Algorithm for the use of thermograms in ophthalmology
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Дата
2025
Науковий керівник
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Видавець
Igor Sikorsky Kyiv Polytechnic Institute
Анотація
Dіplоmа thesis ―Algorithm for the use of thermograms in ophthalmology‖, Department of Biomedical Engineering, the National Technical University of Ukraine ―Igor Sikorsky Kyiv Polytechnic Institute‖, Kyiv, 2025.
In the process of work, an analysis algorithm of patterns of speckle-interference was developed, and a program for analysis of correlation dependences of speckle pattern for the normal and pathological conditions objects.in MATLAB 2014a environment.
In this paper, a new method of vision diagnostics to using thermography was considered and investigated. It is shown that the analysis of thermal processes allows to obtain a variety of information about the state of the object of study and the course of physical processes in the area of the eyeball around the pupils.
A study was conducted using two thermal imagers and data taken from 9 people with different visual conditions, and a special program was created in MatLab to process thermograms. The results were confirmed by the real values obtained by other existing diagnostic methods used in medicine today.
The results of the study showed that the comparison of the results obtained by FLIR and processed in MatLab and FLIR QuickReport shows their coincidence, which is reflected in the typical shape of the temperature field over the entire area of the two eyes and in the area of the eyeball around the pupils, as well as in the values of the absolute temperature difference.
This shows that the methods of IR image processing performed by MatLab can be used to analyse thermograms.
Processing of the temperature relief allows detecting "temperature equilibrium areas" in which the temperature difference between the average temperature in the area and the average temperature of the entire profile can vary from 0.016°C to 0.027°C. To assess the presence or absence of pathology in the eye area, the temperature index is proposed, which in the "temperature equilibrium" areas has a value of 0.3 and 0.9. It is assumed that if the index value does not exceed 0.55, this indicates the absence of pathology in the area of the eye under study.
Опис
Ключові слова
tyermography , ophthalmology, processing thermograms, algorithm of processing images
Бібліографічний опис
Mohaned Saifelislam Mohamed Abdalgader. Algorithm for the use thermograms in ophthalmology : Dіplоmа thеsіs fоr а bаchеlоr's dеgrее : 163 Bіоmеdіcаl еngіnееrіng / Mohaned Saifelislam Mohamed Abdalgader. - Kyiv, 2025. - 76 p.