Speeding-up the Fitting of the Model Defining the Ribs-bounded Contour

Mykolas J. Bilinskas; Gintautas Dzemyda; Martynas Sabaliauskas

doi:10.1515/acss-2017-0009

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Speeding-up the Fitting of the Model Defining the Ribs-bounded Contour

Applied Computer Systems

Volume 21 (2017): Issue 1 (May 2017)

By: Mykolas J. Bilinskas, Gintautas Dzemyda and Martynas Sabaliauskas

Open Access

|Jun 2017

Abstract

The method for analysing transversal plane images from computer tomography scans is considered in the paper. This method allows not only approximating ribs-bounded contour but also evaluating patient rotation around the vertical axis during a scan. In this method, a mathematical model describing the ribs-bounded contour was created and the problem of approximation has been solved by finding the optimal parameters of the mathematical model using least-squares-type objective function. The local search has been per-formed using local descent by quasi-Newton methods. The benefits of analytical derivatives of the function are disclosed in the paper.

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Articles in this issue

DOI: https://doi.org/10.1515/acss-2017-0009 | Journal eISSN: 2255-8691 | Journal ISSN: 2255-8683

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Language: English

Page range: 66 - 70

Published on: Jun 13, 2017

Published by: Riga Technical University

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

Analytical models,

computed tomography,

least squares approximation,

medical diagnostic imaging

Related subjects:

Computer sciences,

Artificial intelligence,

Information technology,

Project management,

Software development

© 2017 Mykolas J. Bilinskas, Gintautas Dzemyda, Martynas Sabaliauskas, published by Riga Technical University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 21 (2017): Issue 1 (May 2017)