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公开(公告)号：US10089451B2
公开(公告)日：2018-10-02
申请号：US15041477
申请日：2016-02-11
发明人： Xuetao Feng , Chao Zhang , Chisung Bae , Jongae Park , Sang-joon Kim , Yang Liu
IPC分类号： G06F21/00 , G06F21/32 , A61B5/0452 , H04L9/32 , A61B5/00 , A61B5/117 , H04L29/06 , G06K9/00 , G06K9/62 , G16H50/20
摘要： Provided are electrocardiogram (ECG)-based authentication and training. An authentication method includes generating a feature vector of an ECG obtained from an entity or a person based on a dictionary, classifying the ECG through a classifier based on the feature vector, and performing authentication based on a classification result.
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公开(公告)号：US10002308B2
公开(公告)日：2018-06-19
申请号：US15172751
申请日：2016-06-03
发明人： Xiaolu Shen , Biao Wang , Xuetao Feng , Jae Joon Han
CPC分类号： G06K9/4671 , G06K9/00281 , G06K9/6211 , G06K9/6255
摘要： Provided are a positioning method and apparatus. The positioning method includes acquiring a plurality of positioning results including positions of key points of a facial area included in an input image, respectively using a plurality of predetermined positioning models, evaluating the plurality of positioning results using an evaluation model of the positions of the key points, and updating at least one of the plurality of predetermined positioning models and the evaluation model based on a positioning result that is selected, based on a result of the evaluating, from among the plurality of positioning results.
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3.发明授权Apparatuses and methods for face tracking based on calculated occlusion probabilities 有权基于计算的闭塞概率进行面部跟踪的装置和方法公开(公告)号：US09558396B2
公开(公告)日：2017-01-31
申请号：US14514877
申请日：2014-10-15
发明人： Xuetao Feng , Xiaolu Shen , Hui Zhang , Ji Yeun Kim , Jung Bae Kim
IPC分类号： G06K9/00
CPC分类号： G06K9/00234
摘要： A face tracking apparatus includes: a face region detector; a segmentation unit; an occlusion probability calculator; and a tracking unit. The face region detector is configured to detect a face region based on an input image. The segmentation unit is configured to segment the face region into a plurality of sub-regions. The occlusion probability calculator configured to calculate occlusion probabilities for the plurality of sub-regions. The tracking unit is configured to track a face included in the input image based on the occlusion probabilities.
摘要翻译： 一种脸部跟踪装置，包括：脸部区域检测器; 分割单元; 闭塞概率计算器; 和跟踪单元。 面部区域检测器被配置为基于输入图像来检测面部区域。 分割单元被配置为将面部区域分割成多个子区域。 遮挡概率计算器，被配置为计算多个子区域的遮挡概率。 跟踪单元被配置为基于遮挡概率跟踪包括在输入图像中的脸部。
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公开(公告)号：US09946395B2
公开(公告)日：2018-04-17
申请号：US15016673
申请日：2016-02-05
发明人： Chao Zhang , Xuetao Feng , Yang Liu , Chisung Bae , Sang-joon Kim
IPC分类号： G06F3/041 , G06F3/048 , G06F3/01 , G06F3/0488
CPC分类号： G06F3/0416 , G06F3/015 , G06F3/0488
摘要： A user interface method and apparatus are provided. A user interface method of a smart device includes receiving an electrical signal from an electromyography (EMG) sensor worn on a user, determining a user input based on the received electrical signal and position information about a determined position of a detected touch of the user on a touch screen, and controlling operation of the smart device in response to the determined user input.
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公开(公告)号：US09876791B2
公开(公告)日：2018-01-23
申请号：US14983112
申请日：2015-12-29
发明人： Chisung Bae , HaiBing Ren , YongNan Ji , Xuetao Feng , Biao Wang , Sangjoon Kim
IPC分类号： H04L29/06 , A61B5/00 , A61B5/0452 , A61B5/117
CPC分类号： H04L63/0861 , A61B5/0452 , A61B5/117 , A61B5/7246
摘要： A method and apparatus for authenticating a user are provided. An authentication apparatus includes a data set generator configured to generate an authentication data set by extracting waveforms from a biosignal of a user, a similarity calculator configured to match each of the extracted waveforms to registered waveforms included in a registration data set, and calculate a similarity between each of the extracted waveforms and the registered waveforms, and an auxiliary similarity calculator configured to extract a representative authentication waveform indicating a representative waveform of the extracted waveforms and a representative registration waveform indicating a representative waveform of the registered waveforms, and calculate a similarity between the representative authentication waveform and the representative registration waveform.
