Technologies and Engineering
Technologies and Engineering
ISSN 2786-5371 e-ISSN 2786-538X
DOI: 10.30857/2786-5371
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Author

Yuri Onykiienko

PhD in Technical Sciences, Associate Professor

National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

03056, 37 Beresteiskyi Ave., Kyiv, Ukraine

https://orcid.org/0000-0001-7508-8391

All articles

open access

Keywords: image compression; Huffman; RLE; Run-length encoding

Peculiarities of using Huffman and RLE methods for image compression in microcontroller systems

Мaksim Mazin, Yuri Onykiienko

https://doi.org/10.30857/2786-5371.2023.6.2

Suggested citation

Mazin, М., & Onykiienko, Yu. (2023). Peculiarities of using Huffman and RLE methods for image compression in microcontroller systems. Technologies and Engineering, 24(6), 21-30. https://doi.org/10.30857/2786-5371.2023.6.2
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  • 22.11.2023
  • 713 Views
  • Technologies and Engineering - Vol. 24, No. 6, 2023
open access

Keywords: image compression; wavelet transforms; Haar wavelet; PSNR; SSIM

Wavelet transform application for image processing in microcontroller based Internet of Things systems

Мaksim Mazin, Yuri Onykiienko

https://doi.org/10.30857/2786-5371.2023.3.2

Suggested citation

Mazin, М., & Onykiienko, Yu. (2023). Wavelet transform application for image processing in microcontroller based Internet of Things systems. Technologies and Engineering, 24(3), 15-25. https://doi.org/10.30857/2786-5371.2023.3.2
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  • 30.06.2023
  • 474 Views
  • Technologies and Engineering - Vol. 24, No. 3, 2023
open access

Keywords: microcontrollers; image recognition; convolutional neural networks; Edge Impulse; MobileNet

Peculiarities of image recognition by neural networks on the example of MobileNetV1 and MobileNetV2 in microcontroller systems

Rostyslav Denisov, Yuri Onykiienko

https://doi.org/10.30857/2786-5371.2023.2.2

Suggested citation

Denisov, R., & Onykiienko, Yu. (2023). Peculiarities of image recognition by neural networks on the example of MobileNetV1 and MobileNetV2 in microcontroller systems. Technologies and Engineering, 24(2), 15-26. https://doi.org/10.30857/2786-5371.2023.2.2
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  • 26.04.2023
  • 559 Views
  • Technologies and Engineering - Vol. 24, No. 2, 2023
open access

Keywords: Haar; Daubechies; Coiflet; Peak Signal-to-Noise Ratio; structural similarity index measure; ESP32 microcontroller

Analysis of image processing methods in the Internet of Things systems based on wavelet transformations

Мaksim Mazin, Yuri Onykiienko

https://doi.org/10.30857/2786-5371.2024.6.5

Suggested citation

Mazin, М., & Onykiienko, Yu. (2024). Analysis of image processing methods in the Internet of Things systems based on wavelet transformations . Technologies and Engineering, 25(6), 53-60. https://doi.org/10.30857/2786-5371.2024.6.5
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  • 18.12.2024
  • 429 Views
  • Technologies and Engineering - Vol. 25, No. 6, 2024
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Keywords: Long Range; computer simulators; Framework for LoRa; Received Signal Strength Indicator; signal power loss; distribution factor; simulation parameters

Computer modelling of LoRa network parameters using the FLoRa simulator

Roman Yaroshenko, Yuri Onykiienko

https://doi.org/10.30857/2786-5371.2025.1.7

Suggested citation

Yaroshenko, R., & Onykiienko, Yu. (2025). Computer modelling of LoRa network parameters using the FLoRa simulator. Technologies and Engineering, 26(1), 79-88. https://doi.org/10.30857/2786-5371.2025.1.7
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  • 26.02.2025
  • 924 Views
  • Technologies and Engineering - Vol. 26, No. 1, 2025