Abstract
Visualization of inner gastrointestinal (GI) tract is an important aspect in diagnosis of diseases such as the bleeding and colon cancer. Wireless capsule endoscopy (WCE) provides painless imaging of the GI tract without much discomfort to patients via near-lights imaging model and with burst light emitting diodes (LEDs). This imaging system is designed to minimize battery power and the capsule moves through the GI tract with natural peristalsis movement and the color video data are captured via wireless transmitter in the WCE. Despite the advantages of WCE videos, the obtained frames exhibit uneven illumination and sometimes result in darker regions that may require enhancement afterwards for better visualization of regions of interest. In this work, we extend a human visual system (HVS) based image enhancement model that uses a feature-linking neural network model based on timing precisely of the spiking neurons. Experimental results on various WCE frames show that we can obtain better enhancement of regions of interest and compared to other enhancement approaches in the literature we obtain better quality restorations in general. Further, we show the applicability of our enhancement method on improving the automatic image segmentation, and 3D shape from shading visualization reconstruction indicating that it is viable to be used within a computer-aided diagnosis systems for GI tract diseases.
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V. B. Surya Prasath graduated PhD from Indian Institute of Technology Madras in 2010, majoring in Mathematics. Currently, he works as an assistant professor at the Division of Biomedical Informatics, Cincinnati Children’s Hospital Medical Center, and also affiliated with the Departments of Biomedical Informatics, Electrical Engineering and Computer Science, University of Cincinnati, USA. He was a postdoctoral fellow at the Department of Mathematics, University of Coimbra, Portugal (2010–2012). From 2012 to 2017 he was assistant professor at the Computational Imaging and VisAnalysis (CIVA) Lab of the University of Missouri, USA. He had summer fellowships/visits at Kitware Inc. NY, USA, The Fields Institute, Canada, and Institute for Pure and Applied Mathematics (IPAM), University of California Los Angeles, USA. He has over 180 works on international peer-reviewed journals and conference proceedings. Research interests are nonlinear PDEs, regularization methods, inverse and ill-posed problems, variational and PDE-based image processing, computer vision with applications in remote sensing, biometrics, and biomedical imaging domains.
Dang Ngoc Hoang Thanh graduated from Belarusian State University in 2008 and M.Sc. in 2009 majoring in Applied Mathematics; graduated PhD of Computer Science (2016) from Tula State University, Russia. Currently, he works as an assistant professor at department of Information Technology, School of Business Information Technology, University of Economics Ho Chi Minh city (UEH), Vietnam. He was a lecturer and researcher at department of Information Technology, Hue College of Industry, Vietnam. He is a member of scientific organization INSTICC (Portugal), ACM (USA), IAENG (Taiwan) and he is also a member of international conferences committee such as IEEE ICCE 2018 (Vietnam), IWBBIO (Spain), IEEE ICIEV (USA), IEEE ICEEE (Turkey), ICIEE (Japan), ICoCTA (Australia), ICMTEL (UK), etc. He has over 50 works on international peer-reviewed journals and international conference proceedings, 5 book chapters, one book, and one European patent. Research interests are image processing, computer vision, machine learning, data mining, computational mathematics, and optimization.
Le Thi Thanh graduated from Voronezh State University in 2009 and M.Sc. in 2011 majoring in Applied Mathematics; graduated PhD of Applied Mathematics (2018) from Tula State University, Russia. Currently, she works as an assistant professor at Ho Chi Minh city University of Transport, Vietnam. She has over 20 works on international peer-reviewed journals and conference proceedings. Research interests are mathematical models, nonlinear PDEs, image processing, computational mathematics, and dynamical systems.
Nguyen Quang San graduated from Belarusian State University in 2015 and M.Sc. in 2016 majoring in Theoretical Physics. He is now a PhD candidate of Theoretical Physics at Belarusian State University, Belarus. Currently, he works as a lecturer/researcher at Nha Trang University, Vietnam. He has over 15 works on international peer-reviewed journals and conference proceedings, and one book. Research interests are image processing, quantum computing, quantum mechanics, nonlinear PDEs, and dynamical systems.
Sergey Dvoenko received Dr. Sci. degree in 2002 at the Dorodnitsyn Computing Centre of the Russian Academy of Sciences (CC of RAS), in the field of Theoretical Foundations of Informatics (05.13.17 of RAS) with the thesis “Pattern Recognition Methods for Arrays of Inter-connected Data”. He received his PhD degree in 1992 after the postgraduate course at the Institute of Control Sciences of the Russian Academy of Sciences (ICS of RAS), in the field of Computer Sciences (05.13.16 of RAS) with the thesis “Learning Algorithms for Event Recognition in Experimental Waveforms”. Since 2003, he is a professor at the Institute of Applied Mathematics and Computer Sciences of the Tula State University (IAMCS of TSU) in the Tula city, Russia. Currently, he is a professor at the Tula State University. Some recent courses: Data Analysis (Machine Learning and Clustering), Decision Theory, Operational Research, Functional and Logical Programming, System Analysis, Algorithms and Calculus Theory. His scientific and research interests include the following fields: image processing, hidden Markov models and fields in applied problems, machine learning and pattern recognition, cluster analysis and data mining. He has over 60 scientific publications (papers in peer-reviewed journals and international conference proceedings), one European patent. He is a member of the Russian Association for Pattern Recognition and Image Analysis (RAPRIA).
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Prasath, V.B., Thanh, D.N., Thanh, L.T. et al. Human Visual System Consistent Model for Wireless Capsule Endoscopy Image Enhancement and Applications. Pattern Recognit. Image Anal. 30, 280–287 (2020). https://doi.org/10.1134/S1054661820030219
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DOI: https://doi.org/10.1134/S1054661820030219