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公开(公告)号：US20180324448A1
公开(公告)日：2018-11-08
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: 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：US20180324433A1
公开(公告)日：2018-11-08
申请号：US16034577
申请日：2018-07-13
Inventor： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/126 , H04N19/18 , H04N19/463
CPC classification number: H04N19/126 , H04N19/129 , H04N19/176 , H04N19/18 , H04N19/44 , H04N19/463 , H04N19/60 , H04N19/61 , H04N19/70 , H04N19/96
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：US20180316925A1
公开(公告)日：2018-11-01
申请号：US16018522
申请日：2018-06-26
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 , H04N19/436 , H04N19/122 , H04N19/124 , H04N19/176
CPC classification number: H04N19/159 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/124 , H04N19/13 , H04N19/15 , H04N19/176 , H04N19/436 , H04N19/503 , H04N19/51 , H04N19/52 , H04N19/593 , 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：US20180316919A1
公开(公告)日：2018-11-01
申请号：US16013419
申请日：2018-06-20
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/117 , H04N19/14 , H04N19/30 , H04N19/176 , H04N19/80 , H04N19/159
CPC classification number: H04N19/117 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/14 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/30 , H04N19/51 , H04N19/61 , H04N19/80
Abstract: A video decoding method according to an embodiment of the present invention may include determining a type of a filter to be applied to a first-layer picture which a second-layer picture as a decoding target refers to; determining a filtering target of the first-layer picture to which the filter is applied; filtering the filtering target based on the type of the filter; and adding the filtered first-layer picture to a second-layer reference picture list. Accordingly, the video decoding method and an apparatus using the same may reduce a prediction error in an upper layer and enhance encoding efficiency.
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公开(公告)号：US20180316913A1
公开(公告)日：2018-11-01
申请号：US15772284
申请日：2016-11-18
Inventor： Dong San JUN , Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Jin Ho LEE , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/103 , H04N19/146 , H04N19/159 , H04N19/91 , H04N19/167 , H04N19/44
CPC classification number: H04N19/103 , H04N19/146 , H04N19/167 , H04N19/44
Abstract: Provided are method and apparatus methods and apparatuses for encoding an intra-prediction mode based on a secondary IPM. The present invention may comprises a first decision step of determining whether an intra-prediction mode of a current block is included in a first candidate mode set including M candidate modes (M is an integer equal to or greater than 1); a second decision step of determining whether the intra-prediction mode of the current block is included in a second candidate mode set including N candidate modes (N is an integer equal to or greater than 1) based on a first determination result representing a determination result of the first decision step; and an intra prediction mode encoding step of encoding the intra-prediction mode of the current block based on the first determination result or a second determination result representing a determination result of the second decision step.
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Patent Agency Ranking
公开(公告)号：US20180288421A1
公开(公告)日：2018-10-04
申请号：US15933040
申请日：2018-03-22
Inventor： Ha Hyun LEE , Jung Won KANG , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/159 , H04N19/70 , H04N19/187 , H04N19/30 , H04N19/172 , H04N19/184
CPC classification number: H04N19/159 , H04N19/172 , H04N19/184 , H04N19/187 , H04N19/30 , H04N19/70 , H05K999/99
Abstract: A method of decoding a image according to an embodiment of the present invention, which supports a plurality of layers, may comprise the steps of: receiving information on a reference layer used to decode a current picture for inter-layer prediction; inducing the number of valid reference layer pictures used to decode the current picture on the basis of the information on the reference layer; and performing inter-layer prediction on the basis of the number of valid reference layer pictures.
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公开(公告)号：US20180213227A1
公开(公告)日：2018-07-26
申请号：US15928878
申请日：2018-03-22
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University , Korea Advanced Institute of Science and Technology
Inventor： Sung-Chang LIM , Ha Hyun LEE , Hui Yong KIM , Se Yoon JEONG , Suk Hee CHO , Hae Chul CHOI , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woo HONG , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Mun Churl KIM , Neung Joo HWANG , Sea Nae PARK
IPC: H04N19/122 , H04N19/124 , H04N19/176 , H04N19/625 , H04N19/11 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/615 , H04N19/107 , H04N19/91 , H04N19/119 , H04N19/13 , H04N19/139 , H04N19/159 , H04N19/44 , H04N19/182 , H04N19/18 , H04N19/14 , H04N19/12 , H04N19/60 , H04N19/50
CPC classification number: H04N19/122 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/60 , H04N19/615 , H04N19/625 , H04N19/91
Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
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378.发明申请公开(公告)号：US20180176554A1
公开(公告)日：2018-06-21
申请号：US15897440
申请日：2018-02-15
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Se Yoon JEONG , Hui Yong KIM , Sung Chang LIM , Jin Ho LEE , Ha Hyun LEE , Jong Ho KIM , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Gwang Hoon PARK , Kyung Yong KIM , Han Soo LEE , Tae Ryong KIM
IPC: H04N19/10 , H04N19/61 , H04N19/105 , H04N19/196
CPC classification number: H04N19/10 , H04N19/105 , H04N19/136 , H04N19/196 , H04N19/197 , H04N19/46 , H04N19/61
Abstract: According to one embodiment of the present invention, a video information encoding method comprises: a step of predicting information of the current coding unit to generate prediction information; and a step of determining whether the information of the current coding unit coincides with the prediction information. If the information of the current coding unit coincides with the prediction information, a flag indicating that the information of the current coding unit coincides with the prediction information is encoded and transmitted. If the information of the current coding unit does not coincide with the prediction information, a flag indicating that the information of the current coding unit does not coincide with the prediction information is encoded and transmitted and the information of the current coding unit is encoded and transmitted. In the step of generating prediction information, the prediction information may be generated using the information on the coding unit adjacent to the current coding unit.
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公开(公告)号：US20180152730A1
公开(公告)日：2018-05-31
申请号：US15878741
申请日：2018-01-24
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIC COOPERATION GROUP OF SEJONG UNIVERSITY
Inventor： Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Jong Ki HAN , Jae Yung LEE
IPC: H04N19/597 , H04N19/105 , H04N19/70 , H04N19/31 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/184 , H04N19/177
CPC classification number: H04N19/597 , H04N19/105 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/184 , H04N19/31 , H04N19/70
Abstract: The present invention is related to a method for moving the position of a base view from an arbitrary GOP (Group Of Pictures) start position to implement an efficient encoding structure in multi-view video encoding. The existing multi-view video encoding method exhibits low encoding efficiency when correlation between the base view and a dependent view is low, since the base view is assumed to be fixed. Moreover, in case the view in a live broadcasting program desired by a producer changes from the base view to another, the user has to consume more bit streams and decoder complexity than those consumed when decoding is performed with respect to the base view. Therefore, to alleviate the drawbacks of the existing multi-view video encoding method, the present invention provides a method for designing syntax elements by which the base view can be moved, thereby supporting an efficient encoding structure.
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公开(公告)号：US20180048912A1
公开(公告)日：2018-02-15
申请号：US15798024
申请日：2017-10-30
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: H04N19/593 , H04N19/117 , H04N19/105 , H04N19/176 , H04N19/182
CPC classification number: H04N19/593 , H04N19/105 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/44 , H04N19/82
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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