1. bookVolume 21 (2017): Issue 1 (May 2017)
Journal Details
License
Format
Journal
eISSN
2255-8691
First Published
08 Nov 2012
Publication timeframe
2 times per year
Languages
English
access type Open Access

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

Published Online: 13 Jun 2017
Volume & Issue: Volume 21 (2017) - Issue 1 (May 2017)
Page range: 66 - 70
Journal Details
License
Format
Journal
eISSN
2255-8691
First Published
08 Nov 2012
Publication timeframe
2 times per year
Languages
English
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.

Keywords

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