Modification of fractal coding algorithm by a combination of modern technologies and parallel computations

Kvyetnyy, Roman; Sofina, Olga; Лозун, А. В.; Wójcik, Waldemar; Zhirnova, Oxana

doi:10.1117/12.2229009

Cited by 11 publications

(11 citation statements)

References 4 publications

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“…The overall level of the operational characteristics of the polarisation tomography technique (sensitivity Se , specificity Sp and balanced accuracy Ac ) reaches 90% [4,7].…”

Section: Information Analysis Of the Mueller-matrix Data Reconstructionmentioning

confidence: 97%

Differential Diagnostics of Aseptic and Septic Loosening of the Cup of the Endoprosthesis of the Artificial Hip Joint by the Methods of Polarisation Tomography

Ушенко

Olar

2019

IAPGOS

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Manuscript contains structural-logical scheme and analytical description of the differential diagnosis of aseptic and septic loosening of the artificial hip joint endoprosthesis using the methods of differential Mueller-matrix mapping of circular birefringence (CB) distributions of polycrystalline synovial films (SF) and results of determining the sensitivity, specificity and accuracy of the wavelet analysis method of differential Mueller-matrix mapping of the distributions of the CB values of polycrystalline films SF patients from the control group and groups with different severity of the hip joint pathology.

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“…The overall level of the operational characteristics of the polarisation tomography technique (sensitivity Se , specificity Sp and balanced accuracy Ac ) reaches 90% [4,7].…”

Section: Information Analysis Of the Mueller-matrix Data Reconstructionmentioning

confidence: 97%

Differential Diagnostics of Aseptic and Septic Loosening of the Cup of the Endoprosthesis of the Artificial Hip Joint by the Methods of Polarisation Tomography

Ушенко

Olar

2019

IAPGOS

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“…The voltage U п and U в comes to the analog input of the microprocessor, where the division of signals U в and U п is done taking into account the conversion factor K 11 , logarithm of the particle from division and conversion by the ADC with conversion factor K 12 to digital signal N. Then the mathematical model can be written as [12]:…”

Section: Fig 1 Block Diagram Of a Natural Gas Humidity Control Devicementioning

confidence: 99%

Experimental Study of Natural Gas Humidity Control Device

Bilynsky¹,

Horodetska²,

Sіrenko³

et al. 2020

IAPGOS

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The means of measuring humidity based on the use of the ultrahigh frequency method have been recently gaining widespread use, because of its simple, robust construction and high measuring accuracy. We used the advanced waveguide ultrahigh frequency method of measuring the moisture content of natural gas which, in contrast to the known the use of a traveling wave in a waveguide, is proposed. In this case, the interaction with waves of the ultrahigh frequency range changes the dielectric properties of the gas, and this change is registered. On the basis of an improved ultrahigh frequency method of humidity measurement, a device for natural gas humidity control using a traveling wave in a waveguide is proposed. The investigations have shown that a comparative channel increased the measurement accuracy, as a two-channel system – in contrast to a single-channel – eliminates the instability of the value of the input signal supplied to the generator. The principle of operation of a natural gas humidity control device that contains an ultrahigh frequency generator, attenuators, waveguide tees, a waveguide section for comparison, temperature sensor and pressure switches for the comparative and measuring channels, a measuring cuvette, amplifier, microprocessor, and display unit is described. A mathematical model of a natural gas humidity control device, which takes into account the values of the dielectric permittivity of the measuring gas and reference channels and contains correction factors for temperature, the use of which increases the accuracy of humidity measurement, is proposed. The lower and upper calibration points of the natural gas humidity control device are defined. The influence of correction factors for the temperature at the measurement error of the humidity is analyzed.

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“…Широке застосування на практиці набули алгоритми, які базуються на дискретних ортогональних перетвореннях (ДОП). Нові перспективні методи, які містять у собі векторне квантування, фрактальні перетворення тощо можуть забезпечити високі коефіцієнти компресії, однак їх застосування обмежуються проблемами обчислювальної складності їх реалізації [3][4][5][6].…”

Section: The Work Is Devoted To the Development And Research Of The Eunclassified

Using the pixel information value parameter in an entropy image analysis criterion

Kvyetnyy¹,

Olesenko²

2018

Metrolog. and instr.

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The work is devoted to the development and research of the entropy criterion of image analysis on its corresponding to the method of RLE-compression. The Lab color model and the CIEDE1976 color estimation metric have been analyzed. The pixel information importance parameter has been introduced, which is based on the above described metric and allows us to estimate the importance of the adjacent pixel taking into consideration the information it introduces in relation to the previous pixel. The modified entropy image analysis criterion has been developed taking into account the pixel’s information importance parameter. The adequacy of the proposed criterion has been checked on the sample of standard test images and the feasibility of its use has been proved.

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Modification of fractal coding algorithm by a combination of modern technologies and parallel computations

Cited by 11 publications

References 4 publications

Differential Diagnostics of Aseptic and Septic Loosening of the Cup of the Endoprosthesis of the Artificial Hip Joint by the Methods of Polarisation Tomography

Differential Diagnostics of Aseptic and Septic Loosening of the Cup of the Endoprosthesis of the Artificial Hip Joint by the Methods of Polarisation Tomography

Experimental Study of Natural Gas Humidity Control Device

Using the pixel information value parameter in an entropy image analysis criterion

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