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公开(公告)号：US20180349674A1
公开(公告)日：2018-12-06
申请号：US16100683
申请日：2018-08-10
发明人： Kyuhong KIM , Wonjun KIM , Youngsung KIM , Sungjoo SUH
CPC分类号： G06K9/00067 , G06K9/3241
摘要： A method of preprocessing an image including biological information is disclosed, in which an image preprocessor may set an edge line in an input image including biological information, calculate an energy value corresponding to the edge line, and adaptively crop the input image based on the energy value.
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公开(公告)号：US20180144185A1
公开(公告)日：2018-05-24
申请号：US15626440
申请日：2017-06-19
发明人： Byungin YOO , Youngjun KWAK , Youngsung KIM , Seonmin RHEE , Chang Kyu CHOI
CPC分类号： G06K9/00308 , G06K9/00228 , G06K9/00255 , G06K9/00288 , G06K9/00302 , G06K9/6256 , G06K9/66
摘要： A facial expression recognition method includes actuating a processor to acquire an input image including an object; and identifying a facial expression intensity of the object from the input image based on a facial expression recognition model.
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公开(公告)号：US20180137388A1
公开(公告)日：2018-05-17
申请号：US15795677
申请日：2017-10-27
发明人： Youngsung KIM , Byungin YOO , Deheng QIAN , Hui ZHANG , Chang Kyu CHOI , He ZHENG , Jae-Joon HAN , Jingtao XU , Tianchu GUO
CPC分类号： G06K9/623 , G06K9/00281 , G06K9/00288 , G06K9/6265 , G06K9/627 , G06K9/6297 , G06K9/66 , G06N3/0454
摘要： A method to analyze a facial image includes: inputting a facial image to a residual network including residual blocks that are sequentially combined and arranged in a direction from an input to an output; processing the facial image using the residual network; and acquiring an analysis map from an output of an N-th residual block among the residual blocks using a residual deconvolution network, wherein the residual network transfers the output of the N-th residual block to the residual deconvolution network, and N is a natural number that is less than a number of all of the residual blocks, and wherein the residual deconvolution network includes residual deconvolution blocks that are sequentially combined, and the residual deconvolution blocks correspond to respective residual blocks from a first residual block among the residual blocks to the N-th residual block.
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公开(公告)号：US20240087358A1
公开(公告)日：2024-03-14
申请号：US18515798
申请日：2023-11-21
发明人： Youngjun KWAK , Minsu KO , Youngsung KIM , Heewon KIM , Ju Hwan SONG , Byung In YOO , Seon Min RHEE , Yong-il LEE , Jiho CHOI , Seungju HAN
CPC分类号： G06V40/166 , G06F21/32 , G06T7/0012 , G06T7/73 , G06V10/143 , G06V40/161 , G06V40/168 , G06V40/40 , G06T2207/10028 , G06T2207/10048 , G06T2207/30201
摘要： A processor-implemented method includes generating a preprocessed infrared (IR) image by performing first preprocessing based on an IR image including an object; generating a preprocessed depth image by performing second preprocessing based on a depth image including the object; and determining whether the object is a genuine object based on the preprocessed IR image and the preprocessed depth image
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公开(公告)号：US20210089760A1
公开(公告)日：2021-03-25
申请号：US17109762
申请日：2020-12-02
发明人： Tianchu GUO , Youngsung KIM , Hui ZHANG , Byungin YOO , Chang Kyu CHOI , Jae-Joon HAN , Jingtao XU , Deheng QIAN
摘要： A processor implemented method of processing a facial expression image, the method includes controlling a camera to capture a first facial expression image and a second facial expression image, acquiring a first expression feature of the first facial expression image, acquiring a second expression feature of the second facial expression image, generating a new expression feature dependent on differences between the acquired first expression feature and the acquired second expression feature, and adjusting a target facial expression image based on the new expression feature.
