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公开(公告)号：US10484585B2
公开(公告)日：2019-11-19
申请号：US15669554
申请日：2017-08-04
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Heung No Lee , Woong Bi Lee , Cheol Sun Kim
Abstract: There is provided an image sensing apparatus according to the present invention including: an image recovery portion which recovers an image from a sensed image by using a digital signal processing technique which uses a sparse representation for each measurement matrix; and a distance measurement portion which measures a distance of an object by using a norm of a value using at least light amount information of the estimated pixel which is estimated for each measurement matrix, in which the image recovery portion recovers the image by using the measurement matrix corresponding to the distance measured by the distance measurement portion. According to the present invention, when an image is sensed using compound eyes, image sensing can be performed without a separate distance measuring device or the like.
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公开(公告)号：US10458843B2
公开(公告)日：2019-10-29
申请号：US14434757
申请日：2013-10-08
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Heung No Lee , James Oliver , Woong Bi Lee
Abstract: According to the present invention a spectrometry apparatus includes: an optical filter device in which two or more filters are provided to filter incident light; an optical sensor device in which two or more optical sensors are provided to be capable of corresponding to the two or more filters so as to convert the filtered light into a charge to be outputted; and a digital signal processing unit that performs digital signal processing on an output signal of the optical sensor device to recover spectrum data on the incident light, and having at least one of the two or more filters being a random transmittance filter. According to the present invention, the resolution of the recovered optical signal is improved and recovery accuracy is improved.
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公开(公告)号：US20150285677A1
公开(公告)日：2015-10-08
申请号：US14434757
申请日：2013-10-08
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Heung No Lee , James Oliver , Woong Bi Lee
CPC classification number: G01J3/0205 , G01J3/28 , G01J3/2803 , G01J3/36 , G01J2003/1213 , G01J2003/1217 , H04N5/332 , H04N5/335
Abstract: According to the present invention a spectrometry apparatus includes: an optical filter device in which two or more filters are provided to filter incident light; an optical sensor device in which two or more optical sensors are provided to be capable of corresponding to the two or more filters so as to convert the filtered light into a charge to be outputted; and a digital signal processing unit that performs digital signal processing on an output signal of the optical sensor device to recover spectrum data on the incident light, and having at least one of the two or more filters being a random transmittance filter. According to the present invention, the resolution of the recovered optical signal is improved and recovery accuracy is improved.
Abstract translation: 根据本发明，一种光谱测定装置包括：滤光器装置，其中设置有两个或更多个滤光器以滤光入射光; 一种光传感器装置，其中设置两个或更多个光学传感器以能够对应于两个或更多个滤光器，以将滤光的光转换成要输出的电荷; 以及数字信号处理单元，其对所述光学传感器装置的输出信号执行数字信号处理，以恢复所述入射光的光谱数据，并且所述两个或更多个滤光器中的至少一个是随机透射滤光器。 根据本发明，恢复的光信号的分辨率提高，并且提高了恢复精度。
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4.发明申请公开(公告)号：US20180041673A1
公开(公告)日：2018-02-08
申请号：US15669554
申请日：2017-08-04
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Heung No Lee , Woong Bi Lee , Cheol Sun Kim
CPC classification number: H04N5/2254 , G02B3/00 , G02B3/0006 , G02B27/0075 , H04N5/23229 , H04N5/23293
Abstract: There is provided an image sensing apparatus according to the present invention including: an image recovery portion which recovers an image from a sensed image by using a digital signal processing technique which uses a sparse representation for each measurement matrix; and a distance measurement portion which measures a distance of an object by using a norm of a value using at least light amount information of the estimated pixel which is estimated for each measurement matrix, in which the image recovery portion recovers the image by using the measurement matrix corresponding to the distance measured by the distance measurement portion. According to the present invention, when an image is sensed using compound eyes, image sensing can be performed without a separate distance measuring device or the like.
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Patent Agency Ranking
公开(公告)号：US09734128B2
公开(公告)日：2017-08-15
申请号：US14405234
申请日：2013-06-03
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Heung No Lee , Jin Taek Seong
CPC classification number: G06F17/10 , H03H17/0255
Abstract: A method for recovering a sparse signal of a finite field may include: updating discrete probability information of a target signal element of the finite field and discrete probability information of a measurement signal element of the finite field by exchanging the discrete probability information of the target signal element with the discrete probability information of the measurement signal element a predetermined number of times, wherein the target signal element and the measurement signal element are related to each other; calculating a final posteriori probability based on a priori probability of the target signal element and the discrete probability information of the measurement signal element, acquired as the exchange result; and recovering the target signal by performing maximum posteriori estimation to maximize the final posteriori probability.
