公开(公告)号：US20210258582A1

公开(公告)日：2021-08-19

申请号：US17224623

申请日：2021-04-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CHIPS&MEDIA, INC.

Inventor： Dae Yeon KIM ,  Sung Chang LIM ,  Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Hui Yong KIM

IPC: H04N19/13 ,  H04N19/103 ,  H04N19/124 ,  H04N19/176 ,  H04N19/70

Abstract: According to an embodiment of the present invention, there is provided an image decoding method including: obtaining an arithmetic-coded symbol stream from an image stream; identifying a symbol segment from the symbol stream according to symbol segment information signaled from an encoding apparatus; selecting an arithmetic decoding process corresponding to the symbol segment; and collectively processing one or more symbols among multiple symbols included in the symbol segment, in association with the selected arithmetic decoding process.

公开(公告)号：US20210235077A1

公开(公告)日：2021-07-29

申请号：US17226310

申请日：2021-04-09

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

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

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/129 ,  H04N19/186 ,  H04N19/159 ,  H04N19/12 ,  H04N19/18

Abstract: The present invention relates to an encoding method and decoding method, and a device using the same. The encoding method according to the present invention comprises the steps of: specifying an intra prediction mode for a current block; and scanning a residual signal by intra prediction of the current block, wherein the step of scanning the residual signal can determine a scanning type for a luminance signal and a chroma signal of the current block according to an intra prediction mode for a luminance sample of the current block.

公开(公告)号：US20210233282A1

公开(公告)日：2021-07-29

申请号：US17124226

申请日：2020-12-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soo Woong KIM ,  Jung Won KANG ,  Gun BANG ,  Jin Ho LEE ,  Ha Hyun LEE ,  Sung Chang LIM

IPC: G06T9/00 ,  G06T17/20 ,  G06T15/04 ,  G06T15/20

Abstract: The present disclosure provides a multi-view image decoding method including: obtaining, from a bitstream, three-dimensional geometry information indicating a three-dimensional space of a multi-view image, view independent component information indicating a view independent component, which is uniformly applied to every view, and view dependent component information indicating a view dependent component, which is differently applied according to views; determining a view dependent component for a texture map of a current view from the view dependent component information; generating the texture map of the current view from a view independent component of the view independent component information and the determined view dependent component for the current view; and reconstructing a current view image according to a three-dimensional space that is constructed according to the texture map of the current view and the three-dimensional geometry information.

公开(公告)号：US20210227222A1

公开(公告)日：2021-07-22

申请号：US17251423

申请日：2019-06-12

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY

Inventor： Jin Ho LEE ,  Jung Won KANG ,  Ha Hyun LEE ,  Sung Chang LIM ,  Hui Yong KIM ,  Jae Gon KIM ,  Do Hyeon PARK ,  Yong Uk YOON ,  Yung Lyul LEE

IPC: H04N19/13 ,  H04N19/184 ,  H04N19/172

Abstract: There is provided an video encoding/decoding method and apparatus. The video decoding method comprises acquiring a bitstream including a predetermined context element, performing at least one of a context model determination, a probability update, and a probability interval determination on the predetermined syntax element, and arithmetically decoding the predetermined syntax element on the basis of a result of the performance.

公开(公告)号：US20210227221A1

公开(公告)日：2021-07-22

申请号：US17256150

申请日：2019-06-25

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Sung Chang LIM ,  Jung Won KANG ,  Ha Hyun LEE ,  Jin Ho LEE ,  Hui Yong KIM ,  Yung Lyul LEE ,  Myung Jun KIM ,  Nam Uk KIM ,  Ji Youn JUNG ,  Yang Woo KIM ,  Jae Gon KIM

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/119

Abstract: There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding size information of a quantization group from a bitstream, acquiring a delta quantization parameter of a current block on the basis of the size information of the quantization group, and deriving a quantization parameter for the current block on the basis of the delta quantization parameter.

公开(公告)号：US20210217229A1

公开(公告)日：2021-07-15

申请号：US17111234

申请日：2020-12-03

Applicant: Electronics and Telecommunications Research Institute ,  HANDONG GLOBAL UNIVERCITY INDUSTRY- ACADEMIC COOPERATION FOUNDATION

Inventor： Ha Hyun LEE ,  Jung Won KANG ,  Soo Woong KIM ,  Gun BANG ,  Jin Ho LEE ,  Sung Chang LIM ,  Sung Soo HWANG ,  Se Hui KANG ,  Ji Won MOON ,  Mu Hyun BACK ,  Jin Kyu LEE ,  Hyun Min HAN

IPC: G06T17/00 ,  G06T7/90 ,  G06T7/50

Abstract: The present invention relates to a plenoptic cloud generation method, the method of generating a plenoptic point cloud according to one embodiment of the present invention, the method comprises, obtaining a two-dimensional (2D) image for each view and depth information obtained from a plurality of cameras, determining a method of generating a plenoptic point cloud and generating the plenoptic point cloud by applying the determined method of generating the plenoptic point cloud to at least one of the 2D image for each view or the depth information, wherein the method of generating the plenoptic point cloud includes at least one of a simultaneous generation method of the point cloud and a sequential generation method of the point cloud.

公开(公告)号：US20210195188A1

公开(公告)日：2021-06-24

申请号：US17130614

申请日：2020-12-22

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY ,  HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Jin Ho LEE ,  Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Ha Hyun LEE ,  Dong San JUN ,  Seung Hyun CHO ,  Hui Yong KIM ,  Hae Chul CHOI ,  Aram BACK ,  Jin Soo CHOI ,  Jae Gon KIM

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.

公开(公告)号：US20210037249A1

公开(公告)日：2021-02-04

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: H04N19/159 ,  H04N19/52 ,  H04N19/436 ,  H04N19/593 ,  H04N19/503 ,  H04N19/105 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/15 ,  H04N19/51 ,  H04N19/61

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：US20210037239A1

公开(公告)日：2021-02-04

申请号：US17072942

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: H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/503 ,  H04N19/159 ,  H04N19/513 ,  H04N19/139 ,  H04N19/103 ,  H04N19/52

Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of: determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.

公开(公告)号：US20200382784A1

公开(公告)日：2020-12-03

申请号：US16998463

申请日：2020-08-20

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 ,  H04N19/70 ,  H04N19/122 ,  H04N19/159 ,  H04N19/119 ,  H04N19/136 ,  H04N19/61 ,  H04N19/593 ,  H04N19/625 ,  H04N19/124 ,  H04N19/157 ,  H04N19/44

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.