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公开(公告)号：US20190197331A1
公开(公告)日：2019-06-27
申请号：US16224970
申请日：2018-12-19
发明人： Youngjun KWAK , Byung In YOO , Youngsung KIM , Chang Kyu CHOI , Jaejoon HAN
CPC分类号： G06K9/00906 , G06F21/6218 , G06K9/00228 , G06K9/00268 , G06K9/00926 , G06K9/4628 , G06K9/6215 , G06K9/6272 , G06N3/02 , G06T7/60 , G06T7/70 , G06T2207/20084 , G06T2207/30201
摘要： A processor-implemented liveness test method includes detecting a face region in a query image, the query image including a test object for a liveness test, determining a liveness test condition to be applied to the test object among at least one liveness test condition for at least one registered user registered in a registration database, determining at least one test region in the query image based on the detected face region and the determined liveness test condition, obtaining feature data of the test object from image data of the determined at least one test region using a neural network-based feature extractor, and determining a result of the liveness test based on the obtained feature data and registered feature data registered in the registration database and corresponding to the determined liveness test condition.
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公开(公告)号：US20180068218A1
公开(公告)日：2018-03-08
申请号：US15463553
申请日：2017-03-20
发明人： Byungin YOO , Youngsung KIM , Youngjun KWAK , Chang Kyu CHOI
CPC分类号： G06N3/08 , G06K9/00624 , G06K9/4604 , G06K9/4628 , G06K9/6232 , G06K9/6271 , G06N3/04 , G06N3/0454 , G06N3/084
摘要： A neural network recognition method includes obtaining a first neural network that includes layers and a second neural network that includes a layer connected to the first neural network, actuating a processor to compute a first feature map from input data based on a layer of the first neural network, compute a second feature map from the input data based on the layer connected to the first neural network in the second neural network, and generate a recognition result based on the first neural network from an intermediate feature map computed by applying an element-wise operation to the first feature map and the second feature map.
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公开(公告)号：US20220262160A1
公开(公告)日：2022-08-18
申请号：US17735324
申请日：2022-05-03
发明人： Sungjoo SUH , Wonjun KIM , Youngsung KIM , Hyunjeong LEE
摘要： A fingerprint verification method includes selecting one or more first fingerprint groups from among a plurality of fingerprint groups based on an input fingerprint image, each fingerprint group of the plurality of fingerprint groups including partial fingerprint images; and determining whether verification is successful based on the input fingerprint image and each of the partial fingerprint images included in the one or more first fingerprint groups.
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公开(公告)号：US20170193272A1
公开(公告)日：2017-07-06
申请号：US15293452
申请日：2016-10-14
发明人： Youngsung KIM , Kyuhong KIM , Hyungsuk KIM , Sungjoo SUH , Chang Kyu CHOI
IPC分类号： G06K9/00
CPC分类号： G06K9/00087 , G06F21/32 , G06K9/00013 , G06K9/00067 , G06K9/036
摘要： Authentication methods and apparatuses are disclosed. An authentication method may include generating a quality profile of an authentication image, and determining an effective region in the authentication image based on the generated quality profile.
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10.发明申请METHOD AND APPARATUS FOR DETECTING FAKE FINGERPRINT, AND METHOD AND APPARATUS FOR RECOGNIZING FINGERPRINT 审中-公开用于检测假手指的方法和装置，以及识别手指的方法和装置公开(公告)号：US20170004351A1
公开(公告)日：2017-01-05
申请号：US15076839
申请日：2016-03-22
发明人： Wonjun KIM , Youngsung KIM , Sungjoo SUH , Hyungsuk KIM , Chang Kyu CHOI
IPC分类号： G06K9/00
摘要： An apparatus and method for detecting a fake fingerprint is disclosed. The apparatus may divide an input fingerprint image into blocks, determine an image quality assessment (IQA) value associated with each block, determine a confidence value based on the IQA values using a confidence determination model, and determine whether an input fingerprint in the input fingerprint image is a fake fingerprint based on the determined confidence value.
摘要翻译： 公开了一种用于检测假指纹的装置和方法。 该装置可以将输入指纹图像划分为块，确定与每个块相关联的图像质量评估（IQA）值，使用置信度确定模型基于IQA值确定置信度值，并确定输入指纹中的输入指纹 图像是基于确定的置信度值的假指纹。
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