公开(公告)号：US20210067757A1

公开(公告)日：2021-03-04

申请号：US17006389

申请日：2020-08-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kug Jin YUN ,  Jun Young JEONG ,  Gwang Soon LEE ,  Hong Chang SHIN ,  Ho Min EUM

IPC: H04N13/161 ,  H04N13/178 ,  H04N13/282 ,  G06T15/20

Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method includes: determining a priority order of pruning for source videos; extracting patches from the source videos based on the priority order of pruning; generating at least one atlas based on the extracted patches; and encoding metadata. Herein, a first flag indicating whether or not an atlas includes a patch including information on an entire region of a first source video may be encoded into the metadata.

公开(公告)号：US20200275134A1

公开(公告)日：2020-08-27

申请号：US16309595

申请日：2017-07-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gun BANG ,  Kug Jin YUN ,  Youngsoo PARK

IPC: H04N21/218 ,  H04N21/63 ,  H04N21/2343

Abstract: An apparatus for providing a 360 degree virtual reality broadcasting service uses an image acquired through a 3D virtual reality (VR) camera to transmit a 360 degree full image stream having first resolution and transmits an image stream of a view of interest (Vol) region having second resolution different from the first resolution according to a user selection mode and move information if the user selection mode and the movement information are received from a receiving apparatus.

公开(公告)号：US20190089943A1

公开(公告)日：2019-03-21

申请号：US16135275

申请日：2018-09-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joung Il YUN ,  Sang Woon KWAK ,  Kug Jin YUN ,  Jin Hwan LEE ,  Won Sik CHEONG

IPC: H04N13/117 ,  G06T7/593 ,  G02B27/01 ,  H04N19/597 ,  H04N13/332

CPC classification number: H04N13/117 ,  G02B27/017 ,  G02B2027/0134 ,  G06T7/593 ,  H04N13/332 ,  H04N19/39 ,  H04N19/597 ,  H04N2013/0081

Abstract: Disclosed is a method and apparatus for providing an omni-directional stereoscopic image based on layer projection. According to an embodiment of the present disclosure, there is provided a method of providing an omni-directional stereoscopic image based on layer projection, the method including: obtaining a spatial-information-point set; and generating a layer image based on a spatial-information-point subset constructed for each of multiple layers, the layer image corresponding to each of the multiple layers, wherein the spatial-information-point subset constructed for each of two consecutive layers includes one or more duplicate spatial information points.

公开(公告)号：US20180131974A1

公开(公告)日：2018-05-10

申请号：US15861289

申请日：2018-01-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Young LEE ,  Kug Jin YUN ,  Won Sik CHEONG ,  Nam Ho HUR

IPC: H04N21/2387 ,  H04N21/236

CPC classification number: H04N21/2387 ,  H04N21/23614

Abstract: Provided is a method of supporting a random access of MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining an initialization flag indicating whether the at least one access unit includes all of data required for initialization of a decoding process, in the at least one MPU; and inserting the initialization flag into a header of the at least one MPU.

公开(公告)号：US20140112395A1

公开(公告)日：2014-04-24

申请号：US14059913

申请日：2013-10-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gwang Soon LEE ,  Kug Jin YUN ,  Jin Young LEE ,  Hyun Jeong YIM ,  Eung Don LEE ,  Won Sik CHEONG ,  Nam Ho HUR

IPC: H04N19/89

CPC classification number: H04N19/44 ,  H04N19/597 ,  H04N21/23406 ,  H04N21/242 ,  H04N21/8451

Abstract: Disclosed is a transport device in a video system which uses a hybrid video codec. The transport device includes a first video encoder which encodes a first video using a first video codec, a second video encoder which encodes a second video using a second video codec, and a delay buffer for synchronizing a delay time for the first video and the second video, based on a buffer size of if a first transport stream system target decoder (T-STD) stipulated in the first video encoder and a buffer size of a second T-STD stipulated in the second video encoder.

