公开(公告)号：US20250095212A1

公开(公告)日：2025-03-20

申请号：US18883222

申请日：2024-09-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Da Yun NAM ,  Seong Yong LIM ,  Hyuk Min KWON ,  Hyun Cheol KIM ,  Joo Myoung SEOK

IPC: G06T9/00

Abstract: A method and a device for transmitting and obtaining dynamic 3-dimensional (3D) avatar data are provided. The method for transmitting dynamic 3D avatar data may include generating a plurality of data elements configuring the dynamic 3D avatar data; performing first encoding and transmission for a first data element of the plurality of data elements; and performing second encoding and transmission for a second data element of the plurality of data elements. Each of at least one of the first data element or the second data element may be divided into a plurality of sub-data elements.

公开(公告)号：US20250024074A1

公开(公告)日：2025-01-16

申请号：US18770991

申请日：2024-07-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Da Yun NAM ,  Seong Yong LIM ,  Hyun Cheol KIM ,  Chae Eun RHEE ,  Yong Wook SEO ,  Hyun Min JUNG

IPC: H04N19/597 ,  G06T17/20 ,  H04N19/117 ,  H04N19/82

Abstract: A method of encoding a dynamic mesh includes creating a base mesh through mesh decimation, subdividing the base mesh, extracting displacement information for the subdivided mesh, and encoding the base mesh and the displacement information. In this instance, mesh subdivision information for subdivision of the base mesh is encoded and signaled.

公开(公告)号：US20240233193A9

公开(公告)日：2024-07-11

申请号：US18489359

申请日：2023-10-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Da Yun NAM ,  Hyun Cheol KIM ,  Jeong Il SEO ,  Seong Yong LIM ,  Chae Eun RHEE ,  Gwang Cheol RYU ,  Yong Wook SEO ,  Hyun Min JUNG

IPC: G06T9/00 ,  G06T19/00

CPC classification number: G06T9/001 ,  G06T19/00 ,  G06T2210/32 ,  G06T2210/36

Abstract: The present invention relates to a method and apparatus for encoding a displacement video using image tiling. A method for encoding multi-dimensional data according to an embodiment of the present disclosure may comprise: converting the multi-dimensional data into one or more frames with two-dimensional characteristics; generating one or more frame groups by grouping the one or more frames with pre-configured number units; reconstructing frames belonging to each frame group into a tiled frame; and generating a bitstream by encoding the tiled frame. Here, the tiled frame may be constructed with one or more blocks, and each block may be constructed by rearranging pixels existing at the same location in the frames.

公开(公告)号：US20200302575A1

公开(公告)日：2020-09-24

申请号：US16822654

申请日：2020-03-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hee Kyung LEE ,  Gi Mun UM ,  Jeong Il SEO ,  Seong Yong LIM ,  Joung Il YUN ,  Won Sik CHEONG

IPC: G06T3/40 ,  G06T19/00 ,  G06F9/48 ,  G06F9/38

Abstract: Disclosed herein is a method of creating an image stitching workflow including acquiring 360-degree virtual reality (VR) image parameters necessary to makes a request for image stitching and create the image stitching workflow, acquiring a list of functions applicable to the image stitching workflow, creating the image stitching workflow based on functions selected from the list of functions, determining the number of media processing entities necessary to perform tasks configuring the image stitching workflow and generating a plurality of media processing entities according to the determined number of media processing entities, and allocating the tasks configuring the image stitching workflow to the plurality of media processing entities.

公开(公告)号：US20190141352A1

公开(公告)日：2019-05-09

申请号：US16179616

申请日：2018-11-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Cheol KIM ,  Seong Yong LIM ,  Joo Myoung SEOK

IPC: H04N19/597 ,  H04N19/119 ,  H04N19/177 ,  H04N19/184

Abstract: Disclosed is a 360 virtual reality (VR) video encoding method. A 360 virtual reality (VR) video encoding method according to the present disclosure includes: dividing the 360 VR video into a plurality of regions based on a division structure of the 360 VR video; generating an region sequence using the divided plurality of regions; generating a bitstream for the generated region sequence; and transmitting the generated bitstream, wherein the region sequence comprises regions having a same position in at least one or more frame included in the 360 VR image.

公开(公告)号：US20190052688A1

公开(公告)日：2019-02-14

申请号：US16166492

申请日：2018-10-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seong Yong LIM ,  Joo Myoung SEOK ,  Sang Woo AHN ,  Yong Ju CHO ,  Ji Hun CHA

IPC: H04L29/06

CPC classification number: H04L65/4084 ,  H04L65/4092 ,  H04L65/601 ,  H04L65/608

Abstract: A method of receiving content in a client is provided. The method may include receiving, from a server, a spatial set identifier (ID) corresponding to a tile group including at least one tile, sending, to the server, a request for first content corresponding to metadata, and receiving, from the server, the first content corresponding to the request.

公开(公告)号：US20180060682A1

公开(公告)日：2018-03-01

申请号：US15662616

申请日：2017-07-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju CHO ,  Soon-heung JUNG ,  Hyun Cheol KIM ,  Jeongil SEO ,  Joo Myoung SEOK ,  Sangwoo AHN ,  Seung Jun YANG ,  Injae LEE ,  Hee Kyung LEE ,  Seong Yong LIM

IPC: G06K9/20 ,  H04N13/02 ,  H04N9/097 ,  G06T3/00

CPC classification number: G06K9/20 ,  G06K9/00771 ,  G06K2009/2045 ,  G06T3/0081 ,  G06T3/4038 ,  H04N5/23238 ,  H04N5/2622 ,  H04N9/097 ,  H04N13/225 ,  H04N13/239 ,  H04N2013/0088

Abstract: Provided is a parallax minimization stitching method and apparatus using control points in an overlapping region. A parallax minimization stitching method may include defining a plurality of control points in an overlapping region of a first image and a second image received from a plurality of cameras, performing a first geometric correction by applying a homography to the control points, defining a plurality of patches based on the control points, and performing a second geometric correction by mapping the patches.

公开(公告)号：US20150029306A1

公开(公告)日：2015-01-29

申请号：US14044405

申请日：2013-10-02

Applicant: Natural University of Sciences & Technology(NUST) ,  Electronics and Telecommunications Research Institute

Inventor： Yong Ju CHO ,  Seong Yong LIM ,  Joo Myoung SEOK ,  Myung Seok KI ,  Ji Hun CHA ,  Rehan HAFIZ ,  Muhammad Murtaza KHAN ,  Ameer HAMZA ,  Arshad ALI

IPC: H04N5/232

CPC classification number: H04N5/23267 ,  G06T7/246 ,  G06T7/33 ,  G06T2207/20016 ,  G06T2207/20021 ,  G06T2207/30241 ,  H04N5/23238 ,  H04N5/23254

Abstract: The present invention proposes a method and apparatus for correcting a motion of panorama video captured by a plurality of cameras. The method of the present invention includes performing global motion estimation for estimating smooth motion trajectories from the panorama video, performing global motion correction for correcting a motion in each frame of the estimated smooth motion trajectories, performing local motion correction for correcting a motion of each of the plurality of cameras for the results in which the motions have been corrected, and performing warping on the results on which the local motion correction has been performed.

Abstract translation: 本发明提出了一种用于校正由多个摄像机拍摄的全景视频的运动的方法和装置。 本发明的方法包括执行全局运动估计，以估计来自全景视频的平滑运动轨迹，执行全局运动校正，用于校正估计的平滑运动轨迹的每帧中的运动，执行局部运动校正以校正每个 对于运动已经被校正的结果的多个摄像机，并且对已经执行了局部运动校正的结果进行翘曲。