3rd International Workshop on Biometrics and Forensics (IWBF 2015)最新文献_第2页

Gun type recognition from gunshot audio recordings 从枪击录音中识别枪型

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110240

Eva Kiktová-Vozarikova, M. Lojka, Matus Pleva, J. Juhár, A. Cizmár

引用次数: 14

Fingerprint skin moisture impact on biometric performance 指纹皮肤水分对生物识别性能的影响

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110223

M. Olsen, M. Dusio, C. Busch

引用次数: 18

Linear regression analysis of template aging in iris biometrics 虹膜生物识别模板老化的线性回归分析

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110233

Mateusz Trokielewicz

{"title":"Linear regression analysis of template aging in iris biometrics","authors":"Mateusz Trokielewicz","doi":"10.1109/IWBF.2015.7110233","DOIUrl":"https://doi.org/10.1109/IWBF.2015.7110233","url":null,"abstract":"The aim of this work is to determine how vulnerable different iris coding methods are in relation to biometric template aging phenomenon. This is considered to be particularly important when the time lapse between gallery and probe samples extends significantly, to more than a few years. Our experiments employ iris aging analysis conducted using three different iris recognition algorithms and a database of 583 samples from 58 irises collected up to nine years apart. To determine the degradation rates of similarity scores with extending time lapse and also in relation to multiple image quality and geometrical factors of sample images, a linear regression analysis was performed. 29 regression models have been tested with both the time parameter and geometrical factors being statistically significant in every model. Quality measures that showed statistically significant influence on the predicted variable were, depending on the method, image sharpness and local contrast or their mutual relations. To our best knowledge, this is the first paper describing aging analysis using multiple regression models with data covering such a wide time period. Results presented suggest that template aging effect occurs in iris biometrics to a statistically significant extent. Image quality and geometrical factors may contribute to the degradation of similarity score. However, the estimate of time parameter showed statistical significance and similar value in each of the tested models. This reveals that the aging phenomenon may as well be unrelated to quality and geometrical measures of the image.","PeriodicalId":416816,"journal":{"name":"3rd International Workshop on Biometrics and Forensics (IWBF 2015)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127037275","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: 14

Feature-based dynamic signature verification under forensic scenarios 取证场景下基于特征的动态签名验证

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110241

Rubén Tolosana, R. Vera-Rodríguez, Julian Fierrez, J. Ortega-Garcia

引用次数: 30

Comparison and fusion of multiple iris and periocular matchers using near-infrared and visible images 近红外与可见光多虹膜及眼周匹配器的比较与融合

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110234

F. Alonso-Fernandez, A. Mikaelyan, J. Bigün

引用次数: 35

Likelihood ratio based mixed resolution facial comparison 基于似然比的混合分辨率人脸比较

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110231

Y. Peng, L. Spreeuwers, R. Veldhuis

引用次数: 9

Correntropy based robust multidimensional scaling applied to faces 基于相关熵的人脸鲁棒多维缩放

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110227

Fotios D. Mandanas, Constantine Kotropoulos

引用次数: 1

Examining the examiners: an online eyebrow verification experiment inspired by FISWG 检查审查员:受FISWG启发的在线眉毛验证实验

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110222

C. Zeinstra, R. Veldhuis, L. Spreeuwers

引用次数: 2

Modest face recognition 适度的面部识别

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110235

V. Štruc, J. Krizaj, S. Dobrišek

{"title":"Modest face recognition","authors":"V. Štruc, J. Krizaj, S. Dobrišek","doi":"10.1109/IWBF.2015.7110235","DOIUrl":"https://doi.org/10.1109/IWBF.2015.7110235","url":null,"abstract":"The facial imagery usually at the disposal for forensics investigations is commonly of a poor quality due to the unconstrained settings in which it was acquired. The captured faces are typically non-frontal, partially occluded and of a low resolution, which makes the recognition task extremely difficult. In this paper we try to address this problem by presenting a novel framework for face recognition that combines diverse features sets (Gabor features, local binary patterns, local phase quantization features and pixel intensities), probabilistic linear discriminant analysis (PLDA) and data fusion based on linear logistic regression. With the proposed framework a matching score for the given pair of probe and target images is produced by applying PLDA on each of the four feature sets independently - producing a (partial) matching score for each of the PLDA-based feature vectors - and then combining the partial matching results at the score level to generate a single matching score for recognition. We make two main contributions in the paper: i) we introduce a novel framework for face recognition that relies on probabilistic MOdels of Diverse fEature SeTs (MODEST) to facilitate the recognition process and ii) benchmark it against the existing state-of-the-art. We demonstrate the feasibility of our MODEST framework on the FRGCv2 and PaSC databases and present comparative results with the state-of-the-art recognition techniques, which demonstrate the efficacy of our framework.","PeriodicalId":416816,"journal":{"name":"3rd International Workshop on Biometrics and Forensics (IWBF 2015)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134012425","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: 8

Application of stirtrace benchmarking for the evaluation of latent fingerprint age estimation robustness stirtrace基准测试在潜在指纹年龄估计鲁棒性评价中的应用

3rd International Workshop on Biometrics and Forensics (IWBF 2015) Pub Date : 2015-03-03 DOI: 10.1109/IWBF.2015.7110221

R. Merkel, M. Hildebrandt, J. Dittmann

{"title":"Application of stirtrace benchmarking for the evaluation of latent fingerprint age estimation robustness","authors":"R. Merkel, M. Hildebrandt, J. Dittmann","doi":"10.1109/IWBF.2015.7110221","DOIUrl":"https://doi.org/10.1109/IWBF.2015.7110221","url":null,"abstract":"The long-researched challenge of latent print age estimation has recently been re-visited using non-invasive capturing devices and time series. While this approach was able to provide an objective performance measure for the first time, the robustness of the scheme towards different contextual conditions is barely known. Also, StirTrace has recently been adapted from the well-known StirMark framework to the benchmarking of latent fingerprints. In this paper, the image manipulation techniques of StirTrace are transferred to the age estimation challenge and estimation performance is benchmarked for 500 short-term aging time series under varying contextual conditions. Results show that time series preprocessing is sensitive to pixel-depth reduction as well as different types of noise. Furthermore, a decreased image size has a stronger impact on the age estimation performance than a decreased resolution. The addition of texture for substrate simulation and median cut filtering for smudged print simulation are found to not be optimal in the aging context for representing this kind of distortions.","PeriodicalId":416816,"journal":{"name":"3rd International Workshop on Biometrics and Forensics (IWBF 2015)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130789687","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: 5