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2012 2nd International Conference on Digital Information processing and communications, ICDIPC 2012

作者： Mednis, Artis Zviedris, Reinholds Cyber-Physical Systems Laboratory Institute of Electronics and Computer Science 14 Dzerbenes Str. Riga LV 1006 Latvia Digital Signal Processing Laboratory Institute of Electronics and Computer Science 14 Dzerbenes Str. Riga LV 1006 Latvia Faculty of Computing University of Latvia 19 Raina Blvd. Riga LV 1586 Latvia

ISBN: (纸本)9781467311069

The most important advantages of RFID technology are transmitting and receiving of information wirelessly as well as low implementation and maintenance costs. Such attractive features are reason for widespread usage of RFID systems - from tracking of assets to measurement of the timing during sporting events. To ensure secure operation of such systems they should have appropriate protection against reverse engineering. The contribution of this paper is a method for reverse engineering of specific RFID system used for time measurements during sporting events. Selected communication protocol aspects are discussed and their replication with off-the-shelf hardware and software with the aim to simulate a non-existing RFID tag with certain self selected ID number are presented. © 2012 IEEE.

关键词： Radio frequency identification (RFID)

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An Efficient Multispectral Palmprint Identification System Using Radial Basis Function

An Efficient Multispectral Palmprint Identification System U...

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IEEE International New Circuits and Systems Conference

作者： Abdallah Meraoumia Salim Chitroub Ahmed Bouridane Universite Kasdi Merbah Ouargla Laboratoire de Genie Electrique Faculte des Sciences et de la Technologie et des Sciences de la Matiere Signal and Image Processing Laboratory Electronics and Computer Science Faculty USTHB School of Computing Engineering and Information Sciences Northumbria University

ISBN: (纸本)9781479906185

Several studies for palmprint-based personal identification have focused on improving the performance of palmprint images captured under visible light. However, during the past few years, some researchers have considered multispectral images to improve the effect of these systems. Compared with color images, multispectral images provide additional information due to its variety of spectral bands. In this paper, we propose an efficient online personal identification system based on MultiSpectral Palmprint (MSP) using the Radial Basis Function (RBF) and two-dimensional Block based Discrete Cosine Transform (2D-BDCT). In this study, a segmented MSP is firstly divided into non-overlapping and equal-sized blocks, and then, applies the 2D-BDCT over each block. By using zigzag scan order (starting at the top-left) each transform block is reordered to produce the feature vector. Subsequently, RBF method is used for modeling and so for classifying the feature vectors. The proposed method is validated for their efficacy on the available PolyU MSP Database of 300 users. Our experimental results show the effectiveness and reliability of the proposed approach, which brings both high identification and accuracy rate.

关键词： Biometrics Identification MSP 2D-BDCT RBF Data fusion

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Efficient person recognition by Finger-Knuckle-Print based on 2D Discrete Cosine Transform

Efficient person recognition by Finger-Knuckle-Print based o...

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2012 International Conference on Information Technology and e-Services, ICITeS 2012

作者： Saigaa, Mohammed Meraoumia, Abdallah Chitroub, Salim Bouridane, Ahmed Signal and Image Processing Laboratory Electronics and Computer Science Faculty USTHB P.O. box 32 El Alia Bab Ezzouar 16111 Algiers Algeria School of Computing Engineering and Information Sciences Northumbria University Pandon Building Newcastle upon Tyne United Kingdom

ISBN: (纸本)9781467311663

Biometric system has been actively emerging in various industries for the past few years, and it is continuing to roll to provide higher security features for access control system. In the recent years, hand based biometrics is extensively used for personal recognition. In this paper a new biometric system based on texture of the hand knuckles, namely Finger-Knuckle-Print (FKP), is proposed. To extract the image local texture information and represent the FKPs features, the 2D Block based Discrete Cosine Transform (2D-BDCT), is employed. Finally, performance of all finger types is determined individually and a min rule fusion is applied to develop a multimodal system. Experimental results show that 2D-DCT-mod2 yields the best performance for identifying FKPs and it is able to provide an excellent recognition rate and provide more security. © 2012 IEEE.

关键词： Discrete cosine transforms

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RFID communication: How well protected against reverse engineering?

