公开(公告)号：US20180324432A1

公开(公告)日：2018-11-08

申请号：US16034557

申请日：2018-07-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/126 ,  H04N19/18 ,  H04N19/463

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.

公开(公告)号：US20180324431A1

公开(公告)日：2018-11-08

申请号：US16034534

申请日：2018-07-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/126 ,  H04N19/18 ,  H04N19/463

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.

公开(公告)号：US20180310002A1

公开(公告)日：2018-10-25

申请号：US16018324

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 ,  H04N19/13 ,  H04N19/105 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/61 ,  H04N19/52

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.

公开(公告)号：US20180176555A1

公开(公告)日：2018-06-21

申请号：US15897512

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.

公开(公告)号：US20180077418A1

公开(公告)日：2018-03-15

申请号：US15814030

申请日：2017-11-15

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.

公开(公告)号：US20180070082A1

公开(公告)日：2018-03-08

申请号：US15806574

申请日：2017-11-08

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

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

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：US20180063524A1

公开(公告)日：2018-03-01

申请号：US15799086

申请日：2017-10-31

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ha Hyun LEE ,  Hui Yong KIM ,  Sung Chang LIM ,  Jong Ho KIM ,  Jin Ho LEE ,  Se Yoon JEONG ,  Suk Hee CHO ,  Jin Soo CHOI ,  Jin Woong KIM ,  Chie Teuk AHN

IPC: H04N19/107 ,  H04N19/91 ,  H04N19/593 ,  H04N19/159 ,  H04N19/52 ,  H04N19/105 ,  H04N19/513 ,  H04N19/137 ,  H04N19/70 ,  H04N19/50 ,  H04N19/169 ,  H04N19/157 ,  H04N19/11 ,  H04N19/61 ,  H04N19/13 ,  H04N19/196 ,  H04N19/176 ,  H04N19/109

CPC classification number: H04N19/107 ,  H04N19/105 ,  H04N19/109 ,  H04N19/11 ,  H04N19/13 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/1887 ,  H04N19/196 ,  H04N19/50 ,  H04N19/52 ,  H04N19/521 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: An intra prediction method according to the present invention comprises the following steps: deriving neighboring prediction mode information from a left neighboring prediction mode and a top neighboring prediction mode; deriving an intra prediction mode for a target unit to be decoded, using the derived neighboring prediction mode information; and performing intra prediction for the target unit to be decoded, based on the intra prediction mode. According to the present invention, video encoding/decoding efficiency may be improved.

公开(公告)号：US20180014023A1

公开(公告)日：2018-01-11

申请号：US15694569

申请日：2017-09-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Se Yoon JEONG ,  Jong Ho KIM ,  Hui Yong KIM ,  Dae Yeol LEE ,  Suk Hee CHO ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/186 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

CPC classification number: H04N19/186 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

Abstract: The present invention provides an image encoding apparatus carrying out inter-color prediction, comprising a residual block acquisition module obtaining a residual block with respect to a first color component and a residual block with respect to a second color component from a difference between an input block and a prediction block; an inter-color component prediction module carrying out inter-color component prediction by generating a residual signal reflecting a difference between a residual block with respect to the first color component and a residual block with respect to the second color component; a transform module generating a transformat coefficient by carrying out transformation with respect to the residual signal; a quantization module generating quantized data by carrying out quantization with respect to the transform coefficient; and an entropy encoding module carrying out entropy encoding by removing statistical redundancy of the quantized data.

公开(公告)号：US20170223355A1

公开(公告)日：2017-08-03

申请号：US15489290

申请日：2017-04-17

Applicant: Electronics and Telecommunications Research Institute

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: H04N19/124 ,  H04N19/196 ,  H04N19/176 ,  H04N19/14 ,  H04N19/70 ,  H04N19/463 ,  H04N19/119

CPC classification number: H04N19/124 ,  H04N19/119 ,  H04N19/14 ,  H04N19/176 ,  H04N19/196 ,  H04N19/33 ,  H04N19/463 ,  H04N19/70

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.

公开(公告)号：US20170054995A1

公开(公告)日：2017-02-23

申请号：US15342721

申请日：2016-11-03

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: H04N19/513 ,  H04N19/436

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.

Abstract translation: 本发明涉及共享候选列表的方法和装置。 一种生成用于预测块的合并候选列表的方法可以包括：基于包括执行并行合并处理的预测块的编码块，生成空间合并候选和时间合并候选中的至少一个 的预测块; 以及基于所生成的合并候选来生成编码块的单个合并候选列表。 因此，通过在多个预测块上并行执行画面间预测，可以提高编码和解码的处理速度。