PRZEDZIAŁAMI LINIOWE ITERACYJNE ALGORYTMY REKONSTRUKCJI OBRAZÓW W ELEKTRYCZNEJ TOMOGRAFII POJEMNOŚCIOWEJ

Waldemar Smolik

W.Smolik@ire.pw.edu.pl
Warsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division (Polska)

Jacek Kryszyn


Warsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division (Polska)

Abstrakt

Artykuł dotyczy nieliniowych algorytmów rekonstrukcji obrazów w elektrycznej tomografii pojemnościowej, dla których czas wyznaczenia macierzy Jacobiego jest bardzo długi. W pracy przedstawiono ideę iteracyjnej linearyzacji w problemach nieliniowych, która prowadzi do zmniejszenia liczby kroków wyznaczających macierz Jacobiego. Przedstawiono liniowy algorytm Landwebera z uaktualnianiem macierzy wrażliwości oraz algorytm Levenberga-Marquardta z wyznaczaniem macierzy Jacobiego tylko w wybranych krokach.


Słowa kluczowe:

problem nieliniowy, iteracyjna linearyzacja, tomografia elektryczna, rekonstrukcja obrazów z projekcji

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Opublikowane
2017-03-03

Cited By / Share

Smolik, W., & Kryszyn, J. . (2017). PRZEDZIAŁAMI LINIOWE ITERACYJNE ALGORYTMY REKONSTRUKCJI OBRAZÓW W ELEKTRYCZNEJ TOMOGRAFII POJEMNOŚCIOWEJ. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 7(1), 115–120. https://doi.org/10.5604/01.3001.0010.4598

Autorzy

Waldemar Smolik 
W.Smolik@ire.pw.edu.pl
Warsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division Polska

Autorzy

Jacek Kryszyn 

Warsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division Polska

Statystyki

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