PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Comparison of non-linear palette usage for gamma-ray tomography imaging

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Gamma-ray tomography is used for non-invasive studying of objects. To enable correct interpretation of such measurements, they need to be presented in analysis-friendly way. One method is to use ILST (Iterative Least Squares Technique) algorithm to visualize 1D detector data on a 2D grid, so that gammaray attenuation is visible with a resemblance to cross-section structure. However algorithm imperfections and thresholding do not always allow inferring shapes of the structure correctly. To remedy this, the analyses of the whole range of reconstructed values are to be used with a non-linear transformation function to visualize and emphasize density gradient.
Słowa kluczowe
Twórcy
autor
  • Institute of Applied Computer Science, Lodz University of Technology, Poland
autor
  • Institute of Applied Computer Science, Lodz University of Technology, Poland
autor
  • Institute of Applied Computer Science, Lodz University of Technology, Poland
Bibliografia
  • [1] D. Sankowski, V. Mosorov, S. Lewandowski, Reconstruction image error in gamma tomography. 1st Polish and international PD Forum Conference on Computer Science, Bronisławów, pp.207-211, 2005
  • [2] R. Maad, G.A. Johansen, Automatic Weight Matrix Generation for Gamma-ray Tomography. 3rdWorld Congress on Industrial Process Tomography, Banff, Canada, pp.86-89, 2003
  • [3] B.T. Hjertaker, Multiphase Flow Imaging by Dual Mode Tomography, PhD Thesis, Department of Physics University of Bergen, Norway, pp. 94-97, 1998
  • [4] C.A. Kak, M. Slaney, Principles of Computerized Tomographic Imaging, The Institute of Electrical and Electronics Engineering, New York, pp. 275-296, 1999
  • [5] R.A. Williams, M.S. Beck, Process Tomography: Principles, Techniques and Applications, Oxford: Butterworth-Heinemann, 384 p. 1995
  • [6] V. Mosorov, D. Sankowski, L. Mazurkiewicz, T.Dyakowski, The ’best-correlated pixels’ method for solid mass ow measurement using electrical capacitance tomography. Meas. Sci. and Tech., vol. 13, no. 12, pp. 1810-1814, 2002
  • [7] J. Jaworski, T. Dyakowski, Tomographic Measurements of Solids Mass Flow in Dense Pneumatic Conveying. What Do We Need to Know About the Flow Physics? In Proc: 2ndWorld Congress on Industrial Process Tomography, Hannover, Germany, pp.353-361. 2001
  • [8] S.A. Tjugum, G.A. Johansen, O.A. Iversen Multiphase Flow Regime Identication by Multibeam Gamma-ray Densitometry, Experimental Results, 3rd World Congress of Industrial Process Tomography, Banff, Canada, pp.187-192, 2003
  • [9] S. Lewandowski, V. Mosorov, J. Włodarczyk, Analiza zniekształce´n obrazów w tomografii gamma, Automatyka, vol. 9, no. 3, pp. 647-653, 2005
  • [10] W.Q. Yang, L. Peng, Image reconstruction algorithms for electrical capacitance tomography, Meas. Sci. and Tech. 14 p. R1-R13, 2003
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-40c6c0a9-fe00-403c-9728-40ae37634d31
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.