公开(公告)号：US20180352252A1

公开(公告)日：2018-12-06

申请号：US16059378

申请日：2018-08-09

Applicant: Electronics and Telecommunications Research Institute

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 ,  H04N19/82 ,  H04N19/44 ,  H04N19/157 ,  H04N19/117 ,  H04N19/176 ,  H04N19/105 ,  H04N19/136 ,  H04N19/147 ,  H04N19/182

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.

公开(公告)号：US20180352251A1

公开(公告)日：2018-12-06

申请号：US16057551

申请日：2018-08-07

Applicant: Electronics and Telecommunications Research Institute

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 ,  H04N19/82 ,  H04N19/44 ,  H04N19/157 ,  H04N19/117 ,  H04N19/176 ,  H04N19/105 ,  H04N19/136 ,  H04N19/147 ,  H04N19/182

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.

公开(公告)号：US20180324447A1

公开(公告)日：2018-11-08

申请号：US16039766

申请日：2018-07-19

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20180324430A1

公开(公告)日：2018-11-08

申请号：US16034506

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：US20180213237A1

公开(公告)日：2018-07-26

申请号：US15933010

申请日：2018-03-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ha Hyun LEE ,  Jung Won KANG ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/159 ,  H04N19/187 ,  H04N19/184 ,  H04N19/30 ,  H04N19/172

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.

公开(公告)号：US20180199040A1

公开(公告)日：2018-07-12

申请号：US15913099

申请日：2018-03-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Jin Ho LEE ,  Hui Yong KIM ,  Sung Chang LIM ,  Jin Soo CHOI ,  Jin woong KIM ,  Jae Gon KIM ,  Hae Chul CHOI ,  Sang Yong LEE

IPC: H04N19/157 ,  H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/196 ,  H04N19/176

CPC classification number: H04N19/157 ,  H04N19/11 ,  H04N19/176 ,  H04N19/198 ,  H04N19/593 ,  H04N19/70

Abstract: An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.

公开(公告)号：US20180152731A1

公开(公告)日：2018-05-31

申请号：US15879041

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.

公开(公告)号：US20180115783A1

公开(公告)日：2018-04-26

申请号：US15805861

申请日：2017-11-07

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: H04N19/573 ,  H04N19/30

CPC classification number: H04N19/573 ,  H04N19/30

Abstract: This document discloses a method and apparatus for image encoding/decoding which support multiple layers. The method for image decoding comprises analyzing a video parameter set (VPS) extension for layer dependency on a current layer, analyzing slices for layer dependency on a current slice by determining whether not to apply layer dependency to the current slice or to apply new layer dependency to the current slice, the new layer dependency determining within a range of layer dependency analyzed from the VPS extension, and constructing a reference picture list about the current layer based on at least one of layer dependency analyzed from the VPS extension and layer dependency analyzed from the slice.

公开(公告)号：US20170289548A1

公开(公告)日：2017-10-05

申请号：US15630831

申请日：2017-06-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong KIM ,  Sung Chang LIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM ,  Gwang Hoon PARK ,  Kyung Yong KIM

IPC: H04N19/129 ,  H04N19/176 ,  H04N19/157 ,  H04N19/44

CPC classification number: H04N19/129 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70

Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.

公开(公告)号：US20170142420A1

公开(公告)日：2017-05-18

申请号：US15342751

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: H04N19/159 ,  H04N19/436 ,  H04N19/122 ,  H04N19/124

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.