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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-3ea7b2a7-52d5-4b30-be7d-c02d72653c7c

Czasopismo

Biocybernetics and Biomedical Engineering

Tytuł artykułu

Investigation of opacity development in the human eye for estimation of the postmortem interval

Autorzy Cantürk, İ.  Çelik, S.  Feyzi Şahin, M.  Yağmur, F.  Kara, S.  Karabiber, F. 
Treść / Zawartość http://www.ibib.waw.pl/pl/wydawnictwa/biocybernetics-and-biomedical-enginering-bbe/bbe-tomy http://www.journals.elsevier.com/biocybernetics-and-biomedical-engineering/
Warianty tytułu
Języki publikacji EN
Abstrakty
EN Estimation of the postmortem interval (PMI) has attracted the attention of many researchers. It is generally accepted as a challenging task in forensic medicine. Due to its difficulty, researchers have tried to estimate the PMI using different physical and chemical techniques. Since the PMI estimation accuracies of previous studies are not at the desired level, new methods should be developed to more accurately estimate the PMI. The development of opacity in the eye in the PMI might be an important breakthrough in this field. After death, corneal hydration occurs due to degenerated endothelial cells. The degenerated endothelial barrier of the cornea cannot prevent the flow of aqueous humor to the cornea, which results in opacity. The amount of aqueous humor in the cornea determines the level of opacity. Since the flow of aqueous humor to the cornea will continue for a while, opacity is expected to increase with the PMI. In this study, images of human eyes were investigated using computer-based image analysis. The corneal and non-corneal opacities of the recorded eye images increase during the experiment. The experimental results prove that there is a correlation between the elapsed time after death and the development of opacity in the corneal and non-corneal regions in human cases. Exponential curve fitting is employed to observe the decay of the opacity over time. A repeated ANOVA test is also used to show that the opacity development is statistically significant.
Słowa kluczowe
PL szacowanie czasu śmierci   medycyna sądowa   zmętnienie rogówki   ekstrakcja cech obrazu  
EN time of death estimation   forensic medicine   postmortem interval   corneal opacity   image feature extraction  
Wydawca Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences
Elsevier
Czasopismo Biocybernetics and Biomedical Engineering
Rocznik 2017
Tom Vol. 37, no. 3
Strony 559--565
Opis fizyczny Bibliogr. 26 poz., rys., tab., wykr.
Twórcy
autor Cantürk, İ.
  • Yıldız Technical University, Davutpasa Campus, Faculty of Electrical & Electronics, Department of Electronics & Communications Engineering, 34220 Esenler, Istanbul, Turkey, icanturk@yildiz.edu.tr
autor Çelik, S.
  • Council of Forensic Medicine, İstanbul, Turkey
autor Feyzi Şahin, M.
  • Council of Forensic Medicine, İstanbul, Turkey
autor Yağmur, F.
  • Faculty of Medicine, İstanbul Medeniyet University, İstanbul, Turkey
autor Kara, S.
  • Institute of Biomedical Engineering, Fatih University, İstanbul, Turkey
autor Karabiber, F.
  • Computer Engineering Department, Yıldız Technical University, İstanbul, Turkey
Bibliografia
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Uwagi
PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-3ea7b2a7-52d5-4b30-be7d-c02d72653c7c
Identyfikatory
DOI 10.1016/j.bbe.2017.02.001