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公开(公告)号：US20220224896A1
公开(公告)日：2022-07-14
申请号：US17711477
申请日：2022-04-01
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , Universily-lndustry Cooperation Group of Kyung Hee University
发明人： Sung Chang LIM , Ha Hyun LEE , Se Yoon JEONG , Hui Yong KIM , Suk Hee CHO , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Sea Nae PARK , Chan Woong JEON
IPC分类号： H04N19/117 , H04N19/46 , H04N19/593 , H04N19/132 , H04N19/176 , H04N19/17 , H04N19/50 , H04N19/109 , H04N19/159 , H04N19/174 , H04N19/192 , 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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公开(公告)号：US20190149820A1
公开(公告)日：2019-05-16
申请号：US16244854
申请日：2019-01-10
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： Sung Chang LIM , Ha Hyun LEE , Se Yoon JEONG , Hui Yong KIM , Suk Hee CHO , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Sea Nae PARK , Chan Woong JEON
IPC分类号： H04N19/117 , H04N19/176 , H04N19/82 , H04N19/159 , H04N19/192 , H04N19/174 , H04N19/46 , H04N19/50 , H04N19/17 , H04N19/132 , H04N19/593 , H04N19/109
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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公开(公告)号：US20240073416A1
公开(公告)日：2024-02-29
申请号：US18502708
申请日：2023-11-06
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-lndustry Cooperation Group of Kyung Hee University
发明人： Sung Chang LIM , Ha Hyun LEE , Se Yoon JEONG , Hui Yong KIM , Suk Hee CHO , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Sea Nae PARK , Chan Woong JEON
IPC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
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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公开(公告)号：US20200154104A1
公开(公告)日：2020-05-14
申请号：US16738307
申请日：2020-01-09
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： Sung Chang LIM , Ha Hyun LEE , Se Yoon JEONG , Hui Yong KIM , Suk Hee CHO , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Sea Nae PARK , Chan Woong JEON
IPC分类号： H04N19/117 , H04N19/46 , H04N19/593 , H04N19/132 , H04N19/176 , H04N19/17 , H04N19/50 , H04N19/109 , H04N19/159 , H04N19/174 , H04N19/192 , 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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公开(公告)号：US20170310964A1
公开(公告)日：2017-10-26
申请号：US15649330
申请日：2017-07-13
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： Sung Chang LIM , Ha Hyun LEE , Se Yoon JEONG , Hui Yong KIM , Suk Hee CHO , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Sea Nae PARK , Chan Woong JEON
IPC分类号： H04N19/117 , H04N19/593 , H04N19/50 , H04N19/46 , H04N19/192 , H04N19/174 , H04N19/17 , H04N19/159 , H04N19/132 , H04N19/82 , H04N19/109
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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公开(公告)号：US20200037003A1
公开(公告)日：2020-01-30
申请号：US16590648
申请日：2019-10-02
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Dong Gyu SIM , Seoung Jun OH , Jin Soo CHOI , Seoung Hwi KIM , Sea Nae PARK , Yong Jo AHN , Dong Kyu LEE
IPC分类号： H04N19/82 , H04N19/30 , H04N19/44 , H04N19/70 , H04N19/86 , H04N19/196 , H04N19/176 , H04N19/117 , H04N19/182 , H04N19/186
摘要： The present invention provides a method and apparatus for encoding/decoding an image and for adjusting a reconstructed pixel by scaling an offset of an in-loop filter having a scaled offset value. The method includes: obtaining information of a scale default value of a current block from a bitstream; obtaining offset parameter merge information of the current block from the bitstream; obtaining the offset parameter of the current block on the basis of the offset parameter merge information; determining whether a scale residual value of the current block is obtained from the bitstream on the basis of the offset parameter merge information; obtaining a scale value on the basis of the scale default value and the scale residual value; scaling an offset on the basis of the offset parameter and the scale value; and adjusting a pixel value of the current block on the basis of the scaled offset.
