Abstract
Otsu’s criteria is a popular image segmentation approach that selects a threshold to maximise the inter-class variance of the distribution of intensity levels in the image. The algorithm finds the optimum threshold by performing an exhaustive search, but this is time-consuming, particularly for medical images employing 16-bit quantisation. This paper investigates particle swarm optimisation (PSO), Darwinian PSO and Fractional Order Darwinian PSO to speed up the algorithm. We evaluate the algorithms in medical imaging applications concerned with volume reconstruction, with a particular focus on addressing artefacts due to immobilisation masks, commonly worn by patients undergoing radiotherapy treatment for head-and-neck cancer. We find that the Fractional-Order Darwinian PSO algorithm outperforms other PSO algorithms in terms of accuracy, stability and speed which makes it the favourite choice when the accuracy and time-of-execution are a concern.
Original language | English |
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Title of host publication | Advances in Systems Science |
Subtitle of host publication | Proceedings of the International Conference on Systems Science 2016 (ICSS 2016) |
Editors | Jerzy Świątek, Jakub M. Tomczak |
Publisher | Springer |
Pages | 61-72 |
Number of pages | 12 |
ISBN (Electronic) | 978-3-319-48944-5 |
ISBN (Print) | 978-3-319-48943-8 |
DOIs | |
Publication status | Published - 5 Nov 2016 |
Publication series
Name | Advances in Intelligent Systems and Computing |
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Publisher | Springer International Publishing |
Volume | 539 |
ISSN (Print) | 2194-5357 |
ISSN (Electronic) | 2194-5365 |
Profiles
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Stephen Laycock
- School of Computing Sciences - Professor of Computer Graphics
- Interactive Graphics and Audio - Member
Person: Research Group Member, Academic, Teaching & Research