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Finger vein biometry
Stibůrek, Miroslav ; Svozilová, Veronika (referee) ; Mézl, Martin (advisor)
The following work deals with basics of biometrics terms, history of biometrics, and methods of collecting and recognizing human characteristics. The work includes facts about physics, human anatomy and physiology - these elements are necessary for a full understanding of the issue. In order to segment finger vein, a method of pre-processing scanned visual data is devised. A practical part of paper contains a proposal of a device for scanning finger vein using minicomputer Raspberry Pi and its following realization. Database of images is created using realized device and applicability of extracted finger vein for application in biometric systems is discussed.
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MRI compatible optic fiber thermometer
Stibůrek, Miroslav ; Čučka, Milan (referee) ; Harabiš, Vratislav (advisor)
The following work deals with basics of fiber optics, history of fiber optics, and methods of measuring physical quantities with the use of fiber optic sensors. The work includes facts about physics, chemistry and biology - these elements are necessary for a full understanding of the issue. In order to create an optical fiber temperature sensor based on Fabry Perot resonator principle, several methods of manufacturing the optical cavity are investigated. A practical part of paper consist in the manufacturing of the miniature fiber thermometer, its coating and testing.
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Multimode optical fiber based endoscopy
Jákl, Petr ; Tučková, Tereza ; Pikálek, Tomáš ; Stibůrek, Miroslav ; Ondráčková, Petra ; Cifuentes, Angel S. ; Šiler, Martin ; Uhlířová, Hana ; Traegaardh, Johanna ; Čižmár, Tomáš
Optical microscopy is a technique for microworld investigation using light waves scattered on particles in sample space. Its main disadvantage in the area of medicine, microbiology and neurology is its low penetration depth - it is very difficult to image structures deeper than approximately 1 mm inside tissue. Conventional endoscopes use refractive or GRIN lens with cross-section of several milimeters in diameter. Therefore, it is necessary to find less invasive probes to perform imaging in living organisms. Favourable alternative is to use multimode optical fiber probe with 100 micrometer diameter. This approach, however, requires advanced shaping of the wavefront in order to achieve diffraction limited imaging.
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Miniature Fiber-Optic Temperature Sensor Based On Fp Interferometer
Stibůrek, Miroslav
This paper deals with design, manufacturing and measurement of fiber-optic temperature sensor based on Fabry Perot interferometer. Benefits and problems regarding fiber-optic sensors are discussed. There is brief description of method used for temperature sensor interogation. The main part of the sensor contains miniature capillary made from borosilicate glass. Sample of fabricated sensor is calibrated using reference temperature measurement and tested.
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MRI compatible optic fiber thermometer
Stibůrek, Miroslav ; Čučka, Milan (referee) ; Harabiš, Vratislav (advisor)
The following work deals with basics of fiber optics, history of fiber optics, and methods of measuring physical quantities with the use of fiber optic sensors. The work includes facts about physics, chemistry and biology - these elements are necessary for a full understanding of the issue. In order to create an optical fiber temperature sensor based on Fabry Perot resonator principle, several methods of manufacturing the optical cavity are investigated. A practical part of paper consist in the manufacturing of the miniature fiber thermometer, its coating and testing.
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Finger vein biometry
Stibůrek, Miroslav ; Svozilová, Veronika (referee) ; Mézl, Martin (advisor)
The following work deals with basics of biometrics terms, history of biometrics, and methods of collecting and recognizing human characteristics. The work includes facts about physics, human anatomy and physiology - these elements are necessary for a full understanding of the issue. In order to segment finger vein, a method of pre-processing scanned visual data is devised. A practical part of paper contains a proposal of a device for scanning finger vein using minicomputer Raspberry Pi and its following realization. Database of images is created using realized device and applicability of extracted finger vein for application in biometric systems is discussed.
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