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公开(公告)号：US20180359491A1
公开(公告)日：2018-12-13
申请号：US15775465
申请日：2016-11-18
申请人： Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
发明人： Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Dong Gyu SIM , Seoung Jun OH , Jin Soo CHOI , Seoung Hwi KIM , Sea Nae PARK , Yong Jo AHN , Dong Kyu LEE
IPC分类号： H04N19/82 , H04N19/117
CPC分类号： H04N19/82 , H04N19/117 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/196 , H04N19/30 , H04N19/44 , H04N19/51 , H04N19/593 , H04N19/70 , H04N19/86
摘要： The present invention provides a method and apparatus for encoding/decoding an image and for adjusting a reconstructed pixel by scaling an offset of an in-loop filter having a scaled offset value. The method includes: obtaining information of a scale default value of a current block from a bitstream; obtaining offset parameter merge information of the current block from the bitstream; obtaining the offset parameter of the current block on the basis of the offset parameter merge information; determining whether a scale residual value of the current block is obtained from the bitstream on the basis of the offset parameter merge information; obtaining a scale value on the basis of the scale default value and the scale residual value; scaling an offset on the basis of the offset parameter and the scale value; and adjusting a pixel value of the current block on the basis of the scaled offset.
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公开(公告)号：US20240323449A1
公开(公告)日：2024-09-26
申请号：US18675857
申请日：2024-05-28
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , CHIPS&MEDIA, INC , INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
发明人： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Wook Je JEONG , Dong Jin PARK , Min Yong JEON , Yung Lyul LEE , Nam Uk KIM , Myung Jun KIM , Ji Youn JUNG , Jae Gon KIM
IPC分类号： H04N19/82 , H04N19/107 , H04N19/176
CPC分类号： H04N19/82 , H04N19/107 , H04N19/176
摘要： An image decoding is performed by steps including: determining whether or not to perform filtering on a boundary of a current block; determining a filtering strength on the boundary of the current block, and a number of samples used in filtering; and performing filtering on the boundary of the current block on the basis of the filtering strength and the number of samples used in filtering, where the number of samples used in filtering is determined on the basis of a size of the current block.
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公开(公告)号：US20240283963A1
公开(公告)日：2024-08-22
申请号：US18651227
申请日：2024-04-30
发明人： Hui Yong KIM , Jin Ho LEE , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC分类号： H04N19/51 , H04N19/105 , H04N19/182 , H04N19/196 , H04N19/42 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/82
CPC分类号： H04N19/51 , H04N19/105 , H04N19/182 , H04N19/196 , H04N19/42 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/82
摘要： An image decoding method according to the present invention includes reconstructing a residual block by inverse-quantizing and inverse-transforming an entropy-decoded residual block, generating a prediction block by performing intra prediction on a current block, and reconstructing an picture by adding the reconstructed residual block to the prediction block, wherein generating the prediction block includes generating a final prediction value of a prediction target pixel included in the current block based on a first prediction value of the prediction target pixel and a final correction value calculated by performing an arithmetic right shift on a two's complementary integer representation for an initial correction value of the prediction target pixel by a binary digit of 1. Accordingly, upon image encoding/decoding, computation complexity may be reduced.
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10.发明公开公开(公告)号：US20240073445A1
公开(公告)日：2024-02-29
申请号：US18504867
申请日：2023-11-08
发明人： Ha Hyun LEE , Jung Won KANG , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Dae Yeon KIM , Dong Jin PARK
IPC分类号： H04N19/55 , H04N19/182 , H04N19/563
CPC分类号： H04N19/55 , H04N19/182 , H04N19/563
摘要： Disclosed is a method of decoding an image and a method of encoding an image. The method of decoding an image includes: obtaining motion-constrained tile set information; determining, on the basis of the motion-constrained tile set information, a first boundary region of a collocated tile set within a reference picture, which corresponds to a motion-constrained tile set; padding a second boundary region corresponding to the first boundary region; and performing inter prediction on the motion-constrained tile set by using a collocated tile set that includes the padded second boundary region.
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