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Gaussian filters with rotating kernel
Vintr, Tomáš ; Martišek, Dalibor (referee) ; Druckmüller, Miloslav (advisor)
The objective of this thesis is to create Gaussian 1D filters with rotating kernel theory which enables to program algorithm for noise reduction and beam structure highlighting in a digital picture of the solar corona. A fragment of original picture of solar corona and of pictures filtred by this algorithm is in the enclosure.
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Movement planning and analysis of device for absolute GNSS antenna calibration
Hynčicová, Tereza ; Kuruc, Michal (referee) ; Kratochvíl, Radim (advisor)
The thesis is aimed at movement analysis and planning of a robotic device for absolute GNSS antenna calibration, which is developed at Brno University of Technology, Faculty of Civil Engineering, Institute of Geodesy. The first section is devoted to independent verification of the temporal synchronization of the robotic device’s movement, which is a prerequisite for the successful antenna calibration. The following section is focused on analysis of moveable characteristics since their knowledge is crucial for the following movement planning. Method of the device’s movement shooting by camera and evaluation its position based on gained photographs is used for both testing measurements. The final part is dedicated to movement planning, especially to calibrated antenna weighting influence on device’s movement characteristics, test results implementation into the observation program and arm movement planning considering the homogeneous calibration measurement layout.
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Object Detection in Video Sequences
Šebela, Miroslav ; Beneš, Radek (referee) ; Číka, Petr (advisor)
The thesis consists of three parts. Theoretical description of digital image processing, optical character recognition and design of system for car licence plate recognition (LPR) in image or video sequence. Theoretical part describes image representation, smoothing, methods used for blob segmentation and proposed are two methods for optical character recognition (OCR). Concern of practical part is to find solution and design procedure for LPR system included OCR. The design contain image pre-processing, blob segmentation, object detection based on its properties and OCR. Proposed solution use grayscale trasformation, histogram processing, thresholding, connected component,region recognition based on its patern and properties. Implemented is also optical recognition method of licence plate where acquired values are compared with database used to manage entry of vehicles into object.
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Image processing of CT and MRI data for biomechanical applications
Nagy, Ivan
In the case of image processing to obtain the geometry of tissues means an image segmentation. A segmentation is a process subdividing an image into its constituent parts or objects. There are some basic ways to achieve this. For detecting intensity discontinuities (borders) edge detectors are used. They can be implemented as approximate mathematical gradient operators or derivative operators. This paper prasents comparison of edge detectors on a set of CT images of human body.
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Digitální projekční moiré topografie se dvěma projektory
Rössler, T. ; Hrabovský, Miroslav ; Pluháček, F.
The double-projector moiré topography is a well-known optical topografic method based on the projection of the shadow or light gratings onto the measured object under various angles. There can be observed except these projected gratings another structure on the record image of result intensity field. Thanks the development of computer techniques it is possible to apply another procedure.
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