Abstract translation: 公开了使用混合视频编解码器的视频系统中的传输设备。 传输设备包括使用第一视频编解码器对第一视频进行编码的第一视频编码器，使用第二视频编解码器对第二视频进行编码的第二视频编码器以及用于同步第一视频和第二视频编码器的延迟时间的延迟缓冲器 视频，基于第一视频编码器中规定的第一传输流系统目标解码器（T-STD）的缓冲器大小和第二视频编码器中规定的第二T-STD的缓冲器大小。

公开(公告)号：US20230032884A1

公开(公告)日：2023-02-02

申请号：US17787853

申请日：2020-12-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Won Sik CHEONG ,  Kug Jin YUN

IPC: H04N19/136 ,  H04N19/174 ,  H04N19/172

Abstract: Disclosed herein are a video encoding/decoding method and apparatus. The video decoding method according to the present disclosure includes: when a current picture is composed of a plurality of tiles and a current tile among the plurality of tiles is partitioned into a plurality of slices, decoding information on the number of slices in tile that indicates the number of the plurality of slices comprised in the current tile; decoding information on a slice height in tile that indicates a height of the plurality of slices comprised in the current tile; and determining the number of the plurality of slices comprised in the current tile and a height of the plurality of slices comprised in the current tile.

公开(公告)号：US20210360218A1

公开(公告)日：2021-11-18

申请号：US17321213

申请日：2021-05-14

Applicant: Electronics and Telecommunications Research Institute ,  SOGANG UNIVERSITY RESEARCH & BUSINESS DEVELOPMENT FOUNDATION

Inventor： Joon Soo KIM ,  Kug Jin YUN ,  Jun Young JEONG ,  Suk Ju KANG ,  Jung Hee KIM ,  Yeo Hun YUN

IPC: H04N13/128 ,  H04N13/167 ,  H04N13/282

Abstract: Disclosed herein is a method for rectifying a 2D multi-view image. The method for rectifying a 2D multi-view image according to an embodiment of the present disclosure may include: detecting uniformly the at least one feature point in each region unit distinguished by considering a distribution of feature points of a plurality of input images: removing an error of the least one feature point; determining a corresponding pair for a vertical or horizontal direction of the at least one feature point; by considering an arrangement relationship of the plurality of input images, projecting the at least one feature point onto a projection plane; determining a disparity error for a corresponding pair for the at least one feature point that is projected onto the projection plane; and, by considering the disparity error, performing image rectification based on the at least one feature point.

公开(公告)号：US20210006830A1

公开(公告)日：2021-01-07

申请号：US16823617

申请日：2020-03-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kug Jin YUN ,  Jun Young JEONG ,  Gwang Soon LEE ,  Hong Chang SHIN ,  Ho Min EUM ,  Sang Woon KWAK

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/167 ,  H04N13/178 ,  H04N13/161

Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method may include classifying a multiplicity of source view videos into base view videos and additional view videos, generating residual data for the additional view videos, packing a patch, which is generated based on the residual data, into an altas video, and generating metadata for the patch.

公开(公告)号：US20190110088A1

公开(公告)日：2019-04-11

申请号：US16216698

申请日：2018-12-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Young LEE ,  Kug Jin YUN ,  Won Sik CHEONG ,  Nam Ho HUR

IPC: H04N21/2387 ,  H04N21/236

Abstract: Provided is a method of supporting a random access of MPEG data, the method including: obtaining at least one access unit including media data coded through processing including an encapsulation and a packetization; generating at least one media processing unit (MPU) by grouping at least one access unit; determining an initialization flag indicating whether the at least one access unit includes all of data required for initialization of a decoding process, in the at least one MPU; and inserting the initialization flag into a heade

公开(公告)号：US20170230672A1

公开(公告)日：2017-08-10

申请号：US15424453

申请日：2017-02-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kug Jin YUN ,  Cheol Min KIM ,  Gwang Soon LEE ,  Youngil LEE ,  Jun Geun JEON ,  Namho HUR

IPC: H04N19/172 ,  H04N19/46 ,  H04N19/105 ,  H04L12/26 ,  H04N19/152

CPC classification number: H04N19/172 ,  H04L43/0858 ,  H04N19/105 ,  H04N19/152 ,  H04N19/46 ,  H04N21/44004 ,  H04N21/4622

Abstract: Provided are a method of buffering a media transport stream in a heterogeneous network environment and an image receiving apparatus using the same. A first transport stream corresponding to a first image through a first network is received and a second transport stream corresponding to a second image through a second network is received. The first image corresponding to the first transport stream is buffered based on a preset minimum transmission delay difference, and then the buffered first image and the second image corresponding to the second transport stream are processed.