IWBF 2016

Final MC meeting and last action International Workshop on Biometrics and Forensics.

It is an international forum devoted specifically to the development of synergies between the biometrics and forensic science research areas.

IWBF provides the meeting place for those concerned with the usage of biometric recognition systems in forensic science applications, attracting participants from industry, research, academia and users.

Special session at the ENFSI Workshop of the “Digital imaging”

Organizing an Action presentation within the ENFSI Working Group on Digital Imaging thematic meeting, October 2015. This event continues the same path initiated in the past action periods which led to a very fruitful cooperation with researchers from the Forensic Science community as well as forensic experts. This event will allow the Action’s members to present the latest scientific results as well as to meet and propose a closer scientific exchange and open discussion with the Forensic scientific community. This event will constitute a step forward to facilitate the cooperation between the Biometrics and Forensic Science communities.

BioSIG 2015

Co-organising the 13th Int. Conference of the Biometrics Special Interest Group (BioSIG) 2015 in Darmstadt, Germany on September 9-11 2015. This event is jointly organized with the European Association for Biometrics (EAB) and will host the 9th European Biometrics Research and Industry Awards ceremony. A WG6 working group meeting co-organized with COST Action IC1206 is also planned. The WG meeting will continue the on-going discussion on societal and legal issues related to the adoption of biometric technologies in forensic cases. The co-location of a WG meeting with this conference will also facilitate the discussion and the creation of liaisons with the EAB as well as to other EU projects in areas related to Biometrics and Forensic Science. The event is co­organized by the action MC members and the BioSIG.

MC & WG meeting in conjuction with EUSIPCO 2015 Special Session

First of the two periodic Management Committee meetings and Working Group meetings. This first MC meeting will serve to verify how the planned action goals have been reached during the first 4 months of the last period. It will also allow to coordinate the efforts of the action partners toward the last action workshop as final event of the action. The associated WG meetings will be held in one session sharing all WGs presentation in one day. This meeting will allow the WG leaders to promote interaction and exchange among the WG partners.

COST IC1106 Special Session: Using Biometrics for Forensic Investigations of EUSIPCO conference addresses the usage of biometric recognition techniques and their application in the context of forensic investigations.

MM4CSF 2015 in conjuction with ICME 2015

1st International Workshop on Multimedia Crime Scene Forensics for Fingerprint Acquisition and Processing (MM4CSF)  aim to increase the so far very limited knowledge in the area of multimedia crime scene forensics and to address these challenges with an increased accuracy, automation and performance, including objective quality metrics and error measures. The goal of the workshop is furthermore to explore current and emerging work on these topics, and to provide a forum for authors to present early, yet promising results on these issues.

 

IMF2015 Special sessions on digitized forensics

WG4 meeting during Special session in the context of the 9th International Conference on IT Security Incident Management & IT Forensics addresses the traditional forensic disciplines (e.g. crime scene forensics, detection of counterfeits of physical objects and artwork) that utilize digital methods to acquire and analyze the physical traces digitally. This special session thematically complements the main conference towards novel digitized methods for the purpose of forensic challenges by bridging the gap between the emerging domains of IT and criminalistic forensics.

The scope of this special session ranges from digital processing of crime scene traces, such as fingerprints, palm prints, fibers, tool and ammunition marks or handwriting traces, to approaches for detecting and analyzing counterfeit physical objects and artworks, as well as the forensic analysis of media streams, e.g. for extracting and identifying characteristic origin patterns.

B-Wild 2015

The International Workshop on Biometrics is the Wild (B-Wild 2015) will be held in Ljubljana, Slovenia on May 8th 2015. To goal of the workshop is to present the most advanced work related to biometric recognition in unconstrained seetings (often referred to as »biometric recognition in the wild«). Topics of interest comprise all areas of biometrics ranging from detection, localization, and feature extraction techniques to modeling and classification approaches capable of operating on biometric data captured in the wild.

FG 2015

IEEE International Conference on Automatic Face and Gesture Recognition 2015. The IEEE conference series on Automatic Face and Gesture Recognition is the premier international forum for research in image and video-based face, gesture, and body movement recognition. Its broad scope includes: advances in fundamental computer vision, pattern recognition and computer graphics; machine learning techniques relevant to face, gesture, and body motion; new algorithms and applications. The conference presents research that advances the state-of-the-art in these and related areas, leading to new capabilities in various application domains.

Towards Privacy-Preserving Comparison of Finger Vein Patterns

Towards Privacy-Preserving Comparison of Finger Vein Patterns

 

Beneficiary: Marta Gomez-Barrero, PhD Student at ATVS, Universidad Autonoma de Madrid, Spain

Host: Prof. Dr. Christoph Busch, NISlab, Gjovik Universitiy College, Norway

Period: 01/01/2015 – 31/03/2015

 

Purpose of the STSM

 

Even though biometric recognition systems are nowadays widely deployed, many concerns arise from the privacy issues posed by biometric data storage.  Several approaches, based on irreversible transformations or combining cryptographic techniques with biometric recognition have been proposed. Among them, Bloom filter based template protection has been successfully applied to different biometric traits (iris, face, fingerprint) granting irreversibility while preserving verification accuracy.

In the present this Short Time Scientific Mission (STSM), the Bloom filter based approach was applied to finger vein data and its fusion with fingerprint information. The performance of both the unimodal and the multimodal systems has been assessed, as well as the irreversibility provided.

 

Work carried out during the STSM

 

  1. Development of a biometric template protection system based on finger vein patterns and Bloom filters. A similar approach to those of face and iris is followed: the initial binary template, based on Maximum Curvature Points, is divided into nBlocks rectangular blocks, and one Bloom filter is extracted from each of them.
  2. Integration with the previous work on fingerprints and the multimodal finger sensor.
  3. Development of multimodal biometric template protection system based on a feature level fusion of finger vein patterns and fingerprints, protected with Bloom filters. This is a user-friendly combination, since both traits can be acquired using the same sensor. Unlike in previous works, the protected templates now have different sizes.

 

Results of the STSM

 

In order to validate the developed systems, the accuracy and irreversibility of the final protected systems will be carefully analysed: is the recognition performance maintained after applying the privacy layer, i.e., Bloom filter transformation? Is it practically infeasible for an eventual attacker to infer any biometric data from the secured templates? Should the previous two objectives be reached, it could be argued that Bloom filters provide an efficient and general method to protect fixed length biometric templates as it has been shown for iris, face, fingerprints and vein patterns.

Experiments were carried out on the multimodal SDUMLA-HMT DB, comprising face, iris, finger vein, fingerprint and gait data from 106 subjects. The Detection Error Trade-Off (DET) curves show that performance is even improved with the addition of the Bloom filter based template protection scheme to the fingervein data.

Regarding the multibiometric scenario, performance is improved with respect to the unimodal protection systems. On the other hand, even if it decreases with respect to the fused unprotected scenario, it should be taken into account that the privacy and security of the subject is not only increased by the Bloom filter scheme: while in the unprotected scenario, fusion is carried out in the score level, a feature level fusion is implemented in the protected system.

In both cases, we can conclude that templates are also irreversible due to average number of bits activated in each Bloom filter.

 

Future Collaboration

 

As shared future research lines, we could highlight:

  • The combination of the Bloom filter based template protection scheme with another protection approach based on honey templates, developed at the NISlab, which further protects the privacy of the subject.
  • The development of a general framework for the application of Bloom filters to any given biometric characteristic.