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6.发明授权公开(公告)号：US09030662B2
公开(公告)日：2015-05-12
申请号：US13711930
申请日：2012-12-12
Applicant: Gwangju Institute of Science and Technology
Inventor： Heung No Lee , Sang Jun Park , James Oliver , Woong Bi Lee
Abstract: An apparatus for processing an optical signal of a spectrometer using sparse nature of a signal spectrum is provided including an optical filter array configured to filter an incident light, an optical sensor array configured to convert the filtered light into charges and a digital signal processing unit configured to perform a digital signal processing on an output from the optical sensor array on the basis of an L1 norm minimization algorithm using sparse nature of a signal spectrum and recover spectrum information of the incident light.
Abstract translation: 提供了一种使用信号频谱的稀疏性来处理光谱仪的光信号的装置，包括被配置为滤除入射光的滤光器阵列，被配置为将经滤波的光转换成电荷的光学传感器阵列和配置成的数字信号处理单元 基于使用信号频谱的稀疏性质的L1范数最小化算法对光传感器阵列的输出进行数字信号处理，并恢复入射光的光谱信息。
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公开(公告)号：US10605962B2
公开(公告)日：2020-03-31
申请号：US15761855
申请日：2016-09-21
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Heung No Lee , Woong Bi Lee , Hwan Chol Jang
Abstract: An imaging device using a plurality of lenses according to the present disclosure includes: a compound eye through which a detected image is obtained by a plurality of lenses; a measurement matrix storage unit in which at least one measurement matrix is stored; and an image recovery unit configured to recover an image from the detected image using a digital signal processing technique using sparse representation using the measurement matrix. According to the present disclosure, an imaging device may be obtained which may improve the resolution of an image even while a wide undistorted FOV, an infinite depth, and fast motion recognition, which may be obtained using compound eyes, are achieved. Accordingly, discrimination of an object by the compound eyes may be improved, so that a human having camera-type eyes may acquire image information while advantages of the compound eyes are maximized.
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8.发明申请METHOD FOR RECONSTRUCTING SPARSE SIGNAL IN FINITE FIELD, APPARATUS FOR RECONSTRUCTING SPARSE SIGNAL IN FINITE FIELD, AND RECORDING MEDIUM FOR RECORDING RECONSTRUCTION METHOD 有权用于在有限场中重新编码小信号的方法，用于在有限场中重新编码小信号的装置和用于记录重建方法的记录介质公开(公告)号：US20150149520A1
公开(公告)日：2015-05-28
申请号：US14405234
申请日：2013-06-03
Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Heung No Lee , Jin Taek Seong
IPC: G06F17/10
CPC classification number: G06F17/10 , H03H17/0255
Abstract: A method for recovering a sparse signal of a finite field may include: updating discrete probability information of a target signal element of the finite field and discrete probability information of a measurement signal element of the finite field by exchanging the discrete probability information of the target signal element with the discrete probability information of the measurement signal element a predetermined number of times, wherein the target signal element and the measurement signal element are related to each other; calculating a final posteriori probability based on a priori probability of the target signal element and the discrete probability information of the measurement signal element, acquired as the exchange result; and recovering the target signal by performing maximum posteriori estimation to maximize the final posteriori probability.
Abstract translation: 用于恢复有限域的稀疏信号的方法可以包括：通过交换目标信号的离散概率信息来更新有限域的目标信号元素的离散概率信息和有限域的测量信号元素的离散概率信息 元素，其中测量信号元素的离散概率信息预定次数，其中目标信号元素和测量信号元素彼此相关; 基于目标信号元素的先验概率和作为交换结果获取的测量信号元素的离散概率信息来计算最终后验概率; 并通过执行最大后验估计来恢复目标信号以最大化最终后验概率。
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9.发明授权Orthotope sphere decoding method and apparatus for signal reconstruction in the multi-input multi-output antenna system 有权用于多输入多输出天线系统中的信号重建的Orthotope球体解码方法和装置公开(公告)号：US08798209B2
公开(公告)日：2014-08-05
申请号：US13670025
申请日：2012-11-06
Applicant: Gwangju Institute of Science and Technology
Inventor： Heung No Lee , Hwan Chol Jang
IPC: H04L27/06
CPC classification number: H04B7/08 , H04B7/0413 , H04L25/03242 , H04L2025/03426
Abstract: The present disclosure provides an orthotope sphere decoding method of a multiple antenna system. The method includes: tree mapping a node having highest pruning potential that can be predicted at a root of a tree of orthotope sphere decoding to a root level of the tree, among nodes to be mapped to the tree; and performing tree search of the orthotope sphere decoding on the nodes mapped to the tree.
Abstract translation: 本公开提供了一种多天线系统的原始球解码方法。 该方法包括：在要映射到树的节点中，将具有最高修剪电位的节点树形映射到可以根据树的根级别在根的根解码处进行预测; 并在映射到树的节点上执行对比球解码的树搜索。
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