号： H04N19/14 , H04N19/117 , H04N19/182 , H04N19/82
摘要： The in-loop filtering method performed by a video decoding apparatus includes: classifying reconstructed samples according to an absolute classification standard or relative classification standard; acquiring offset data on the basis of results of classifying the reconstructed samples; adding an offset value to the reconstructed samples by referencing the acquired offset data; and outputting the offset value-added reconstructed samples. Accordingly, errors in the reconstructed image can be corrected.
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公开(公告)号：US20200213590A1
公开(公告)日：2020-07-02
申请号：US16631325
申请日：2018-07-12
发明人： Ki Baek KIM , Je Chang JEONG
IPC分类号： H04N19/119 , H04N19/176
摘要： Disclosed is an image encoding method comprising the steps of: configuring block division information and size information of a boundary block which is located at a boundary of an image and is smaller than a size of a basic encoding block, on the basis of size information of a picture and size information of the basic encoding block; dividing the boundary block into at least one encoding block, on the basis of the size information of the basic encoding block and the size information and the block division information of the boundary block; and encoding the at least one divided encoding block.
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公开(公告)号：US20240107029A1
公开(公告)日：2024-03-28
申请号：US18481623
申请日：2023-10-05
发明人： Je Chang JEONG , Ki Baek KIM
IPC分类号： H04N19/159 , H04N19/105 , H04N19/11 , H04N19/174 , H04N19/176 , H04N19/44 , H04N19/96
CPC分类号： H04N19/159 , H04N19/105 , H04N19/11 , H04N19/174 , H04N19/176 , H04N19/44 , H04N19/96
摘要： Disclosed is a decoding method which uses an intra-screen prediction. A decoding method which uses an intra prediction performed in a decoding apparatus comprises the steps of: receiving a bit stream; obtaining decoding information from the received bit stream; generating a prediction block for a current block to be decoded using the obtained decoding information; and restoring the current block by adding a residual block obtained from the bit stream and the prediction block. Accordingly, a compression ratio of an image can be improved.
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公开(公告)号：US20200036978A1
公开(公告)日：2020-01-30
申请号：US16496239
申请日：2018-03-22
发明人： Ki Baek KIM , Je Chang JEONG
IPC分类号： H04N19/122 , H04N19/184 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/14
摘要： An image encoding/decoding method using a pixel value range constituting an image is disclosed, wherein the image decoding method using a pixel value range constituting an image comprises the steps of: receiving a bitstream; acquiring information of a pixel value range forming a first unit image included in the received bitstream; and decoding the first unit image on the basis of the acquired information of the pixel value range. Therefore, compression efficiency can be improved in an image encoding or decoding process.
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