• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.331-332
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• 2006

To enhance security and privacy in biometrics, changeable (or cancelable) biometrics have recently been introduced. The idea is to transform a biometric signal or feature into a new one for enrollment and matching. In this paper, we proposed changeable biometrics for face recognition using on PCA based approach. PCA coefficient vector extracted from an input face image. The vector is scrambled randomly and removed. When a transformed template is compromised, it is replaced by a new scrambling rule. In our experiment, we compared the performance between when PCA coefficient vectors are used for verification and when the transformed coefficient vectors are used for verification.

• 한국멀티미디어학회논문지
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• 제20권2호
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• pp.170-178
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• 2017

Biometric recognition is one of the major challenging topics which needs high performance of recognition accuracy. Most of existing methods rely on a single source of biometric to achieve recognition. The recognition accuracy in biometrics is affected by the variability of effects, including illumination and appearance variations. In this paper, we propose a new multimodal biometrics recognition using convolutional neural network. We focus on multimodal biometrics from face and periocular regions. Through experiments, we have demonstrated that facial multimodal biometrics features deep learning framework is helpful for achieving high recognition performance.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2002년도 춘계학술대회
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• pp.59-63
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• 2002

The purpose of this study is to carry out comparative analysis of the differences between the trend of biometrics-related system(security) standardization in the world and that of Korea, and to suggest ideal directions and building plans for domestic biometrics industry. Its purpose also includes constructing promptly a standardization of domestic biometrics industry based on the suggested standards.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2003년도 춘계학술대회
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• pp.115-120
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• 2003

The purpose of this study is to carry out comparative analysis of the differences between the trend of biometrics-related test St evaluation standardization in the world and that of Korea, and to suggest ideal directions and building plans for domestic biometrics industry. Its purpose also includes constructing promptly a standardization of domestics biometrics industry based on the suggested standards.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2003년도 춘계학술대회
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• pp.121-125
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• 2003

The Purpose of this study is to carry out comparative analysis of the differences between the trend of biometrics-related software standardization in the world and that of Korea, and to suggest ideal directions and building plans for domestic biometrics industry. Its purpose also includes constructing promptly a standardization of domestic biometrics industry based on the suggested standards.

• 한국산업정보학회논문지
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• 제15권4호
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• pp.53-60
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• 2010

생체인식은 개인의 신체에서 얻어지는 고유한 특성을 특징점으로 잡아 인식하는 방법으로서 분실할 위험이 없고 타인에 의한 위 변조의 위험성이 낮아 높은 보안성을 제공한다. 본 논문에서는 빠르고 편리하게 광학적으로 두 손가락 끝에서 정확한 심장박동 신호를 측정하여 '생체인식에 적용할 수 있는 광용적맥파를 이용한 생체인식 보안시스템을 설계 및 구현하였다. 성능평가 결과, 본 논문에서 설계 및 구현된 개인인증을 위한 생체인식 보안시스템은 출입문의 개폐용으로 실험한 결과 평균 90.5%의 인식률을 나타내었다. 제안된 생체인식 보안시스템은 간단하게 손가락을 기계에 접촉하는 원터치 방식으로 원하는 생체 정보를 얻음으로써 시간적 편리성과 누구나 거부감 없이 쉽게 이용할 수 있는 장점이 있다.

• 한국산업융합학회 논문집
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• 제9권4호
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• pp.263-268
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• 2006

This paper presents a real-time verification system by extracting a features of multimodal biometrics using hybrid method, which is combined the moment balance and the independent component analysis(ICA). The moment balance is applied to reduce the computation loads by extracting the validity signal due to exclude the needless backgrounds of multimodal biometrics. ICA is also applied to increase the verification performance by removing the overlapping signals due to extract the statistically independent basis of signals. Multimodal biometrics are used both the faces and the fingerprints which are acquired by Web camera and acquisition device, respectively. The proposed system has been applied to the fusion problems of 48 faces and 48 fingerprints(24 persons * 2 scenes) of 320*240 pixels, respectively. The experimental results show that the proposed system has a superior verification performances(speed, rate).

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.929-930
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• 2008

To develop reliable 3D face recognition system, many researchers also have focused on 3D face data acquisition system. Previous many 3D face acquisition systems use visible patterns to solve corresponding problem, and this pattern made anyone who wants to be verified uncomfortable. In this paper, we propose a new invisible infrared line-laser pattern for 3D face data acquisition.

• 한국지능시스템학회:학술대회논문집
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• 한국지능시스템학회 2007년도 추계학술대회 학술발표 논문집
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• pp.15-18
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• 2007

Identification of humans from multiple view points is an important task for surveillance and security purposes. For optimal performance the system should use the maximum information available from sensors. Multimodal biometric systems are capable of utilizing more than one physiological or behavioral characteristic for enrollment, verification, or identification. Since gait alone is not yet established as a very distinctive feature, this paper presents an approach to fuse face and gait for identification. In this paper we will use the single camera case i.e. both the face and gait recognition is done using the same set of images captured by a single camera. The aim of this paper is to improve the performance of the system by utilizing the maximum amount of information available in the images. Fusion is considered at decision level. The proposed algorithm is tested on the NLPR database.

• 한국멀티미디어학회논문지
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• 제16권3호
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• pp.302-308
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• 2013

본 논문은 모바일 환경에서의 다중생체인식을 통한 개인인증 시나리오에서 false acceptance rate (FAR)가 향상된 시스템을 제안한다. 다중생체인식을 위하여 얼굴인식과 화자인식을 선택하였으며, 시스템의 인식 시나리오는 다음을 따른다. 얼굴인식을 위하여 Modified census transform (MCT) 기반의 얼굴검출과 k-means 클러스터 분석 (cluster analysis) 알고리즘 기반의 눈 검출을 통해 얼굴영역 전처리를 수행하고, principal component analysis (PCA) 기반의 얼굴인증 시스템을 구현한다. 화자인식을 위하여 음성의 끝점추출과 Mel frequency cepstral coefficient (MFCC) 특징을 추출하고, dynamic time warping (DTW) 기반의 화자 인증 시스템을 구현한다. 그리고 각각의 생체인식을 본 논문에서 제안된 방법을 기반으로 융합하여 인식률을 향상시킨다. 본 논문의 실험은 Android 환경에서 수행하였으며, 구현한 다중생체인식 시스템과 단일생체인식 시스템과의 FAR을 비교하였다. 단일 얼굴인식의 FAR은 4.6%, 단일 화자인식의 FAR은 6.7%로 각각 나타났으며, 제안된 다중생체인식 시스템의 FAR은 1.8%로 크게 감소하였다.