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351.发明申请公开(公告)号：US20210168362A1
公开(公告)日：2021-06-03
申请号：US17174788
申请日：2021-02-12
Inventor： Dong San JUN , Jin Ho LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/11 , H04N19/176 , H04N19/593
Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method of the present invention comprises decoding first information indicating whether a maximum of N intra prediction modes are used or a maximum of M intra prediction modes are used for an intra prediction for a current block, in which the M is smaller than the N, deriving an intra prediction mode of the current block, inverse-mapping the derived intra prediction mode on a corresponding intra prediction mode among the maximum N intra prediction modes when the decoded first information indicates that the maximum M intra prediction modes are used for the intra prediction for the current block, and generating an intra prediction block by performing an intra prediction for the current block, based on the inverse-mapped intra prediction mode.
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公开(公告)号：US20210152815A1
公开(公告)日：2021-05-20
申请号：US17160845
申请日：2021-01-28
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Jin Ho LEE , Dong San JUN , Hui Yong KIM , Gwang Hoon PARK , Jin Soo CHOI , Tae Hyun KIM , Dae Young LEE , Young Su HEO
IPC: H04N19/105 , H04N19/147 , H04N19/159 , H04N19/176
Abstract: A method and apparatus use a geometric modified image for video encoding/decoding. The encoding method may include: generating a geometric modified reference picture by geometrically modifying a reference picture; generating a prediction block of a current block within an encoding target picture by performing inter prediction by referencing the reference picture or the geometrically modified reference picture; and encoding inter-prediction information of the current block.
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公开(公告)号：US20210136383A1
公开(公告)日：2021-05-06
申请号：US17144477
申请日：2021-01-08
Inventor： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/126 , H04N19/176 , H04N19/70 , H04N19/129 , H04N19/61 , H04N19/463 , H04N19/18 , H04N19/44 , H04N19/60
Abstract: A method and a device for encoding/decoding an image are disclosed. The method for decoding an image comprises the steps of: decoding information on a quantization matrix; and restoring the quantization matrix on the basis of the information on the quantization matrix, wherein the information on the quantization matrix includes information indicating a DC value of the quantization matrix and/or information indicating differential values of quantization matrix coefficients.
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公开(公告)号：US20210021818A1
公开(公告)日：2021-01-21
申请号：US16979495
申请日：2019-03-08
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM
IPC: H04N19/117 , H04N19/82 , H04N19/132 , H04N19/159 , H04N19/105 , H04N19/176
Abstract: There is provided an image encoding/decoding method and apparatus. The image encoding method of the present invention includes: determining whether or not to apply filtering to a filtering target sample; determining a filter type on the basis of the determination; and applying filtering to the filtering target sample by using the determined filter type.
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355.发明申请公开(公告)号：US20210021810A1
公开(公告)日：2021-01-21
申请号：US16982493
申请日：2019-03-18
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Gwang Hoon PARK , Tae Hyun KIM , Dae Young LEE
IPC: H04N19/105 , H04N19/61 , H04N19/159 , H04N19/176
Abstract: There is provided an image encoding/decoding method and apparatus. The image encoding method of the present invention includes: generating at least one candidate block including warped reference picture (WRP) Flag information in an advanced motion vector prediction (AMVP) mode; constructing a candidate list including the at least one candidate block; and generating a prediction block of a current block based on the candidate list.
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Patent Agency Ranking
公开(公告)号：US20200275124A1
公开(公告)日：2020-08-27
申请号：US16496581
申请日：2018-04-27
Inventor： Hyun Suk KO , Sung Chang LIM , Jung Won KANG , Jin Ho LEE , Ha Hyun LEE , Dong San JUN , Hui Yong KIM
IPC: H04N19/593 , H04N19/176 , H04N19/184
Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.
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公开(公告)号：US20200275106A1
公开(公告)日：2020-08-27
申请号：US15930778
申请日：2020-05-13
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Gwang Hoon PARK , Kyung Yong KIM , Sang Min KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/159 , H04N19/52 , H04N19/436 , H04N19/593 , H04N19/503 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/124 , H04N19/13 , H04N19/15 , H04N19/51 , H04N19/61
Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.
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公开(公告)号：US20200228825A1
公开(公告)日：2020-07-16
申请号：US16829241
申请日：2020-03-25
Inventor： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/52
Abstract: A method for decoding an image according to the present invention comprises the steps of: decoding a residual block by quantizing and inverse transforming an entropy-decoded residual block; generating a prediction block via motion compensation; and decoding an image by adding the decoded residual block to the prediction block, wherein on the basis of the maximum number of motion vector candidates of the motion vector candidate list related to the prediction block, a motion vector candidate list is adjusted by adding a particular motion vector candidate or by discarding a portion from among the motion vector candidates, and in the prediction block generation step, a prediction motion vector of the prediction block is determined on the basis of the adjusted motion vector candidate list. Accordingly, the complexity of arithmetic operations is reduced during encoding/decoding of an image.
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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
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University
Inventor： 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: H04N19/117 , H04N19/46 , H04N19/593 , H04N19/132 , H04N19/176 , H04N19/17 , H04N19/50 , H04N19/109 , H04N19/159 , H04N19/174 , H04N19/192 , H04N19/82
Abstract: 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：US20200145666A1
公开(公告)日：2020-05-07
申请号：US16695666
申请日：2019-11-26
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Gwang Hoon PARK , Kyung Yong KIM , Sang Min KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/159 , H04N19/61 , H04N19/51 , H04N19/15 , H04N19/13 , H04N19/124 , H04N19/122 , H04N19/117 , H04N19/105 , H04N19/503 , H04N19/593 , H04N19/436 , H04N19/52
Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.
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