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Hard and soft exudates detection in retinal images
Válková, Hana ; Lamoš, Martin (referee) ; Kolář, Radim (advisor)
The thesis deals with automatic detection of soft and hard exudates in retinal images of the human eye. In its introduction the thesis describes the issue of diabetes in relation to the damage to the retina of the eye. What is described in the first place is diabetic retinopathy, its symptoms and progression of the disease. Another section is devoted to describing DIARETDB1, the freely accessible database which besides other things contains a set of images showing various degrees of disease, evaluation of images from the experts and the evaluation protocol. The next section discusses several methods for automatic detection of hard and soft exudates. The practical part of the bachelor’s thesis is aimed at image pre-processing with respect to the normalization of retinal images, the selected method for adaptive transformation of contrast was implemented. This part also containts description of chosen methology of thresholding, feature extraction based on lesions intensity and its surroundings, use of Ho Kashyap classifier is described, classification of lesions in images is followed. In conclusion realized methods is evaluated.
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Criterial function for retinal image registration
Horáková, Pavla ; Kolář, Radim (referee) ; Harabiš, Vratislav (advisor)
This bachelor‘s thesis is focused on comparison criterial functions, which are usually used in registration of retinal images. Criterial functions reflect degree of images’ sameness thereby they influence proper registration considerably. The aim of this thesis is to discover criterial function, which is the best for image registration of retina. Registration of images is very difficult; it is important to get some informations such as an uniqueness or a shape of function.
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Nursing care for patients suffered from diabetes mellitus, with severe eye disorder, being cured with insulin pumps
NOVÁKOVÁ, Kateřina
The reason why the issue of diabetes mellitus is a frequent topic is that diabetes is ranked among the most frequent diseases of infant as well as adult age. Diabetes has been accompanying the mankind for several centuries and the long-term research into diabetes treatment has brought substantial changes in recent years. From the original treatment, which our grand-parents still remember, by means of metal needles and metal syringes via disposable syringes with integrated needles, treatment with insulin pens, an insulin pump is becoming a great revolution in diabetes treatment. More and more diabetics are being converted to the insulin pump treatment and it is becoming a routine work of diabetologic nurses. Diabetologic nurses are those who are responsible for mastering the specifics of nursing care about diabetics during education in conversion to the insulin pump treatment. The late diabetes complication ? diabetic retinopathy is one of the most frequent indications for introduction of insulin pump treatment. The visual impairment caused by diabetic retinopathy means remarkable limitation for a diabetic in activities that might be a problem for a person without visual deficit. This is why these problems inspired me to elaboration of my Bachelor Thesis called ?Nursing care about patients with diabetes mellitus with heavy visual impairment, treated by insulin pump?. The theoretical part deals with the diabetes mellitus disease in general. It briefly summarizes definitions and the disease history, causes of occurrence and clinical picture of diabetes with complications. It also focuses on diabetes treatment. We are detailing the problems of diabetic retinopathy, visual impairment, insulin pump treatment and the specific of nursing care linked to the insulin pump treatment. The practical part is aimed at selected targets and research questions. The research sample consists of six respondents, diabetics with heavy visual impairment treated by insulin pump. Deep semi-standardized interviews were conducted with the respondents, extended by observation of the respondents during mastering the insulin pump operation. Sets of questions relating to the selected targets and research questions were prepared for all the respondents. The interviews were elaborated into case reports the research data into the output tables. Observation of the respondents during mastering the insulin pump operation was recorded into a prepared observation sheet. The output data were used for drawing conclusions and elaboration of recommendation for diabetologic nurses for providing nursing care to diabetics with heavy visual impairment, treated by insulin pump. The conclusion of the thesis summarizes the data obtained from interviews with the respondents and observation of the respondents during mastering the insulin pump operation and recommendation of possible procedures in problems arisen in providing nursing care to diabetics with heavy visual impairment, treated by insulin pump. This Bachelor Thesis may be applied as educational material for future medical staff ? students of secondary schools, higher professional schools and colleges focused on health care. It may also be used as study material for improvement of awareness among general nurses working not only in hospitals, but also external nurses from home care agencies at public seminars for general nurses.
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