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EUROCON 2005 - The International Conference on "Computer as a Tool"

Date 21-24 Nov. 2005

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  • [Cover]

    Publication Year: 2005, Page(s): C1
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  • EUROCON 2005 - The International Conference on 'Computer as a Tool'

    Publication Year: 2005, Page(s): i
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  • Copyright page

    Publication Year: 2005, Page(s): ii
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  • Message from the Technical Program and General Chairs

    Publication Year: 2005, Page(s):iii - iv
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  • Conference committee

    Publication Year: 2005, Page(s):v - vii
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  • Conference support staff

    Publication Year: 2005, Page(s): viii
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  • List of reviewers

    Publication Year: 2005, Page(s):ix - x
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  • Contents

    Publication Year: 2005, Page(s):xi - xl
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  • [Breaker page]

    Publication Year: 2005, Page(s): 889
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  • All-MOS Non-floating One-Port Linear Resistors for Spatio-Temporal Retinotopic Processing

    Publication Year: 2005, Page(s):890 - 893
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2520 KB) | HTML iconHTML

    The voltage mirroring technique implemented with MOS transistors that exhibits performance of nonfloating linear resistive element is presented. It comprises only three MOS transistors: two of them are enhancement type and the third is depletion type MOS transistor. The possibilities of controlling the variable resistance (tunability) are presented and simulation results are given. One substantial... View full abstract»

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  • Linear Active Resistor Based on CMOS Square-Root Circuits for VLSI Applications

    Publication Year: 2005, Page(s):894 - 897
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1676 KB) | HTML iconHTML

    The main advantages of the new proposed CMOS active resistor are the improved linearity, the small area consumption and the improved frequency response. An original technique for linearizing the I(V) characteristic of the active resistor is proposed, based on the utilization of a new linear differential amplifier and on a current-pass circuit. The linearization of the original differential structu... View full abstract»

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  • A 10-Bit 500Ms/s Two-Step Flash ADC

    Publication Year: 2005, Page(s):898 - 901
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3341 KB) | HTML iconHTML

    In this article, a novel 10-bit two-step flash A/D converter architecture based on the threshold inverter quantization technique, TIQ is presented. The simulation results include 1.5V analog input range, 30 MHz input bandwidth, and 250 mWatts of power consumption at maximum sampling rate of 500 Ms/s. The process parameter and temperature variation analysis of the converter is especially included. ... View full abstract»

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  • Application of Microcontrollers in Education Based on Mobile Platform

    Publication Year: 2005, Page(s):902 - 905
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1915 KB) | HTML iconHTML

    The article describes a concept of the evaluation board based on a simple single chip microcontroller (mainly Atmel AT89C51CC03). It was developed especially for teaching purposes. The concept consists of main board and supplementary modules. This contributes to the flexibility of the whole system. We try to make labs more efficient and attractive. The mobile platform has been involved into a seme... View full abstract»

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  • Increased Autonomous Behaviour in Embedded Devices with Micro-controller Integration

    Publication Year: 2005, Page(s):906 - 909
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2345 KB) | HTML iconHTML

    Microcontrollers in dedicated systems were mainly limited to server solutions that provided a semiautomated control of a system. As the 20th century rolled to an end, systems became increasingly complex; integrating different technologies. At the same time, microprocessors became more and more a commodity tool instead of a component in an expensive machine. In this paper, we describe the impact of... View full abstract»

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  • Specific Analog Electronic Circuits Analysis Using PC-based Acquisition Card

    Publication Year: 2005, Page(s):910 - 913
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2369 KB) | HTML iconHTML

    Computer integrated laboratory for analogue electronics was developed. This paper presents analysis of specific linear electronic circuits, such as differential amplifier, oscillator, operational amplifier, power amplifier, full-wave rectifier and stabilizer with series transistor. All analysis are performed using virtual instruments implemented using personal computer acquisition card and LABVIEW... View full abstract»

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  • Control Method for Single-Phase Shunt Active Power Filter

    Publication Year: 2005, Page(s):914 - 917
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3146 KB) | HTML iconHTML

    The paper contains a description of control method for single-phase shunt active power filter, based on the control with DSP TMS320LF2407 for reference signal estimation, and hysteresis current control. Filter, based on half-bridged schematic and control by the proposed method, is simulated and experimentally studied View full abstract»

