公开(公告)号：KR1020110090731A

公开(公告)日：2011-08-10

申请号：KR1020100051996

申请日：2010-06-01

Applicant: 한국전자통신연구원 ,  목포대학교산학협력단

Inventor： 유장희 ,  김영환 ,  최경호 ,  박순영 ,  문기영

IPC: G06K9/00 ,  G06T7/40

CPC classification number: G06K9/00906 ,  G06K9/00335 ,  G06T7/254

Abstract: PURPOSE: A fake video detecting apparatus and a method thereof are provided to improve the reliability and a security level. CONSTITUTION: An apparatus for determining a fake image comprises an image-acquiring block(102) for acquiring an image captured by and input from a camera, a background-learning block(104) for learning a background of the image to create a learning background, a face extracting-block(108) for extracting a face region of a person to be authenticated when an input image for authentication is transmitted from the camera, and an inter-background comparing block(110) for comparing a present background of an input image with the learning background.

Abstract translation: 目的：提供一种假影像检测装置及其方法，以提高可靠性和安全性。 一种用于确定假图像的装置，包括用于获取由相机拍摄并从相机输入的图像的图像获取块（102），用于学习图像的背景以创建学习背景的背景学习块（104） ，用于当从所述相机发送用于认证的输入图像时提取要认证的人的面部区域的面部提取块（108），以及用于比较输入的当前背景的背景间比较块（110） 形象与学习背景。

公开(公告)号：KR1020110057449A

公开(公告)日：2011-06-01

申请号：KR1020090113861

申请日：2009-11-24

Applicant: 한국전자통신연구원

Inventor： 문대성 ,  문기영 ,  유장희 ,  정윤수 ,  최우용 ,  박소희 ,  강병준 ,  이용진

IPC: G06K9/00 ,  G06T7/40

CPC classification number: G06K9/00093

Abstract: PURPOSE: A device and method of recognizing a finger print recognition which reinforced a security are provided to safely protect fingerprint information stored in a storing device from an external aggressor by adding fake characteristic information to real characteristic information. CONSTITUTION: A register fingerprint characteristic extracting unit(100) extracts a real characteristic from a register fingerprint image which passed through a preprocessing process. A characteristic protection unit(200) converts the real characteristic by polynomial based on identity information. The characteristic protection unit uses difference value from a polynomial result value of the real characteristic to generate fake characteristic.

Abstract translation: 目的：提供一种识别加强安全性的指纹识别的装置和方法，通过向真实特征信息添加假特征信息，将存储装置中存储的指纹信息与外部侵略者进行安全保护。 构成：寄存器指纹特征提取单元（100）从通过预处理过程的寄存器指纹图像中提取实际特性。 特征保护单元（200）基于身份信息将实数特性转换为多项式。 特征保护单元使用来自实际特征的多项式结果值的差值产生假特征。

公开(公告)号：KR1020110052962A

公开(公告)日：2011-05-19

申请号：KR1020090109719

申请日：2009-11-13

Applicant: 한국전자통신연구원

Inventor： 정윤수 ,  이용진 ,  박소희 ,  유장희 ,  문기영 ,  원철호

IPC: G06T7/40

CPC classification number: G06T7/13 ,  G06K9/4661 ,  G06T5/40 ,  G06T2207/20021

Abstract: PURPOSE: An apparatus and method of recognizing an object are provided to improve the reliability of an object recognition. CONSTITUTION: A control unit of a recognition apparatus receives a face image from a camera(S100). A search unit performs a search about the face image by block units(S200). The control unit extracts a feature vector based on edge histogram about the each block which is searched by the search unit(S300). A matching unit matches a pattern using the extracted feather vector(S400). The control unit recognizes a face region from the unit block(S500).

Abstract translation: 目的：提供识别对象的装置和方法，以提高对象识别的可靠性。 构成：识别装置的控制单元从摄像机接收面部图像（S100）。 搜索单元以块为单位执行关于脸部图像的搜索（S200）。 控制单元基于由搜索单元搜索的每个块的边缘直方图提取特征向量（S300）。 匹配单元使用提取的羽毛矢量匹配图案（S400）。 控制单元从单元块识别面部区域（S500）。

公开(公告)号：KR101010218B1

公开(公告)日：2011-01-21

申请号：KR1020080079484

申请日：2008-08-13

Applicant: 한국전자통신연구원

Inventor： 이용진 ,  정윤수 ,  문기영

IPC: H04L9/32

Abstract: 본 발명은 생체 인증 방법에 관한 것으로서, 본 발명의 일면에 따른 생체 인증 방법은, 일회성 변환 정보를 이용하여 생체 정보로부터 제1 일회성 인증 템플릿을 생성하여 인증을 요청하는 단계와, 상기 제1 일회성 인증 템플릿과 일회성 등록 템플릿을 비교하는 단계 및 상기 비교 결과에 따라 인증되면, 상기 일회성 등록 템플릿 및 상기 일회성 변환 정보를 갱신하는 단계를 포함하되, 상기 갱신된 일회성 변환 정보는, 다음 인증 요청시 상기 갱신된 일회성 등록 템플릿과 비교결과 인증되도록 제2 일회성 인증 템플릿을 생성하는데 이용되는 것을 특징으로 한다.
생체 인증, 일회성, 클라이언트, 서버

