2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS)最新文献

Speaker age estimation and gender detection based on supervised Non-Negative Matrix Factorization 基于监督非负矩阵分解的说话人年龄估计与性别检测

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6052385

M. H. Bahari, H. V. hamme

引用次数: 44

Entropy estimator and formal model for vascular skeletons 血管骨架的熵估计和形式化模型

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6053681

Daniel Hartung

引用次数: 1

Fast 3-D fingertip reconstruction using a single two-view structured light acquisition 使用单双视图结构光采集快速三维指尖重建

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6053684

R. D. Labati, A. Genovese, V. Piuri, F. Scotti

{"title":"Fast 3-D fingertip reconstruction using a single two-view structured light acquisition","authors":"R. D. Labati, A. Genovese, V. Piuri, F. Scotti","doi":"10.1109/BIOMS.2011.6053684","DOIUrl":"https://doi.org/10.1109/BIOMS.2011.6053684","url":null,"abstract":"Current contactless fingertip recognition systems based on three-dimensional finger models mostly use multiple views (N > 2) or structured light illumination with multiple patterns projected over a period of time. In this paper, we present a novel methodology able to obtain a fast and accurate three-dimensional reconstruction of the fingertip by using a single two-view acquisition and a static projected pattern. The acquisition setup is less constrained than the ones proposed in the literature and requires only that the finger is placed according to the depth of focus of the cameras, and in the overlapping field of views. The obtained pairs of images are processed in order to extract the information related to the fingertip and the projected pattern. The projected pattern permits to extract a set of reference points in the two images, which are then matched by using a correlation approach. The information related to a previous calibration of the cameras is then used in order to estimate the finger model, and one input image is wrapped on the resulting three-dimensional model, obtaining a three-dimensional pattern with a limited distortion of the ridges. In order to obtain data that can be treated by traditional algorithms, the obtained three-dimensional models are then unwrapped into bidimensional images. The quality of the unwrapped images is evaluated by using a software designed for contact-based fingerprint images. The obtained results show that the methodology is feasible and a realistic three-dimensional reconstruction can be achieved with few constraints. These results also show that the fingertip models computed by using our approach can be processed by both specific three-dimensional matching algorithms and traditional matching approaches. We also compared the results with the ones obtained without using structured light techniques, showing that the use of a projector achieves a faster and more accurate fingertip reconstruction.","PeriodicalId":129267,"journal":{"name":"2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134542256","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: 21

Compression of touchless multiview fingerprints 压缩非接触式多视图指纹

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6052380

Nelson C. Francisco, A. Zaghetto, B. Macchiavello, E. Silva, M. Lima-Marques, Nuno M. M. Rodrigues, S. Faria

引用次数: 4

Towards a better comprehension of the role of image registration in face recognition algorithms 更好地理解图像配准在人脸识别算法中的作用

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6052384

Breno Santos de Araújo, A. Machado

{"title":"Towards a better comprehension of the role of image registration in face recognition algorithms","authors":"Breno Santos de Araújo, A. Machado","doi":"10.1109/BIOMS.2011.6052384","DOIUrl":"https://doi.org/10.1109/BIOMS.2011.6052384","url":null,"abstract":"Automatic face recognition systems have currently reached high hit rates. Nevertheless, simple steps like image registration are not being considered in several methods. The alignment of the set of images in a same coordinated system must be seen as an initial and crucial step in algorithms that are based on dimensionality reduction. This work aims at analyzing the importance of registration as a preprocessing step in recognition algorithms based on eigen decomposition. A set of experiments was conducted, in which images of publicly available databases were processed under rotation and translation. These operations put the images on controlled non-registered form for precise evaluation of three recognition methods — Principal Component Analysis, Two-dimensional Principal Component Analysis and FisherFaces, combined with the Euclidean distance and cosine similarity measurements. The experiments revealed the best combination of methods. Moreover, the behavior of hit rate with respect to rotation and translation misalignments were characterized as a Gaussian function.","PeriodicalId":129267,"journal":{"name":"2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116500851","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: 2

