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公开(公告)号：US20170223077A1
公开(公告)日：2017-08-03
申请号：US15488224
申请日：2017-04-14
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.
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2.发明申请RATE ADAPTATION METHOD USING BIT ERROR RATE FOR MULTIMEDIA SERVICE AND APPARATUS THEREFOR 审中-公开使用位错误率进行多媒体服务的速率调整方法及其设备公开(公告)号：US20170063488A1
公开(公告)日：2017-03-02
申请号：US15349709
申请日：2016-11-11
Inventor： Yong Ju CHO , Ji Hun CHA
CPC classification number: H04L1/0011 , H04L1/0002 , H04L1/0009 , H04L1/0014 , H04L1/0033 , H04L1/0041 , H04L1/203
Abstract: Rate adaptation is carried out using bit error rate (BER) to enable effective multimedia transmission. The BER can be estimated using signal strength in a MAC layer and modulation information (FIGS. 7-9), and can be compatibly used in different wireless networks by means of message standardization.
Abstract translation: 使用误码率（BER）进行速率适配，以实现有效的多媒体传输。 可以使用MAC层中的信号强度和调制信息来估计BER（图7-9），并且可以通过消息标准化在不同的无线网络中兼容地使用BER。
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公开(公告)号：US20150009390A1
公开(公告)日：2015-01-08
申请号：US14323509
申请日：2014-07-03
Inventor： Yong Ju CHO , Sang Woo AHN , Joo Myoung SEOK , Seong Yong LIM , Ji Hun CHA
IPC: H04N5/232
CPC classification number: H04N9/3194 , G03B21/147 , H04N9/3147 , H04N9/3182
Abstract: The present specification is related to a method for performing multi-projection and a multi-projection system for minimizing a black offset in a multi-projection environment. The present specification provides the method for performing multi-projection comprising estimating the intensity transfer function (ITF) of a plurality of projectors, calculating an optimal black offset threshold for each of the projectors by using each of the ITFs, and applying the optimal black offset threshold to an image projection by each of the projectors.
Abstract translation: 本说明书涉及用于执行多投影的方法和用于使多投影环境中的黑色偏移最小化的多投影系统。 本说明书提供了用于执行多投影的方法，包括估计多个投影仪的强度传递函数（ITF），通过使用每个ITF计算每个投影仪的最佳黑色偏移阈值，以及应用最佳黑色偏移 每个投影机投影图像的阈值。
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公开(公告)号：US20190052688A1
公开(公告)日：2019-02-14
申请号：US16166492
申请日：2018-10-22
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.
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5.发明申请公开(公告)号：US20180060682A1
公开(公告)日：2018-03-01
申请号：US15662616
申请日：2017-07-28
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
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.
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Patent Agency Ranking
6.发明申请METHOD AND APPARATUS FOR STABILIZING PANORAMA VIDEO CAPTURED BASED ON MULTI-CAMERA PLATFORM 审中-公开用于稳定基于多摄像机平台的全景摄像机的方法和装置公开(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。
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公开(公告)号：US20200372620A1
公开(公告)日：2020-11-26
申请号：US16882089
申请日：2020-05-22
Inventor： Yong Ju CHO , Soon Heung JUNG , Jeong Il SEO
Abstract: The present invention provides a method for image preprocessing, the method including: identifying a plurality of input images to process image registration; selecting at least one transformation method among histogram equalization and gamma transformation in consideration of hue and brightness values of the plurality of input images; processing the histogram equalization on the plurality of input images in response to the histogram equalization method being selected; and processing the gamma transformation on the plurality of input images, in response to the gamma transformation method being selected.
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公开(公告)号：US20200372350A1
公开(公告)日：2020-11-26
申请号：US16879885
申请日：2020-05-21
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INFORMATION TECHNOLOGY UNIVERSITY (ITU)
Inventor： Yong Ju CHO , Jeong Il SEO , Rehan Hafiz , Mohsen Ali , Muhammad Faisal , Aman Irshad
Abstract: Disclosed herein is an image deep learning model training method. The method includes sampling a twin negative comprising a first negative sample and a second negative sample by selecting the first negative sample with a highest similarity out of an anchor sample and a positive sample constituting a matching pair in each class and by selecting the second negative sample with a highest similarity to the first negative sample, and training the samples to minimize a loss of a loss function in each class by utilizing the anchor sample, the positive sample, the first and second negative samples for each class. The first negative sample is selected in a different class from a class comprising the matching pair, and the second negative sample is selected in a different class from classes comprising the matching pair and the first negative sample.
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9.发明申请公开(公告)号：US20160292821A1
公开(公告)日：2016-10-06
申请号：US15089993
申请日：2016-04-04
Applicant: Electronics and Telecommunications Research Institute , National University of Sciences & Technology
Inventor： Yong Ju CHO , Joo Myoung SEOK , Sang Woo AHN , Ji Hun CHA , Arshad ALI , Muhammad MURTAZA , Rehan HAFIZ , Ashar RASUL , Saleh SAEED , Muhammad Umer KAKLI
CPC classification number: G06T3/4038 , G06T7/33 , G06T7/38 , G06T2207/10016
Abstract: An apparatus and a method for displaying a panoramic image using a look-up table (LUT) are disclosed, including generating an LUT may include determining first geometric correction information to transform an input domain pixel coordinate system of an input image to a panorama domain pixel coordinate system of a panoramic image, determining second geometric correction information to transform an output domain pixel coordinate system of an output image of the panoramic image to the panorama domain pixel coordinate system of the panoramic image, determining third geometric correction information to transform the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image based on the first geometric correction information and second geometric correction information, and generating an LUT that maps the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image.
Abstract translation: 公开了一种使用查找表（LUT）显示全景图像的装置和方法，包括生成LUT可以包括确定第一几何校正信息以将输入图像的输入域像素坐标系变换为全景域像素 确定全景图像的坐标系，确定第二几何校正信息以将全景图像的输出图像的输出域像素坐标系变换为全景图像的全景域像素坐标系，确定第三几何校正信息以变换输出域 基于第一几何校正信息和第二几何校正信息将输出图像的像素坐标系统输入到输入图像的输入域像素坐标系，并且生成将输出图像的输出域像素坐标系映射到输入的LUT 输入图像的域像素坐标系。
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10.发明申请APPARATUS AND METHOD FOR DETECTTING KEY POINT USING HIGH-ORDER LAPLACIAN OF GAUSSIAN (LOG) KERNEL 有权使用高斯洛杉矶（LOG）KERNEL的高阶拉普拉斯检测关键点的装置和方法公开(公告)号：US20160267347A1
公开(公告)日：2016-09-15
申请号：US15064800
申请日：2016-03-09
Inventor： Yong Ju CHO , Unsang PARK , Joo Myoung SEOK , Sang Woo AHN , Ji Hun CHA
CPC classification number: G06K9/4671
Abstract: Provided is an apparatus and method for detecting a key point using a high-order Laplacian of Gaussian (LoG) kernel, wherein the method includes generating the high-order LoG kernel using an LoG operator, and detecting a key point of an image using the high-order LoG kernel.
Abstract translation: 提供了一种利用高斯拉普拉斯（LoG）内核检测关键点的装置和方法，其中该方法包括使用LoG算子生成高阶LoG内核，并使用该方法检测图像的关键点 高阶LoG内核。
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