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公开(公告)号：US20140050392A1
公开(公告)日：2014-02-20
申请号：US13967435
申请日：2013-08-15
发明人： Xuetao Feng , Xiaolu Shen , Hui Zhang , Ji Yeun Kim , Jung Bae Kim
IPC分类号： G06K9/00
CPC分类号： G06K9/00281
摘要： Provided is a method of detecting and tracking lips accurately despite a change in a head pose. A plurality of lips rough models and a plurality of lips precision models may be provided, among which a lips rough model corresponding to a head pose may be selected, such that lips may be detected by the selected lips rough model, a lips precision model having a lip shape most similar to the detected lips may be selected, and the lips may be detected accurately using the lips precision model.
摘要翻译： 提供了尽管头部姿势发生变化来准确地检测和跟踪嘴唇的方法。 可以提供多个嘴唇粗糙模型和多个唇部精确模型，其中可以选择对应于头部姿势的嘴唇粗糙模型，使得可以通过所选择的唇部粗糙模型检测唇部，唇部精度模型具有 可以选择与检测到的嘴唇最相似的唇形，并且可以使用唇部精度模型精确地检测嘴唇。
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7.发明申请METHOD AND APPARATUS FOR MODELING THREE-DIMENSIONAL (3D) FACE, AND METHOD AND APPARATUS FOR TRACKING FACE 审中-公开用于建模三维（3D）面的方法和装置以及跟踪面的方法和装置公开(公告)号：US20140009465A1
公开(公告)日：2014-01-09
申请号：US13936001
申请日：2013-07-05
发明人： Xiaolu Shen , Xuetao Feng , Hui Zhang , Ji Yeun Kim , Jung Bae Kim
IPC分类号： G06T13/40
CPC分类号： G06K9/00221 , G06K9/00214 , G06K9/00261 , G06K9/00315 , G06T13/40 , G06T17/20
摘要： A method and apparatus for modeling a three-dimensional (3D) face, and a method and apparatus for tracking a face. The method for modeling the 3D face may set a predetermined reference 3D face to be a working model, and generate a result of tracking including at least one of a face characteristic point, an expression parameter, and a head pose parameter from a video frame, based on the working model, to output the result of the tracking.
摘要翻译： 用于对三维（3D）面进行建模的方法和装置，以及用于跟踪面部的方法和装置。 用于对3D脸部进行建模的方法可以将预定参考3D脸部设置为工作模型，并且从视频帧生成包括面部特征点，表情参数和头部姿势参数中的至少一个的跟踪结果， 根据工作模式，输出跟踪结果。
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公开(公告)号：US10360469B2
公开(公告)日：2019-07-23
申请号：US14994688
申请日：2016-01-13
发明人： Xuetao Feng , Biao Wang , Hao Feng , Hongwei Zhang , Changkyu Choi , Jaejoon Han , Jungbae Kim , Lujin Gong
摘要： Provided is a 3D registration method and apparatus that may select a key point from among plural points included in 3D target data, based on a geometric feature or a color feature of each of the plural points, may adjust a position of the selected key point of the 3D target data based on features of, or a distance between, a key point of the 3D source data and the selected key point of the 3D target data, may calculate reliabilities of plural key points of the 3D source data based on respective features of at least one key point of the 3D target data determined to correspond to the plural key points of the 3D source data, and may generate 3D registration data by performing 3D registration between the 3D source data and the 3D target data based on the calculated reliabilities.
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公开(公告)号：US10154818B2
公开(公告)日：2018-12-18
申请号：US14884004
申请日：2015-10-15
发明人： Chao Zhang , Xuetao Feng , Yang Liu , Chisung Bae , Sang-joon Kim
IPC分类号： A61B5/0205 , A61B5/00 , A61B5/117 , G07C9/00
摘要： A biometric authentication apparatus and method are provided. The biometric authentication apparatus may obtain at least two types of biosignals, extract a same type of physiological features from each of the biosignals, and determine whether the biosignals are generated from a same living body based on the extracted same type of physiological features.
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公开(公告)号：US10134177B2
公开(公告)日：2018-11-20
申请号：US14996709
申请日：2016-01-15
发明人： Xuetao Feng , Hao Feng , Hongwei Zhang , Lujin Gong , Changkyu Choi , Jae-Joon Han , Sungjoo Suh , Wonjun Hwang , Biao Wang
摘要： A method and an apparatus for adjusting a pose in a face image are provided. The method of adjusting a pose in a face image involves detecting two-dimensional (2D) landmarks from a 2D face image, positioning three-dimensional (3D) landmarks in a 3D face model by determining an initial pose of the 3D face model based on the 2D landmarks, updating the 3D landmarks by iteratively adjusting a pose and a shape of the 3D face model, and adjusting a pose in the 2D face image based on the updated 3D landmarks.
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