Wyniki wyszukiwania dla: HOUNSFIELD UNIT

• Adaptive Hounsfield Scale Windowing in Computed Tomography Liver Segmentation

  Publikacja

  • J. Cychnerski
  • M. Zakrzewski
  • D. Kwiatkowski

  - Rok 2024

  In computed tomography (CT) imaging, the Hounsfield Unit (HU) scale quantifies radiodensity, but its nonlinear nature across organs and lesions complicates machine learning analysis. This paper introduces an automated method for adaptive HU scale windowing in deep learning-based CT liver segmentation. We propose a new neural network layer that optimizes HU scale window parameters during training. Experiments on the Liver Tumor...

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• Comparison of image pre-processing methods in liver segmentation task

  Publikacja

  • K. Kaczor
  • P. Nadachowski
  • M. Operlejn
  • A. Piastowski
  • M. Zielonka
  • J. Cychnerski
  • A. Kwaśniewska

  - Rok 2022

  Automatic liver segmentation of Computed Tomography (CT) images is becoming increasingly important. Although there are many publications in this field there is little explanation why certain pre-processing methods were utilised. This paper presents a comparison of the commonly used approach of Hounsfield Units (HU) windowing, histogram equalisation, and a combination of these methods to try to ascertain what are the differences...

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