公开(公告)号：KR1020100066977A

公开(公告)日：2010-06-18

申请号：KR1020080125523

申请日：2008-12-10

Applicant: 한국전자통신연구원

Inventor： 정윤수 ,  정성욱 ,  이용진 ,  문기영

IPC: G06T7/40 ,  G06T7/00

CPC classification number: G06K9/00221 ,  G06K9/00268 ,  H04N5/23219 ,  H04N2201/3252

Abstract: PURPOSE: A face recognition method using an image and an apparatus thereof are provided to identify a face using an infrared facial image or a normal facial image according to an illumination environment, thereby robustly identifying a face against an illumination change. CONSTITUTION: Feature vectors of recognition target persons are saved in a face feature vector DB(S201). A face image photographed by a camera is analyzed(S203). The form of an infrared image is transformed to enable the infrared image to express a feature of a normal image if the face image is an infrared image(S213). A feature vector is extracted from the transformed image or the general image(S215). The saved feature vectors and the extracted feature vector are compared to identify a face.

Abstract translation: 目的：提供使用图像的脸部识别方法及其装置，以根据照明环境使用红外面部图像或正常面部图像来识别脸部，由此鲁棒地识别针对照明变化的脸部。 构成：识别目标人物的特征向量被保存在面部特征向量DB中（S201）。 分析由相机拍摄的面部图像（S203）。 如果脸部图像是红外图像，则红外图像的形式被变换以使得红外图像能够表达正常图像的特征（S213）。 从变换图像或一般图像中提取特征向量（S215）。 将保存的特征向量和提取的特征向量进行比较以识别面部。

公开(公告)号：KR1020100058809A

公开(公告)日：2010-06-04

申请号：KR1020080117354

申请日：2008-11-25

Applicant: 한국전자통신연구원

Inventor： 정윤수 ,  정성욱 ,  이용진 ,  문기영

IPC: G06K9/46 ,  G06K9/00

CPC classification number: G06K9/00255 ,  G06K9/2018

Abstract: PURPOSE: A forged face detecting method using an infrared ray image and a device thereof are provided to detect a forged face and to perform user authentication based on a general image picked up with a visible ray by picking up a face image with an infrared/visible light camera and analyzing a property of the infrared ray image. CONSTITUTION: A face image evaluation unit(31) evaluates picture quality about an infrared ray image matched with a face area by using a technology of sharpness. In case the sharpness of the infrared ray image within the face area lacks, the face image evaluation unit identifies the infrared ray image as a forged face. A face identifying unit(33) identifies the face from the face area based on a property of the infrared ray image. An eyeball property analyzing unit(35) compares a eyeball area of the infrared ray image with the set eyeball areas and detects the forged face.

Abstract translation: 目的：提供使用红外线图像的伪造脸部检测方法及其装置，以检测伪造的脸部，并且通过用红外/可见光拾取脸部图像，基于通过可见光线拾取的一般图像来执行用户认证 光照相机，并分析红外线图像的属性。 构成：面部图像评价单元（31）通过使用清晰度的技术评价与脸部区域匹配的红外线图像的图像质量。 在面部区域内的红外线图像的清晰度不足的情况下，面部图像评价部将红外线图像识别为锻造面。 面部识别单元（33）基于红外线图像的特性识别来自面部区域的脸部。 眼球属性分析单元（35）将红外线图像的眼球区域与设定的眼球区域进行比较，并检测伪造的脸部。

公开(公告)号：KR100932123B1

公开(公告)日：2009-12-16

申请号：KR1020070114490

申请日：2007-11-09

Applicant: 한국전자통신연구원

Inventor： 정성욱 ,  정윤수 ,  문기영 ,  정교일

IPC: H04N7/01

CPC classification number: G06T3/4007

Abstract: Provided are a method and apparatus for reducing picture, which can obtain a reduced picture by previously creating a picture reduction map that stores effective-pixel locations selected according to a picture reduction scale and a picture reduction algorithm, and then matching an input picture with the picture reduction map. The method for reducing picture includes constructing a picture reduction map according to a size of an incoming picture, and generating a sub-picture for reduction of an input picture by using the picture reduction map.

