公开(公告)号：US11677942B2

公开(公告)日：2023-06-13

申请号：US17510560

申请日：2021-10-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Hui Yong Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Jae Gon Kim ,  Sang Yong Lee

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91 ,  H04N19/147

CPC classification number: H04N19/119 ,  H04N19/105 ,  H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91 ,  H04N19/147

Abstract: The present invention relates to video encoding/decoding methods and device, wherein the video encoding method according to the invention comprises the following steps: acquiring information of peripheral blocks; setting the information about a current block based on the information of the peripheral blocks; and encoding the current block based on the set information, wherein the current block and the peripheral blocks may be a CU (coding unit).

公开(公告)号：US11562757B2

公开(公告)日：2023-01-24

申请号：US17377157

申请日：2021-07-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Kwon Beack ,  Jongmo Sung ,  Mi Suk Lee ,  Tae Jin Lee ,  Woo-taek Lim ,  Inseon Jang ,  Jin Soo Choi

IPC: G10L19/06 ,  G10L19/032

Abstract: An audio signal encoding method performed by an encoder includes identifying a time-domain audio signal in a unit of blocks, quantizing a linear prediction coefficient extracted from a combined block in which a current original block of the audio signal and a previous original block chronologically adjacent to the current original block using frequency-domain linear predictive coding (LPC), generating a temporal envelope by dequantizing the quantized linear prediction coefficient, extracting a residual signal from the combined block based on the temporal envelope, quantizing the residual signal by one of time-domain quantization and frequency-domain quantization, and transforming the quantized residual signal and the quantized linear prediction coefficient into a bitstream.

公开(公告)号：US11539943B2

公开(公告)日：2022-12-27

申请号：US17319175

申请日：2021-05-13

Applicant: Electronics and Telecommunications Research Institute ,  Industry—University Cooperation Foundation Korea Aerospace University ,  Hanbat National University Industry—Academic Cooperation Foundation

Inventor： Jin Ho Lee ,  Sung Chang Lim ,  Jung Won Kang ,  Hyun Suk Ko ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jae Gon Kim ,  Do Hyeon Park ,  Jin Soo Choi ,  Hae Chul Choi

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  G06F17/18 ,  H04N19/91 ,  H04N19/117 ,  H04N19/132 ,  H04N19/119 ,  H04N19/105 ,  H04N19/80 ,  H04N19/513 ,  H04N19/174 ,  H04N19/13

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.

公开(公告)号：US11509930B2

公开(公告)日：2022-11-22

申请号：US16301318

申请日：2017-07-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Jung Won Kang ,  Hyun Suk Ko ,  Ha Hyun Lee ,  Dong San Jun ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/583 ,  H04N19/51 ,  H04N19/105 ,  H04N19/176 ,  H04N19/96 ,  H04N19/132 ,  H04N19/577 ,  H04N19/196 ,  H04N19/513 ,  H04N19/463 ,  H04N19/56

Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: generating a merge candidate list of a current block including at least one merge candidate corresponding to each of a plurality of reference picture lists; determining at least one piece of motion information by using the merge candidate list; and generating a prediction block of the current block by using the determined at least one piece of motion information.

公开(公告)号：US11336901B2

公开(公告)日：2022-05-17

申请号：US17021344

申请日：2020-09-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Ho Lee ,  Hui Yong Kim ,  Sung Chang Lim ,  Jong Ho Kim ,  Ha Hyun Lee ,  Se Yoon Jeong ,  Suk Hee Cho ,  Jin Soo Choi ,  Jin Woong Kim ,  Chie Teuk Ahn

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/117 ,  H04N19/593 ,  H04N19/50 ,  H04N19/126 ,  H04N19/13 ,  H04N19/43 ,  H04N19/61 ,  H04N19/176 ,  H04N19/182

Abstract: An intra prediction method according to the present invention comprises the following steps: performing a directional prediction using at least one of a neighboring pixel of a current block and a left upper corner pixel positioned at a left upper corner of the current block so as to obtain a first prediction value for the current block; obtaining a second prediction value for the current block using the reference sample positioned in the current block; and weighted summing the first prediction value and the second prediction value using a weighting matrix so as to obtain a final prediction value for the current block. According to the present invention, image encoding/decoding efficiency may be improved.

公开(公告)号：US11245917B2

公开(公告)日：2022-02-08

申请号：US16693118

申请日：2019-11-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/52 ,  H04N19/593 ,  H04N19/30 ,  H04N19/597 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/33 ,  H04N19/31 ,  H04N19/34 ,  H04N19/36 ,  H04N19/187

Abstract: According to the present invention, an image decoding method for supporting a plurality of layers includes the steps of: receiving and parsing layer-dependent information for reference layers that can be referenced by a current layer in an entire bitstream; when interlayer prediction is used in decoding a current picture in the current layer, receiving and parsing layer information for a reference layer referenced by the current picture among the reference layers; and decoding the current picture on the basis of the layer information.

公开(公告)号：US11223839B2

公开(公告)日：2022-01-11

申请号：US16857758

申请日：2020-04-24

Applicant: Electronics and Telecommunications Research Institute ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Ho Kim ,  Hui Yong Kim ,  Se Yoon Jeong ,  Sung Chang Lim ,  Ha Hyun Lee ,  Jin Ho Lee ,  Suk Hee Cho ,  Jin Soo Choi ,  Jin Woong Kim ,  Chie Teuk Ahn ,  Mun Churl Kim ,  Bum Shik Lee

IPC: H04N19/593 ,  H04N19/60 ,  H04N19/18 ,  H04N19/44 ,  H04N19/70 ,  H04N19/46 ,  H04N19/64

Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.

公开(公告)号：US11206411B2

公开(公告)日：2021-12-21

申请号：US17072925

申请日：2020-10-16

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.

公开(公告)号：US11202063B2

公开(公告)日：2021-12-14

申请号：US16336219

申请日：2017-09-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Ho Lee ,  Hyun Suk Ko ,  Jung Won Kang ,  Sung Chang Lim ,  Ha Hyun Lee ,  Dong San Jun ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/119 ,  H04N19/186 ,  H04N19/80 ,  H04N19/91 ,  H04N19/593 ,  H04N19/117 ,  H04N19/51 ,  H04N19/159 ,  H04N19/70 ,  H04N19/96 ,  H04N19/172

Abstract: An image encoding/decoding method and apparatus for predicting a second color component block using a first color component block are provided. An image decoding method of the present invention comprises deriving a prediction parameter using the first color component block, and predicting the second color component block using the derived prediction parameter.

公开(公告)号：US11190767B2

公开(公告)日：2021-11-30

申请号：US16877807

申请日：2020-05-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Hui Yong Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Jae Gon Kim ,  Sang Yong Lee

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/196 ,  H04N19/593 ,  H04N19/132 ,  H04N19/157 ,  H04N19/91 ,  H04N19/147

Abstract: The present invention relates to video encoding/decoding methods and device, wherein the video encoding method according to the invention comprises the following steps: acquiring information of peripheral blocks; setting the information about a current block based on the information of the peripheral blocks; and encoding the current block based on the set information, wherein the current block and the peripheral blocks may be a CU (coding unit).