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公开(公告)号:US10958919B2
公开(公告)日:2021-03-23
申请号:US16784714
申请日:2020-02-07
Inventor: Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/70 , H04N19/61 , H04N19/30 , H04N19/31 , H04N19/46 , H04N19/169 , H04N19/124 , H04N19/13 , H04N19/52 , H04N19/593 , H04N19/80 , H04N19/91 , H04N19/182 , H04N19/33 , H04N19/503
Abstract: The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.
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公开(公告)号:US10958918B2
公开(公告)日:2021-03-23
申请号:US16778313
申请日:2020-01-31
Inventor: Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/70 , H04N19/61 , H04N19/30 , H04N19/31 , H04N19/46 , H04N19/169 , H04N19/124 , H04N19/13 , H04N19/52 , H04N19/593 , H04N19/80 , H04N19/91 , H04N19/182 , H04N19/33 , H04N19/503
Abstract: The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.
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公开(公告)号:US10951917B2
公开(公告)日:2021-03-16
申请号:US16725624
申请日:2019-12-23
Inventor: Jin Ho Lee , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Ha Hyun Lee , Jong Ho Kim , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/157 , H04N19/82 , H04N19/105 , H04N19/593 , H04N19/117 , H04N19/176 , H04N19/136 , H04N19/44 , H04N19/182 , H04N19/147
Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction includes the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.
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公开(公告)号:US10950248B2
公开(公告)日:2021-03-16
申请号:US16841428
申请日:2020-04-06
Inventor: Yong Ju Lee , Jeong Il Seo , Jae Hyoun Yoo , Seung Kwon Beack , Jong Mo Sung , Tae Jin Lee , Kyeong Ok Kang , Jin Woong Kim , Tae Jin Park , Dae Young Jang , Keun Woo Choi
IPC: G10L19/008 , H04S7/00
Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
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公开(公告)号:US10939106B2
公开(公告)日:2021-03-02
申请号:US16235878
申请日:2018-12-28
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: H04N19/00 , H04N19/124 , H04N19/196 , H04N19/463 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/14 , H04N19/33
Abstract: 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:US10834418B2
公开(公告)日:2020-11-10
申请号:US16430348
申请日:2019-06-03
Inventor: Hui Yong Kim , Jin Ho Lee , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/51 , H04N19/196 , H04N19/82 , H04N19/513 , H04N19/593 , H04N19/105 , H04N19/182 , H04N19/42 , H04N19/52
Abstract: 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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公开(公告)号:US10708595B2
公开(公告)日:2020-07-07
申请号:US16376492
申请日:2019-04-05
Inventor: Sung Chang Lim , Hui Yong Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N7/12 , H04N19/126 , H04N19/159 , H04N19/61 , H04N19/196 , H04N19/70 , H04N19/50 , H04N19/463 , H04N19/176
Abstract: The present invention relates to a method for encoding and decoding a quantized matrix and an apparatus using same, the method for encoding a quantized matrix according to the present invention comprising the steps of: determining a quantization matrix to be used for quantization and quantizing; determining the prediction method used for the quantization of the quantization matrix; and encoding quantization matrix information on the basis of the determined prediction method, wherein the prediction method can be either a prediction method between coefficients in the quantization matrix or a duplicate of the quantization matrix.
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公开(公告)号:US10701382B2
公开(公告)日:2020-06-30
申请号:US16040222
申请日:2018-07-19
Inventor: Jung Won Kang , Jin Ho Lee , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N7/18 , H04N19/436 , H04N19/30
Abstract: Disclosed are a method and an apparatus for video decoding that support a plurality of layers. The method for video decoding includes acquiring information indicating whether tile information exists and acquiring the tile information based on the information indicating whether tile information exists.
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公开(公告)号:US10694191B2
公开(公告)日:2020-06-23
申请号:US16695685
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: H04N19/00 , 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 , H04N19/176
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:US10536717B2
公开(公告)日:2020-01-14
申请号:US16205945
申请日:2018-11-30
Inventor: Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/593 , H04N19/105 , H04N19/159 , H04N19/11 , H04N19/117 , H04N19/157 , H04N19/182 , H04N19/122 , H04N19/137 , H04N19/82 , H04N19/44 , H04N19/136 , H04N19/80 , H04N19/176 , H04N19/96
Abstract: According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current block so as to generate a final prediction block; and generating a reconstructed block on the basis of a reconstructed differential block corresponding to the current block and on the final prediction block. According to the present invention, image encoding/decoding efficiency can be improved.
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