Abstract translation: 提供一种缩小图片的方法和装置，该方法和装置可以通过预先创建图片缩减图来获得缩小图片，该图片缩减图存储根据图片缩小比例和图片缩小算法选择的有效像素位置，然后将输入图片与 图片缩小地图。 减少图片的方法包括根据输入图片的大小构建图片缩小图，并通过使用图片缩小图生成用于缩小输入图片的子图片。

公开(公告)号：KR1020090110026A

公开(公告)日：2009-10-21

申请号：KR1020080035603

申请日：2008-04-17

Applicant: 한국전자통신연구원

Inventor： 최우용 ,  문기영

IPC: G06F17/12 ,  G06F21/00

CPC classification number: G06F21/32

Abstract: PURPOSE: A polynomial reconstruction apparatus of a fuzzy bolt system and a method thereof are provided to enable a user to restore a polynomial in real time without a separate key. CONSTITUTION: A polynomial reconstruction method apparatus of a fuzzy bolt system comprises the followings: a feature point selecting unit which selects a feature point combination used for polynomial reconstruction after receiving a set of matched feature points(S10); a simultaneous equation generating unit for generating a simultaneous equation by using the selected feature point combination(S20); and a root determining unit for checking whether the root of the simultaneous equation exists(S30).

Abstract translation: 目的：提供一种模糊螺栓系统的多项式重建装置及其方法，以使用户能够实时地恢复多项式，而无需单独的密钥。 构成：模糊螺栓系统的多项式重建方法装置包括：特征点选择单元，其在接收到一组匹配特征点之后选择用于多项式重建的特征点组合（S10）; 一个联立方程生成单元，用于通过使用所选择的特征点组合来产生联立方程（S20）; 以及根确定单元，用于检查是否存在联立方程的根（S30）。

公开(公告)号：KR1020090042143A

公开(公告)日：2009-04-29

申请号：KR1020080079484

申请日：2008-08-13

Applicant: 한국전자통신연구원

Inventor： 이용진 ,  정윤수 ,  문기영

IPC: H04L9/32

Abstract: A biometric authentication method is provided to protect the original copy template although the template generated for the user authentication is flowed out with the transport network halfway. The bio-verification method in which the security is improved is as follows. The first disposable authentication template is generated from the bio-information and the authentication is demanded by using the one-shot translation information. The first disposable authentication template and the disposable registration template are compared. If the authenticated according to the comparison result is performed, the disposable registration template and the disposable translation information are updated. The updated disposable translation information is used for generating the second disposable authentication template.

Abstract translation: 提供生物特征认证方法来保护原始的拷贝模板，尽管生成用于用户认证的模板中途与传输网络一起流出。 改进安全性的生物验证方法如下。 第一个一次性认证模板是从生物信息生成的，并且通过使用一次翻译信息来要求认证。 比较第一次一次性认证模板和一次性注册模板。 如果根据比较结果进行认证，则更新一次性注册模板和一次性翻译信息。 更新的一次性翻译信息用于生成第二一次性认证模板。

公开(公告)号：KR100875923B1

公开(公告)日：2008-12-26

申请号：KR1020070025073

申请日：2007-03-14

Applicant: 한국전자통신연구원

Inventor： 최우용 ,  안도성 ,  문기영

IPC: G06F17/30 ,  G06K17/00 ,  G06K9/00

Abstract: A system and a method for searching a user with multiple biometric recognitions are provided to remove recognition error occurring in a process for fusing matching points, which are a recognition result of more than two single biometric recognition systems. Fingerprint and face information databases(103,106) store a plurality of biometric information received from a plurality of users. Fingerprint and face distribution estimators(107,108) estimate probability distribution by using a cumulative distribution function for biometric information stored in the fingerprint and face information databases. Fingerprint and face searchers(113,116) search a plurality of biometric information of a target user from the fingerprint and face information databases and assigns a matching score to each biometric information by determining matching between the biometric information of the target user and the biometric information stored in the fingerprint and face information databases. A fuser(117) fuses the matching points based on CBF(Cumulative Bayes Fusion) by referring to the estimated probability distribution, and extracts a search result for the target user from a fusion result.

Abstract translation: 提供了一种用于利用多个生物识别系统搜索用户的系统和方法，以消除在融合匹配点的过程中发生的识别错误，匹配点是多于两个的单个生物识别系统的识别结果。 指纹和脸部信息数据库（103,106）存储从多个用户接收到的多个生物测定信息。 指纹和脸部分布估计器（107,108）通过使用存储在指纹和脸部信息数据库中的生物信息的累积分布函数来估计概率分布。 指纹和脸部搜索器（113,116）从指纹和脸部信息数据库中搜索目标用户的多个生物信息，并通过确定目标用户的生物信息与存储在其中的生物信息之间的匹配来为每个生物信息分配匹配分数 指纹和脸部信息数据库。 定影器（117）通过参考估计的概率分布基于CBF（累积贝叶斯融合）来融合匹配点，并从融合结果中提取目标用户的搜索结果。