2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS)最新文献

Ear recognition via sparse representation and Gabor filters 基于稀疏表示和Gabor滤波器的人耳识别

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374589

R. Khorsandi, S. Cadavid, M. Abdel-Mottaleb

引用次数: 15

Towards optimal countermeasures against wolves and lambs in biometrics 针对狼和小羊的生物识别优化对策

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374559

Takao Murakami, Kenta Takahashi, Kanta Matsuura

{"title":"Towards optimal countermeasures against wolves and lambs in biometrics","authors":"Takao Murakami, Kenta Takahashi, Kanta Matsuura","doi":"10.1109/BTAS.2012.6374559","DOIUrl":"https://doi.org/10.1109/BTAS.2012.6374559","url":null,"abstract":"Claimants and enrollees who have high similarity scores against many others are referred to as wolves and lambs, respectively. These animals can cause false accepts against many others and compromise the security of the system. The aim of this paper is to develop a fusion algorithm which has security against both of them while minimizing the number of query samples the genuine claimant has to input. To achieve this aim, we first propose a minimum log-likelihood ratio based sequential fusion scheme (MLR scheme). We prove that the MLR scheme keeps WAP (Wolf Attack Probability) and LAP (Lamb Accept Probability), the maximum of the claimant-specific FAR and the enrollee-specific FAR, less than the desired value if the score distributions are perfectly estimated, except in the case of adaptive spoofing wolves. We also prove that the MLR scheme is nearly optimal with respect to the average number of inputs (ANI) of the genuine claimant under some conditions. We secondly propose an input order decision scheme based on the KL (Kullback-Leibler) divergence which maximizes the expectation of the genuine log-likelihood ratio, to further reduce ANI of the MLR scheme in the case where the KL divergence differs from one modality to another. The results of the experimental evaluation using the CASIA-FingerprintV5 showed the effectiveness of our schemes.","PeriodicalId":294848,"journal":{"name":"2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121918072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Passive single image-based approach for camera steering in face recognition at-a-distance applications 基于被动单图像的相机转向方法在远距离人脸识别中的应用

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374603

Eslam A. Mostafa, M. El-Melegy, A. Farag

引用次数: 4

Self-similarity representation of Weber faces for kinship classification 韦伯亲属分类面孔的自相似性表征

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374584

Naman Kohli, Richa Singh, Mayank Vatsa

引用次数: 81

Evaluation of serial and parallel multibiometric systems under spoofing attacks 欺骗攻击下串行和并行多生物识别系统的评估

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374590

Z. Akhtar, G. Fumera, G. Marcialis, F. Roli

引用次数: 72

Block based face recognition approach robust to nose alterations 基于块的人脸识别方法对鼻子变化具有鲁棒性

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374566

N. Kose, N. Erdogmus, J. Dugelay

引用次数: 7

Efficient iris segmentation using Grow-Cut algorithm for remotely acquired iris images 利用Grow-Cut算法对远程虹膜图像进行高效分割

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374563

Chun-Wei Tan, Ajay Kumar

引用次数: 22

On iris camera interoperability 虹膜相机的互操作性

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374599

Sunpreet S. Arora, Mayank Vatsa, Richa Singh, Anil K. Jain

引用次数: 33

New impostor score based rejection methods for continuous keystroke verification with weak templates 新的基于冒名顶替者分数的拒绝方法，用于弱模板的连续击键验证

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374585

Md S. Hossain, K. Balagani, V. Phoha

{"title":"New impostor score based rejection methods for continuous keystroke verification with weak templates","authors":"Md S. Hossain, K. Balagani, V. Phoha","doi":"10.1109/BTAS.2012.6374585","DOIUrl":"https://doi.org/10.1109/BTAS.2012.6374585","url":null,"abstract":"Previous studies in continuous keystroke verification have shown that users' templates built with enrollment samples collected in multiple sessions are instrumental in reducing verification error rates. However, to our knowledge, no work has addressed how to achieve low error rates in situations where only weak keystroke templates (i.e., templates created from a single enrollment session) are available. To address the problem, we propose a framework comprising of impostor score based normalization, impostor score based rejection, and fusion. We introduce a new formulation to incorporate reject option in verification with weak templates and develop a new impostor score based rejection method called Order Statistic (OS) rejection method. We compare the performance of OS rejection method with two other impostor score based rejection methods - 1) Otsu and 2) Gaussian. We performed experiments on a large keystroke database of 1100 users. Results show that our proposed framework significantly reduces the EERs of continuous keystroke verification with weak templates and the OS rejection method achieves better error-reject trade-off than Otsu and Gaussian rejection methods. We achieved 59.97 percent to 86.74 percent reduction in average EERs compared to the individual verifiers when we used OS rejection method in conjunction with impostor score based normalization and fusion.","PeriodicalId":294848,"journal":{"name":"2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130838224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Human eye movements as a trait for biometrical identification 人眼运动作为生物特征识别的特征

2012 IEEE Fifth International Conference on Biometrics: Theory, Applications and Systems (BTAS) Pub Date : 2012-12-06 DOI: 10.1109/BTAS.2012.6374580

Ioannis Rigas, G. Economou, S. Fotopoulos

引用次数: 46