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Interactive Medical Image Segmentation
Kříž, Radim ; Štancl, Vít (referee) ; Španěl, Michal (advisor)
This work deals with the possibilities of interactive segmentation of medical image data using a ITK library and segmentation method level-set. It discusses the possibilities of an interactive influencing of segmentation with user-defined edges and facilitate segmentation using modes allow automatic adjustment of parameters. An integral part of this work is user-friendly segmentation tool built on ITK library and segmentation method level-set, which clearly demonstrates the possibilities of modes and added edges in practice. Design and implementation of this tool is also part of this work.
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Advanced Security Methods of Medical Image
Roček, Aleš ; Šimák, Boris (referee) ; Molnár, Karol (referee) ; Dostál, Otto (advisor)
Medical institutions adapt digital based archiving of patients records images to fulfil its advantages like availability, easy sharing, high resolution etc. Digital form of records brings apart from advantages also disadvantages at security risks. It is easier attacking, stealing, using without authorization etc. This thesiss deals with this security issues, describes the needs and approaches to security, explains the reasons for deployment of watermarking. It names three main methods of medical image watermarking and compares their plus and cons: zero, reversible and watermarking in Region Of Non Interest (RONI). New method of Zero-reversible-RONI watermarking, that combine advantages of described methods, is proposed. For practical tests of properities of proposed method was used huge database of medical images. Application of the proposed method on this database delivers very promising results. Practical results discussion and comparison with other medical imaging watermarkikng methods are at the end of this thesis.
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Advanced Security Methods of Medical Image
Roček, Aleš ; Šimák, Boris (referee) ; Molnár, Karol (referee) ; Dostál, Otto (advisor)
Medical institutions adapt digital based archiving of patients records images to fulfil its advantages like availability, easy sharing, high resolution etc. Digital form of records brings apart from advantages also disadvantages at security risks. It is easier attacking, stealing, using without authorization etc. This thesiss deals with this security issues, describes the needs and approaches to security, explains the reasons for deployment of watermarking. It names three main methods of medical image watermarking and compares their plus and cons: zero, reversible and watermarking in Region Of Non Interest (RONI). New method of Zero-reversible-RONI watermarking, that combine advantages of described methods, is proposed. For practical tests of properities of proposed method was used huge database of medical images. Application of the proposed method on this database delivers very promising results. Practical results discussion and comparison with other medical imaging watermarkikng methods are at the end of this thesis.
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Interactive Medical Image Segmentation
Kříž, Radim ; Štancl, Vít (referee) ; Španěl, Michal (advisor)
This work deals with the possibilities of interactive segmentation of medical image data using a ITK library and segmentation method level-set. It discusses the possibilities of an interactive influencing of segmentation with user-defined edges and facilitate segmentation using modes allow automatic adjustment of parameters. An integral part of this work is user-friendly segmentation tool built on ITK library and segmentation method level-set, which clearly demonstrates the possibilities of modes and added edges in practice. Design and implementation of this tool is also part of this work.
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