Poslední příspěvky

  • Ultrasonic Approach to Nonivasive Temperature Monitoring During Microwave Thermotherapy 

    Novak, P.; Zuna, I.; Pousek, L.; Vrba, J. (Společnost pro radioelektronické inženýrství, 2001-06)
    Microwave thermotherapy (MT) is an oncological treatment. At present the invasive thermometer probes are clinically used for temperature measuring during an MT. Any invasive handling of tumors is of high-risk. A new possible ...
  • Identifying the Deterministic Chaos by Using the Lyapunov Exponents 

    Kvarda, P. (Společnost pro radioelektronické inženýrství, 2001-06)
    This paper presents an investigation of deterministic chaos. The modified Colpitts oscillator is used as an example of deterministic chaos in electronic circuits. The most known quality of deterministic chaotic systems the ...
  • Impulse Detectors for Noised Sequences 

    Lukac, R. (Společnost pro radioelektronické inženýrství, 2001-06)
    This paper is focused on a problem of impulse detection in the dynamic image environments corrupted by impulse noise. Using a proposed architecture that includes an impulse detector and the median filter, the effective ...
  • Two Layer Vector Quantization of Images 

    Mihalik, J.; Gladisova, I.; Michalcin, V. (Společnost pro radioelektronické inženýrství, 2001-06)
    This paper deals with spatial scaleable vector quantization of images by using two layers. At the base layer the small dimensional full search vector quantization of an image of block means is carried out. After subtracting ...
  • Image Compression by Gabor Expansion 

    Andras, L.; Chmurny, J. (Společnost pro radioelektronické inženýrství, 2001-06)
    Transform-based coding methods are popular in data compression. In the paper, an easily implemented method is proposed for the weighting factors of the Gabor decomposition. The method is based on the least-mean- squares ...
  • The Modified Node Voltage Method as Tool for Calculation of Network Functions and Sensitivities 

    Valsa, J. (Společnost pro radioelektronické inženýrství, 2001-06)
    The paper deals with the well-known modified node voltage method that is generally used for formulation of system equations in universal network simulation programs. It shows very efficient ways if utilizing this type of ...
  • Contactless Opto-electronic Area and Their Attainable Measuring Accuracy 

    Ricny, V. (Společnost pro radioelektronické inženýrství, 2001-06)
    This paper deals with the problems of the contactless area measurement on the principle of video signal processing. This video signal generates TV camera, which scans the measured object. Basic principle of these meters ...
  • Digital Watermarking in Wavelet Transform Domain 

    Candik, M.; Matus, E.; Levicky, D. (Společnost pro radioelektronické inženýrství, 2001-06)
    This paper presents a technique for the digital watermarking of still images based on the wavelet transform. The watermark (binary image) is embedded into original image in its wavelet domain. The original unmarked image ...