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2008 15th International Conference on Systems, Signals and Image Processing

Date 25-28 June 2008

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Displaying Results 1 - 25 of 142
  • Proceedings of IWSSIP 2008

    Publication Year: 2008
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  • Proceedings of IWSSIP 2008

    Publication Year: 2008, Page(s):i - iii
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  • [Copyright notice]

    Publication Year: 2008, Page(s): iv
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  • Program committee

    Publication Year: 2008, Page(s): v
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (205 KB)

    Provides a listing of current committee members. View full abstract»

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  • International review Committee

    Publication Year: 2008, Page(s): vi
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  • Organizing Committee

    Publication Year: 2008, Page(s): vii
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  • Preface

    Publication Year: 2008, Page(s): viii
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  • Contents

    Publication Year: 2008
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  • Efficient adaptations of the SphinxTrain procedure for building a robust ASR system in Slovak

    Publication Year: 2008, Page(s):1 - 4
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (381 KB) | HTML iconHTML

    In the following article we discuss the practical and theoretical aspects of the building of Slovak ASR system using the SPHINX system and its SphinxTrain adaptation procedure for CI and CD HMM models. Concerning issues are ranging from the optimal setting of the number of states per model, through the adjustment of the number of tied states for context dependent HMMspsila, number of Gaussian mixt... View full abstract»

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  • Content-based image retrieval using feature extraction & statistical pattern recognition techniques for environmental applications

    Publication Year: 2008, Page(s):5 - 8
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (171 KB) | HTML iconHTML

    The maximization of the effective use of the planetpsilas diminishing physical resources through the use of information resources seems to be one of the most significant mandates for the new century. The plethora and variety of environmental data (text, diagrams, images, videos, and other types of measurements), together with the fact that they are stored in worldwide distributed databases, create... View full abstract»

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  • Correlation optimized scanning of segmented images

    Publication Year: 2008, Page(s):9 - 12
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (767 KB) | HTML iconHTML

    Submitted paper deals with scanning of segmented gray-scale images using two-dimensional space filling curves. A new image processing approach based on image segmentation and correlation optimization of space-filling curves is presented. The concatenation of resulting individual segments 1-dimensional representation provides higher adjacent pixel similarity than the 1-dimensional representation of... View full abstract»

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  • Efficient presentation of DICOM mammography images using Matlab

    Publication Year: 2008, Page(s):13 - 16
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1001 KB) | HTML iconHTML

    DICOM has become a standard for medical imaging. Its purpose is to standardize digital medical imaging and data for easy access and sharing. There are many commercial viewers that support DICOM image format and can read metadata, but image displaying is not always optimal. Since mammography images are mostly 12-bit grayscale images, image viewer has to be adapted for correct displaying when differ... View full abstract»

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  • Psychoacoustic evaluation of rotary switches

    Publication Year: 2008, Page(s):17 - 20
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (403 KB) | HTML iconHTML

    This paper describes the equipment and methods used in an ongoing research project. Aim of the project is the definition of desirable sounds for the acoustic feedback of operation of control elements in human machine interfaces in cars. View full abstract»

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  • Emulation of mobile payment system

    Publication Year: 2008, Page(s):21 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (574 KB) | HTML iconHTML

    Margento is a mobile payment system, enabling customers to purchase products from vending machines or in retail stores, using their mobile phones. It is designed to complement existing credit and debit card systems, by enabling all mobile phone users to turn their phones into the payment instruments of their choice. This system is based on Ultrapsilas patented mobile payment terminal using the one... View full abstract»

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  • Evolution of 3GPP Core Network

    Publication Year: 2008, Page(s):25 - 28
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (637 KB) | HTML iconHTML

    A core network of UMTS has a very long development. The first version of core network corresponds to an improved GSM/GPRS core network. The interfaces are changed and later all conception. The main changes are in using Internet Protocol, adding IMS functionality and finally in complete new packet core of technology called long term evolution. From user point of view it means increasing bit rates f... View full abstract»

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  • Evolution of mobile networks

    Publication Year: 2008, Page(s):29 - 32
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (170 KB) | HTML iconHTML

    3GPP is in the process of defining the long-term evolution (LTE) for 3G, in order to maintain the future competitiveness of 3G technology. The main targets for this evolution concern increased data rates, improved coverage, and reduced latency. Taken together these results in significantly improved service provisioning and reduced operator costs in a variety of traffic scenarios. This paper discus... View full abstract»

