Browsing by Author "Duman, Merve"
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Master Thesis Automatic identification and measurement of antibiogram analysis(2019) Duman, MerveIn this thesis, an automatic identification method of antibiogram analysis is implemented, existing methods are investigated and results are discussed. In an antibiogram analysis, inhibition zones of drugs read by humans might be measured with some mistakes. These mistakes such as misreading during the analysis process or the conditions like imperfect or partial seeding inhibition zones can be solved with automatic identification methods. Also, there is a need for periodically reading or a tracking system because inhibition zones change with time. To overcome antibiogram analysis problems, some improvements are made on the image. As pre-processing operations, Otsu Thresholding, largest object finding, binary image mask, morphological erosion and closing operations are applied. Circular Hough Transform is used to find drugs and profile lines are drawn to find inhibition zones. The Otsu thresholding is used to determine the zone borders. The results obtained from the algorithm are evaluated and discussed.
