Browsing Факультет радіоелектроніки, комп’ютерних систем та інфокомунікацій (№ 5) by Author "Lukin, V.V."
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Analysis of opportunities to improve image denoising efficiency for DCT-based filter
Zemliachenko, A.N.; Ivakhnenko, I.G.; Chernova, G.A.; Lukin, V.V. (ХАІ, 2018)The subject matter of the paper is the process of image filtering. The goal is to provide high efficiency of denoising according to metrics that are more adequate to human vision system than traditional criteria as mean ... -
Analysis of two-step approach for compressing texture images with desired quality
Li, F.; Krivenko, S.S.; Lukin, V.V. (ХАІ, 2020)A task of lossy compression of remote sensing and other types of images with providing the desired quality is considered. Quality is mainly characterized by the peak signal-to-noise ratio (PSNR) but visual quality metrics ... -
Comparison of algorithms for controlled pixel-by-pixel classification of noisy multichannel images
Lukin, V.V.; Proskura, G.A.; Vasilyeva, I.K. (ХАІ, 2019)The subject of this study is the pixel-by-pixel controlled classification of multichannel satellite images distorted by additive white Gaussian noise. The paper aim is to study the effectiveness of various methods of image ... -
Low SNR treshold in rapid estimators of complex sinusoidals
Djurovic, I.; Lukin, V.V. (ХАІ, 2016)A task of estimation of complex sinusoid frequency is considered. A particular but practically important case of low signal-to-noise ratio (SNR) is studied. The low SNR threshold, commonly overlooked in development of ... -
Prediction of compression ratio for ADCT coder
Zemliachenko, A.N.; Vozel, B.; Lukin, V.V.; Zelensky, A.A. (ХАІ, 2016)One way to predict compression ratio for efficient coder called ADCT is proposed. Prediction is based on determination of a simple parameter before compression that can be easily calculated in 8x8 pixel blocks. Such ...