FOVEA: A video frame organizer via identity extraction and analysis FOVEA:通过身份提取和分析的视频帧组织者

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6052381

M. De Marsico, M. Nappi, D. Riccio

引用次数: 0

ECG biometric authentication using Pulse Active Width (PAW) 基于脉冲主动宽度(PAW)的心电生物识别认证

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6052382

S. Safie, J. Soraghan, L. Petropoulakis

引用次数: 19

On the security evaluation of a multibiometric system based on a voting strategy involving likelihood ratio statistic tests 基于似然比统计检验的投票策略的多生物识别系统安全性评价

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6053683

Emanuela Marasco, Carlo Sansone

{"title":"On the security evaluation of a multibiometric system based on a voting strategy involving likelihood ratio statistic tests","authors":"Emanuela Marasco, Carlo Sansone","doi":"10.1109/BIOMS.2011.6053683","DOIUrl":"https://doi.org/10.1109/BIOMS.2011.6053683","url":null,"abstract":"Multimodal biometric systems integrate information from multiple sources to improve the performance of a typical unimodal biometric system. The use of multimodal biometric systems has been encouraged by the threat of spoofing, where an impostor fakes a biometric trait. The reason lies on the assumption that, an impostor must fake all the fused modalities to be accepted. Recent studies showed that, there is a vulnerability of the existing fusion schemes in presence of attacks where only a subset of the fused modalities is spoofed. Among the possible information fusion approaches, recently, a framework for the optimal combination of match scores that is based on the likelihood ratio (LR) test has been presented. It is based on the modeling of the distributions of genuine and impostor match scores as a finite Gaussian mixture models. Since standard LR test demonstrated to be very sensitive to spoofing attacks, in this paper we analyze the robustness of a voting strategy based on likelihood ratio test in the presence of spoofing. The analysis has been carried out on the Biosecure multimodal database, demonstrating the advantages of a voting strategy with respect to the standard LR approach.","PeriodicalId":129267,"journal":{"name":"2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS)","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115211228","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: 2

Robustness of multi-modal biometric systems under realistic spoof attacks against all traits 针对所有特征的真实欺骗攻击下多模态生物识别系统的鲁棒性

2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS) Pub Date : 2011-11-01 DOI: 10.1109/BIOMS.2011.6053682

Z. Akhtar, B. Biggio, G. Fumera, G. Marcialis

{"title":"Robustness of multi-modal biometric systems under realistic spoof attacks against all traits","authors":"Z. Akhtar, B. Biggio, G. Fumera, G. Marcialis","doi":"10.1109/BIOMS.2011.6053682","DOIUrl":"https://doi.org/10.1109/BIOMS.2011.6053682","url":null,"abstract":"Spoof attacks consist in submitting fake biometric traits to biometric systems, and are a major threat that can curtail their security. Multi-modal biometric systems are commonly believed to be intrinsically more robust to spoof attacks, but recent works have shown that they can be evaded by spoofing even a single biometric trait. This result was however obtained under the worst-case scenario that the attacker is able to fabricate an exact replica of the genuine biometric trait, which was simulated by assuming that the matching score distribution of fake traits is identical to the one of genuine users. This demands for a more thorough investigation of the robustness of multi-modal biometric systems against realistic spoof attacks, namely under non-worst case scenarios. In this paper we focus on bi-modal systems made up of a face and a fingerprint matcher, whose scores are fused using the well-known sum, product, weighted sum and likelihood ratio (LLR) rules. We evaluate their robustness against realistic spoof attacks obtained by fabricating fake biometric traits. The main goal of our study is to investigate whether a realistic spoof attack against both modalities can allow the attacker to crack the multimodal system. Our results show that even in a realistic, non-worst case scenario, the false acceptance rate (FAR) can remarkably increase.","PeriodicalId":129267,"journal":{"name":"2011 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications (BIOMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131340199","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: 20