Subjective versus digital image analysis of the corneal opacity as a tool for estimation of time since death with studying the effect of eye closure and ambient temperature
paulis, M., Younis, R. (2019). Subjective versus digital image analysis of the corneal opacity as a tool for estimation of time since death with studying the effect of eye closure and ambient temperature. EKB Journal Management System, 19(1), 129-143. doi: 10.21608/ejfsat.2019.7185.1048
melad gad paulis; Rehab H A Younis. "Subjective versus digital image analysis of the corneal opacity as a tool for estimation of time since death with studying the effect of eye closure and ambient temperature". EKB Journal Management System, 19, 1, 2019, 129-143. doi: 10.21608/ejfsat.2019.7185.1048
paulis, M., Younis, R. (2019). 'Subjective versus digital image analysis of the corneal opacity as a tool for estimation of time since death with studying the effect of eye closure and ambient temperature', EKB Journal Management System, 19(1), pp. 129-143. doi: 10.21608/ejfsat.2019.7185.1048
paulis, M., Younis, R. Subjective versus digital image analysis of the corneal opacity as a tool for estimation of time since death with studying the effect of eye closure and ambient temperature. EKB Journal Management System, 2019; 19(1): 129-143. doi: 10.21608/ejfsat.2019.7185.1048

Subjective versus digital image analysis of the corneal opacity as a tool for estimation of time since death with studying the effect of eye closure and ambient temperature

The Egyptian Journal of Forensic Sciences and Applied Toxicology
Article 6, Volume 19, Issue 1, March 2019, Page 129-143  XML PDF (952.25 K)
Document Type: Original Article
DOI: 10.21608/ejfsat.2019.7185.1048
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Authors
melad gad paulis1; Rehab H A Younis email 2
1forensic science & toxicology depart., faculty of medicine, Minia University
2forensic medicine and clinical toxicology department, faculty of medicine, Minia university. Minia city
Abstract
Subjective versus digital image analysis of the corneal opacity as a tool for estimation of time since death with studying the effect of eye closure and ambient temperature

Abstract
Estimation of time pass since death is a great forensic confrontation. Corneal opacity is an endorsed forensic tool for estimation of time pass since death. Previous researches depend on subjective way while others used digital image analysis system. In this study we compare subjective and digital image analysis methods, in addition to studying effect of eye closure and temperature on development of corneal opacity. Closed and opened rabbit eyes corneas were photographed at different postmortem intervals. A scoring system was used to assess the cornea opacity. Image analysis was done by MATLAB software. Simple regression analysis revealed better prediction of the postmortem intervals using image analysis parameters than when subjective assessment was employed. On using multiple regression analysis, there is improvement of SEE from 2.5-3.6 hr. to 1.1-1.3 when using equation of 3 elements of colors red, green and blue. Corneal opacity slightly increased in closed eye than in opened one. In summer corneal opacity occur faster than in winter.
Key words: time pass since death, corneal opacity, digital imaging, eye closure, temperature
Keywords
time pass since death; corneal opacity; digital imaging; eye closure; Temperature
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