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Automatic Production of Synthetic Labelled Oct Images Using an Active Shape Model Hajar Danesh Publisher



Maghooli K1 ; Dehghani A2 ; Kafieh R3
Authors
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Authors Affiliations
  1. 1. Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
  2. 2. School of Advanced Technologies in Medicine, Medical Image and Signal Processing Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Ophthalmology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: IET Image Processing Published:2020


Abstract

Limited labelled data is a challenge in the field of medical imaging and the need for a large number of them is paramount for the training of machine learning algorithms, as well as measuring the performance of image processing algorithms. The purpose of this study is to construct synthetic and labelled optical coherence tomography (OCT) data to solve the problems of having access to accurately labelled data and evaluating the processing algorithms. In this study, a modified active shape model is used which considers the anatomical features of available images such as the number and thickness of the layers as well as their associated brightness, the location of retinal blood vessels and shadow information with respect to speckle noise. The algorithm is also able to provide different data sets with the varying noise level. The validity of the proposed method for the synthesis of retinal images is measured by two methods (qualitative assessment and quantitative analysis). © The Institution of Engineering and Technology 2020.
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