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  • Experiments with application of image reconstruction method based on perspective imaging techniques in X-ray CT mini system

    Publication Year: 2008, Page(s):33 - 36
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (650 KB) | HTML iconHTML

    This contribution describes experiments with image reconstruction from projections based on perspective imaging techniques. Modifications of the basic reconstruction algorithm to eliminate some imperfections following from physical properties of used X-ray detector and applied scanning technique are also mentioned in the paper. The applicability of the parallel beam and fan beam reconstruction met... View full abstract»

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  • Expert systems design for automatic analysis of communication network simulation results

    Publication Year: 2008, Page(s):37 - 40
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (120 KB) | HTML iconHTML

    This article represents those basic conditions which must exist for such systems to be classified as "expert systems". Our goal is oriented towards construction elements for an expert system; where we need to give a detailed description of each constructed part. If we want to construct an expert system, we must learn certain basic steps, which are very important during the design phase. These step... View full abstract»

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  • Forward error correction techniques suitable for the utilization in the PLC technology

    Publication Year: 2008, Page(s):41 - 44
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (107 KB) | HTML iconHTML

    Todaypsilas PLC systems are mostly limited in transmission speeds to several kilobits per seconds. Such speeds are certainly not sufficient for running popular services like a broadband Internet, a teleworking or the Video on Demand. This fact is reducing a chance of the PLC technologypsilas deployment in a wide range. One way how to overcome this problem could be in introduction of optimal errors... View full abstract»

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  • A new simple context lossless image coding algorithm based on adaptive context arithmetic coder

    Publication Year: 2008, Page(s):45 - 48
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (386 KB) | HTML iconHTML

    In the paper an effective context based lossless coding technique is presented. Three principal and one auxiliary contexts are defined. Cumulated predictor error combining 8 bias estimators is calculated. An adaptive context arithmetic coder is introduced. It is shown experimentally that the new technique is time-effective while it outperforms the well known methods having reasonable time complexi... View full abstract»

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  • MDI measurement in the IPTV

    Publication Year: 2008, Page(s):49 - 52
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (726 KB) | HTML iconHTML

    IPTV is a system where a digital television service is delivered by using IP packets over broadband network infrastructure. IPTV can be operated through telephone line that is installed almost in all houses. Transmitted video streams take bandwidth and also need priority running in queue with other services in the providerpsilas network Such has in the effect implementation the quality of service ... View full abstract»

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  • Modeling of transmission lines for digital subscriber lines testing

    Publication Year: 2008, Page(s):53 - 56
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (763 KB) | HTML iconHTML

    Digital subscriber lines such as ADSL, SHDSL and VDSL that operate over existing transmission lines are still on the top of telecommunication providerpsilas interest. Testing of these services is a part of development and educational centers that are interested in xDSL. This report is concerned with the transmission lines and their approximation through artificial transmission lines that represent... View full abstract»

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  • Multimodal biometric authentication using speech and hand geometry fusion

    Publication Year: 2008, Page(s):57 - 60
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB) | HTML iconHTML

    The paper presents biometric security system based on fusion of voice print and hand geometry recognition technologies. Speaker recognition works as text independent and is designed to verify a person using a short utterance. GMM method is used for speaker modeling and GMM-UBM classifier is used for process of matching. Hand geometry technology uses 21 extracted features from image of userpsilas h... View full abstract»

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  • Optimization of network entry procedure in relay based WiMAX networks

    Publication Year: 2008, Page(s):61 - 64
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (947 KB) | HTML iconHTML

    The paper focuses on a network entry procedure in the IEEE 802.16 standards. The procedure in PMP mode is briefly described and further contemplates how the original procedure is modified when introducing relay stations into the system. On the basis of simulation, the paper proposes an enhancement to the original association procedure in relay scenarios by adding a new phase called Path selection.... View full abstract»

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  • Parallelization of IIR filters using SIMD extensions

    Publication Year: 2008, Page(s):65 - 68
    Cited by:  Papers (2)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (91 KB) | HTML iconHTML

    The SIMD parallelization of HR or recursive filters is more difficult than that of FIR filters due to additional data dependencies. While other methods concentrate on appropriate scheduling to enable SIMD parallel execution, this paper proposes a new method where data dependencies are resolved by fusing the recursive application of filter taps into single coefficients. In this way the overhead ove... View full abstract»

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