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  • [Breaker page]

    Publication Year: 2005, Page(s): 918
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  • Image Compression Using Complex Wavelet Transform

    Publication Year: 2005, Page(s):919 - 922
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2691 KB) | HTML iconHTML

    Discrete wavelet transform (DWT) became a powerful method for signal processing in the last decade. One of the most important applications of this tool is compression, for the bi-dimensional signals JPEG 2000 being an example. Although the new standard offers better results than the old one, new innovating ideas can improve even the JPEG 2000. One idea is to use complex wavelet transforms, transfo... View full abstract»

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  • Two-Pass Hexagonal Algorithm with Parallel Implementation for Video Coding

    Publication Year: 2005, Page(s):923 - 926
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2798 KB) | HTML iconHTML

    This paper presents a paralleled two-pass hexagonal (TPA) algorithm constituted by linear hashtable motion estimation algorithm (LHMEA) and hexagonal search (HEXBS) for motion estimation. In the TPA, motion vectors (MV) are generated from the first-pass LHMEA and are used as predictors for second-pass HEXBS motion estimation, which only searches a small number of macroblocks (MBs). We introduced h... View full abstract»

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  • Iterative Algorithm for Restoring Wavelet-Based Compressed Images

    Publication Year: 2005, Page(s):927 - 930
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2259 KB) | HTML iconHTML

    In this paper we propose an iterative algorithm, based on modeling of the degradation system, for reducing coding distortions in wavelet-based compressed images. The proposed algorithm iteratively reconstructs the degraded image. In every step of the iteration, image enhancement processes are implemented dependent of the image content. The performance of the proposed algorithm is evaluated experim... View full abstract»

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  • Quality of Chest X-ray Images Compressed Using JPEG and JPEG

    Publication Year: 2005, Page(s):931 - 934
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2505 KB) | HTML iconHTML

    The aim of this paper is to compare the quality of digitized chest X-ray images with digitally captured chest X-ray images in children with lung tuberculosis (TB), compressed using popular JPEG and JPEG2000 compression algorithms, for further electronic correspondence. All images were compressed using JPEG and JPEG2000 compression algorithms with six different compression degrees (3 bpp, 1.5 bpp, ... View full abstract»

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  • Comparison Criteria for Optimum Image Compression

    Publication Year: 2005, Page(s):935 - 938
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2633 KB) | HTML iconHTML

    Recently, many efficient image compression methods have been developed in order to compress image data prior to further processing. Discrete cosine transforms and wavelet transforms are examples of these compression methods. The aim of the work presented within this paper is to introduce comparison criteria for optimum compression using these well known image compression techniques. The comparison... View full abstract»

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  • The Twin Image Watermarking Algorithm (TIWA): A New Techniques for Single and Multi-Message Watermarking Based on Optimum Complete Complementary Codes

    Publication Year: 2005, Page(s):939 - 942
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4117 KB) | HTML iconHTML

    In this paper, a new robust image watermarking technique adopting an optimum encoding framework is proposed. This technique namely, the twin image watermarking algorithm TIWA, utilizes a particular kind of optimum two dimensional codes, based on complete complementary codes, for the introduced watermark encoding process. The TIWA algorithm is first presented for single user, then supported with th... View full abstract»

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  • Image Watermarking Based on the Discrete Wavelet Transform Statistical Characteristics

    Publication Year: 2005, Page(s):943 - 946
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1661 KB) | HTML iconHTML

    The current paper proposes a robust watermarking method for still images that embeds a binary watermark into the detail subbands of the image wavelet transform. The perceptually significant coefficients are selected for each subband using a different threshold. The threshold is computed based on the statistical analysis of the wavelet coefficients. For greater invisibility of the mark, the approxi... View full abstract»

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  • Watermark Generation using Image-dependent Key for Image Authentication

    Publication Year: 2005, Page(s):947 - 950
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (390 KB) | HTML iconHTML

    In order to increase security of the blind watermarking schemes for image authentication it is desirable to use image-dependent keys in the process of watermark generation. In this paper we propose a new watermarking method for image authentication where the watermark is generated using the image hash as a key. The robust image hash, invariant to legitimate modifications, but fragile to illegitima... View full abstract»

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