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Optimization of an Autonomous Learning Model for Detection COVID-19 Using Medical Images

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Part of the Lecture Notes in Networks and Systems book series (LNNS,volume 405)

Abstract

Since COVID-19 appeared in 2019, detection methods based on medical images depend on the criteria of the specialist. This paper shows the optimization process of an autonomous image-based learning system. To improve the classification of positive images for COVID-19, obtained from a simple chest tomography, expert judgment and singular value decomposition are used. A computed tomography scan generates images in dicom format that must be converted to jpg or bmp format, so it is necessary to determine which format has better resolution. With the new processed images, matrix of size 145 × 145, a dataset is formed to train the neural network. When obtaining the neural network model, a reduction in training times between processed and unprocessed images is observed. Likewise, the predictions of the neural network, developed in python, for the detection of COVID-19 with processed images indicate results over 98%. Another important result is that singular value decomposition can be used to determine that images in bmp format provide more detail than images in jpg format, working with 90% of the original information in the image. Finally, the image classification is improved and the neural network is optimized.

Keywords

  • Optimization
  • COVID-19
  • Neural network

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Correspondence to Rodrigo Bastidas-Chalán .

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Matlab and Python code used in this study is available in: https://drive.google.com/drive/folders/1rF5z-F22Gz0Vn_g3Y6uwq_bStaVFNTdq?usp=sharing.

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Bastidas-Chalán, R., Medina, P. (2022). Optimization of an Autonomous Learning Model for Detection COVID-19 Using Medical Images. In: Botto-Tobar, M., Cruz, H., Díaz Cadena, A., Durakovic, B. (eds) Emerging Research in Intelligent Systems. CIT 2021. Lecture Notes in Networks and Systems, vol 405. Springer, Cham. https://doi.org/10.1007/978-3-030-96043-8_18

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