RFID communication: How well protected against reverse engin...

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International Conference on Digital Information processing and communications (ICDIPC)

作者： Artis Mednis Reinholds Zviedris Cyber-Physical Systems Laboratory Institute of Electronics and Computer Science Riga Latvia Faculty of Computing University of Latvia Riga Latvia Digital Signal Processing Laboratory Institute of Electronics and Computer Science Riga Latvia

关键词： Reverse engineering Protocols RFID tags Hardware Software Security

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Does independent component analysis perform well for iris recognition?

Does independent component analysis perform well for iris re...

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作者： Bouraoui, Imane Chitroub, Salim Bouridane, Ahmed Signal and Image Processing Laboratory Electronics and Computer Science Faculty University of Science and Technology of Houari Boumedienne P.O. Box 32 El - Alia Bab - Ezzouar 16111 Algiers Algeria School of Computing Engineering and Information Sciences Northumbria University Newcastle upon Tyne United Kingdom Department of Computer Science King Saud University Riyadh Saudi Arabia

This paper is concerned with an application of ICA for a possible improvement of iris recognition by replying to the question: does ICA perform well for such purpose? To achieve this, the hypotheses and the theoretical concepts of ICA methods used are handled so that coherence with iris authentication application is guaranteed. Our contribution is not in the development of new theoretical concepts of ICA but it is in adapting its basic ideas for our application. Also, it consists of deploying its powerful and its efficiency for iris recognition, and consequently;it's potential to embed it on smart cards for increasing application domains of secure biometric-based individual identification systems. We have developed a comparative study between the implemented ICA algorithms and other recent and popular methods of iris recognition. We have demonstrated our experimental results using some mathematical criteria. Three different subsets of international certified CASIA iris image databases are used for testing the different implemented methods. The conclusion of such comparative study is that the ICA-based approaches are more effective and more practical than other existing methods. © 2012 - IOS Press and the authors. All rights reserved.

关键词： Biometrics

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Efficient person recognition by Finger-Knuckle-Print based on 2D Discrete Cosine Transform

Efficient person recognition by Finger-Knuckle-Print based o...

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International Conference on Information Technology and e-Services (ICITeS)

作者： Mohammed Saigaa Abdallah Meraoumia Salim Chitroub Ahmed Bouridane Signal and Image Processing Laboratory Electronics and Computer Science Faculty University of Sciences and Technology Houari Boumediene Algiers Algeria School of Computing Engineering and Information Sciences Northumbria University Newcastle-upon-Tyne UK

关键词： Feature extraction Biometrics Databases Vectors Thumb Discrete cosine transforms

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Multimodal biometric person recognition system based on fingerprint & Finger-Knuckle-Print using correlation filter classifier

Multimodal biometric person recognition system based on fing...

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IEEE International Conference on communications (ICC)

作者： Abdallah Meraoumia Salim Chitroub Ahmed Bouridane Signal and Image Processing Laboratory Electronics and Computer Science Faculty University of Sciences and Technology Houari Boumediene Algiers Algeria Department of Computer Science King Saud University Riyadh Saudi Arabia School of Computing Engineering and Information Sciences Northumbria University Newcastle-upon-Tyne UK

ISBN: (纸本)9781457720529

Biometrics is an effective technology for personnel identity recognition, but uni-modal biometric systems which use a single trait for recognition will suffer from problems like noisy sensor data, non-universality, lack of distinctiveness of the biometric trait, and spoof attacks. These problems can be tackled by using multi-biometrics in the system. Hand-based person recognition provides a reliable, low-cost and user-friendly viable solution for a range of access control applications. As one of the most popular biometric traits, fingerprints (FP) are widely used in personal recognition. However, a novel hand-based biometric feature, Finger-Knuckle-Print (FKP), has attracted an increasing amount of attention. In this paper, FP and FKP are integrated in order to construct an efficient multi-biometric recognition system based on matching score level and image level fusion. In this study we use the minimum average correlation energy (MACE) and Unconstrained MACE (UMACE) filters in conjunction with two correlation plane performance measures, max peak value and peak-to-sidelobe ratio, to determine the effectiveness of this method. The experimental results showed that the designed system achieves an excellent recognition rate on the Hong Kong polytechnic university (PolyU) FKP and high resolution fingerprint database.

