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公开(公告)号：US10692262B2
公开(公告)日：2020-06-23
申请号：US15868534
申请日：2018-01-11
Inventor： Seong Yong Lim , Yong Ju Cho , Jeong Il Seo , Joo Myoung Seok
Abstract: Disclosed is an apparatus and method for processing information of multiple cameras. The apparatus for processing information of multiple cameras according to an embodiment of the present disclosure includes: multiple cameras obtaining an image containing at least one object; a location information identification unit identifying location information between the at least one object and one of the multiple cameras, the location information identification unit being provided in each of the multiple cameras, wherein the location information comprises a device identifier identifying the location information identification unit and a location data between the at least one object and one of the multiple cameras; and an image processor processing image information obtained from the multiple cameras by using the location information received from the location information identification unit and converting the device identifier received from the location information identification unit into an object identifier identifying the at least one object.
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公开(公告)号：US10122778B2
公开(公告)日：2018-11-06
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
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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3.发明授权公开(公告)号：US10991073B2
公开(公告)日：2021-04-27
申请号：US16600229
申请日：2019-10-11
Inventor： Yong Ju Cho , Jeong Il Seo , Soon Heung Jung
IPC: G06K9/00 , H04N13/02 , G06T3/40 , G06T3/00 , G06T5/00 , G06T5/50 , H04N5/232 , H04N5/247 , G06T5/40
Abstract: The present invention relates to an apparatus and a method of stitching a real-time image. More specifically, stitching-related information is generated, a parallax occurrence region in an overlap region is tracked, and correction for reducing parallax occurring in the parallax occurrence region and correction of an image distortion occurring in a non-overlap region are performed for output.
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公开(公告)号：US10963989B2
公开(公告)日：2021-03-30
申请号：US16155660
申请日：2018-10-09
Inventor： Soon Heung Jung , Yong Ju Cho , Jeong Il Seo
Abstract: Disclosed is an apparatus and method of generating a stitched image. A method of generating a stitched image according to the present disclosure includes: obtaining a plurality of input images; determining whether or not a parallax problem occurs between overlapping areas of the obtained input images; updating a predetermined look-up table according to the determination; and generating a stitched image by applying the updated look-up table to the input images.
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5.发明授权Rate adaptation method using bit error rate for multimedia service and apparatus therefor 有权使用多媒体业务误码率的速率自适应方法及其设备公开(公告)号：US09509439B2
公开(公告)日：2016-11-29
申请号：US14391071
申请日：2013-06-11
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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Patent Agency Ranking
公开(公告)号：US09030485B2
公开(公告)日：2015-05-12
申请号：US13658039
申请日：2012-10-23
Applicant: Electronics and Telecommunications Research Institute , National University of Sciences & Technology
Inventor： Yong Ju Cho , Yong Ju Lee , Seung Kwon Beack , Ji Hun Cha , Seong Yong Lim , Myung Seok Ki , Joo Myoung Seok , Jin Woong Kim , Muhammad Murtaza Khan , Rehan Hafiz , Haris Anis , Mutahir Latif , Ashar Rasul , Arshad Ali
IPC: G09G5/00 , G09G5/02 , G09G5/36 , H04N5/46 , H04N1/46 , H04N1/40 , G03F3/08 , G06K9/00 , G06K9/40 , G06K9/36 , H04N9/31 , G06F3/14
CPC classification number: H04N9/3147 , G06F3/1446 , G09G2320/0233 , G09G2320/0285 , G09G2320/0693 , H04N9/3182 , H04N9/3194
Abstract: An apparatus and a method for correcting colors of an image projection device are provided. The method includes: acquiring a photographed image by photographing a sample image projected on projection surface; generating input-output color information for n regions, based on color values of a block in the sample image and corresponding color values of the block in the photographed image; selecting one of the n regions of photographed images as a reference region; generating look-up tables (LUTs) for non-reference regions, based on the reference region and the input and output color information; and correcting colors of input images to be projected by the image projection device using the look-up tables, thereby minimizing color difference of the input images on the projection surface for both intra and inter projection device color correction while simplifying the correction procedure.
Abstract translation: 提供了一种用于校正图像投影装置的颜色的装置和方法。 该方法包括：通过拍摄投影在投影面上的样本图像来获取拍摄图像; 基于样本图像中的块的颜色值和所拍摄图像中的块的对应颜色值，生成n个区域的输入输出颜色信息; 选择拍摄图像的n个区域中的一个作为参考区域; 基于参考区域和输入和输出颜色信息产生用于非参考区域的查找表（LUT）; 并且通过使用查找表来校正由图像投影设备投影的输入图像的颜色，从而使简化校正过程的同时投影设备颜色校正的投影面上的输入图像的色差最小化。
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公开(公告)号：US11182886B2
公开(公告)日：2021-11-23
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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8.发明授权公开(公告)号：US10558881B2
公开(公告)日：2020-02-11
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
IPC: G06K9/36 , G06K9/20 , H04N9/097 , G06T3/00 , H04N13/225 , G06K9/00 , H04N5/262 , H04N5/232 , G06T3/40 , H04N13/239 , H04N13/00
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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9.发明授权公开(公告)号：US10181928B2
公开(公告)日：2019-01-15
申请号：US15349709
申请日：2016-11-11
Inventor： Yong Ju Cho , Ji Hun Cha
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.
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公开(公告)号：US09628767B2
公开(公告)日：2017-04-18
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
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.
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