关键词： Correlation Databases Training Discrete wavelet transforms Biomedical imaging Biometrics (access control) Fingers

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Mobile TV with Long Time Interleaving and Fast Zapping

Mobile TV with Long Time Interleaving and Fast Zapping

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IEEE International Conference on Multimedia and Expo Workshops (ICMEW)

作者： Cornelius Hellge Valentina Pullano Manuel Hensel Giovanni E. Corazza Thomas Schierl Thomas Wiegand Image Communication Laboratory Berlin Institute of Technology Berlin Germany Multimedia Communications Group Image Processing Department Fraunhofer HHI Berlin Germany Department of Electronics Computer Science and Systems Faculty of Engineering University of Bologna Bologna Italy

The main challenge for provisioning of Mobile TV services is to overcome long burst errors as are often found in mobile reception conditions. Long time interleaving can be implemented by means of Application Layer FEC (AL-FEC) to increase the time diversity of the signal and thereby its robustness against burst errors. The main obstacle of long time interleaving for streaming services is the increase in service tune-in time, which significantly decreases the Quality of Experience (QoE) of end users. That is why today's Mobile TV systems are provisioned in a way to minimize the time interleaving length to provide an acceptable tune-in time, though the service robustness would significantly benefit from a longer interleaving length. This paper presents a new way of service provisioning that marries fast zapping and long time interleaving by combining Layer-Aware FEC and layered media codecs with unequal time interleaving and an appropriate transmission scheduling. The effect of the proposed scheme on the QoE as well as the service tune-in time is analyzed. Simulation results within a Gilbert-Elliot channel report the benefit of the proposed scheme, which for the first time enables broadcast services with fast tune-in and at the same time long time interleaving.

关键词： Forward error correction Static VAr compensators Media Streaming media Decoding Delay Robustness

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Relationships between control parameters and outputs in the two mass model of vocal cords

Relationships between control parameters and outputs in the ...

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International Conference on Multimedia Computing and Systems

作者： Teffahi, Hocine Houari Boumedienne University of Science and Technology Electronics and Computer Science Faculty Signal Processing and Speech Communication Laboratory Box no. 32 El-Alia 16111 Algiers Algeria

ISBN: (纸本)9781612847306

We present numerical simulations performed with a two-mass model of the vocal folds. We use the model to compute the fundamental frequency, the duty ratio and the intensity of volume velocity as a function of two control parameters: sub-glottal pressure and vocal cords tension. Our results contribute to a better characterization of a now classic vocal-fold model. © 2011 IEEE.

关键词： speech

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Cooperative MIMO Channel Modeling and Multi-Link Spatial Correlation Properties

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IEEE Journal on Selected Areas in communications 2012年第2期30卷 388-396页

作者： Xiang Cheng Cheng-Xiang Wang Haiming Wang Xiqi Gao Xiao-Hu You Dongfeng Yuan Bo Ai Qiang Huo Ling-Yang Song Bing-Li Jiao School of Electronics and Computer Science Peking University Beijing China Key Laboratory of Wireless Sensor Network & Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University China Joint Research Institute for Signal and Image Processing School of Engineering & Physical Sciences Heriot-Watt University Edinburgh UK School of Information Science and Engineering South East University Najing China School of Information Science and Engineering Shandong University Jinan China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing China

In this paper, a novel unified channel model framework is proposed for cooperative multiple-input multiple-output (MIMO) wireless channels. The proposed model framework is generic and adaptable to multiple cooperative MIMO scenarios by simply adjusting key model parameters. Based on the proposed model framework and using a typical cooperative MIMO communication environment as an example, we derive a novel geometry-based stochastic model (GBSM) applicable to multiple wireless propagation scenarios. The proposed GBSM is the first cooperative MIMO channel model that has the ability to investigate the impact of the local scattering density (LSD) on channel characteristics. From the derived GBSM, the corresponding multi-link spatial correlation functions are derived and numerically analyzed in detail.

关键词： MIMO Correlation Channel models Scattering Educational institutions Fading Adaptation models

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