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Indicator of Thunderstorm
Studený, Pavel ; Sekora, Jiří (referee) ; Chmelař, Milan (advisor)
The aim of this Bachelor thesis is a theoretical analysis of thunderstorms, lightning and their detection. The theoretical description then gradually moving towards designing their own detector. The detector will operate so that when a lightning activity captures pulses which generate lightning. Lightning will register using the attached counter. After the storm could be due to information from the counters to evaluate how strong the storm was.
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Interactive Foreground/Background Segmentation on Mobile Phone
Studený, Petr ; Szentandrási, István (referee) ; Herout, Adam (advisor)
This thesis deals with the problem of foreground extraction on mobile devices. The main goal of this project is to find or design segmentation methods for separating a user-selected object from an image (or video). The main requirement of these methods is the image processing time and segmentation quality. Some existing solutions of this problem are mentioned and their usability on mobile devices is discussed. A mobile application is created within the project, demonstrating the implemented real time foreground extraction algorithm.
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Innovation of Uniform Marker Fields for Allowing Better Scale Freedom
Studený, Petr ; Zachariáš, Michal (referee) ; Herout, Adam (advisor)
This work introduces innovations to the Uniform Marker Fields which cover a~large-scale planar area and are composed of mutually overlapping partial markers. The goal of this work is to enable marker field detection from various camera distances, thus increasing the camera movement freedom. Several marker field designs were experimentally created and their detection properties were tested. A new solution to marker field design is introduced. For this solution a~synthesis algorithm of the marker field is described and implemented. Changes to an existing Uniform Marker Field detection algorithm are proposed, so that the detection algorithm can be used with the marker fields introduced in this work.
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Interest Points Tracking in Video Sequence of Non-stationary Camera
Studený, Pavel ; Davídek, Daniel (referee) ; Horák, Karel (advisor)
The thesis deals with the issue of tracking feature points earned from videosequences of hand helded camera. The work is focused on the case of moving camera and static background, and events that are associated with this case and can occur. There is studied the movement of the camera, which is given its direction and speed. The aim of this work is the election and the subsequent implementation of three fundamentally different methods suitable for tracking feature points in case of moving camera and their comparison according to set criteria. On the basis of comparison will be under pre-defined conditions chosen algorithm that is best able to deal with tracing these points.
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Simulation of the influence of intrastromal corneal lenticule implantation
Poláchová, Martina ; Studený, Pavel (advisor) ; Rozsíval, Pavel (referee) ; Mahelková, Gabriela (referee)
SIMULATION OF INFLUENCE OF INTRASTROMAL CORNEAL LENTICULE IMPLANTATION Background: Corneal stromal lenticule is a part of corneal stroma, which arises as a by-product of a refractive procedure ReLex SMILE. Its implantation has successfully been used in treatment of wide spectrum of severe diagnoses such as nonhealing corneal defects or ectasia. There have also been published cases where the lenticule was used in refractive indication such as hyperopia or presbyopia correction. In these indications, a greater emphasis on the refractive outcome is necessary, however, there is still not enough data available on the basis of which we would be able to choose the most suitable lenticule for a specific patient. Purpose: To evaluate changes in corneal refractive parameters after implantation of a stromal lenticule of different thickness. We assume that the refractive outcome depends on optical power of the used lenticule. The other important goal is to analyse possible methods of corneal lenticule preparation and storage and prove the possibility of using one donor cornea for more patients. We want to build a safe approach which would increase the efficiency of the surgery and shorten the waiting time for donor corneal tissue. Methods: We performed an ex vivo non-human study on normotonic porcine eyeballs...
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The effect of the self-defense course on the women psyche
Studený, Pavel ; Stich, Jaroslav (advisor) ; Holá, Veronika (referee)
Title: The effect of the self-defense course on the women psyche Objectives: The main aim of this thesis is to find out whether taking a self-defence course has an impact on women's psyche. Especially on the part of psychology called self-efficacy. Methods: The quantitative data collection was in form of an online questionnaire in the survio application, which was based on the previously published "GSE" questionnaire, in which responses were rated on a four-point scale. Data analysis (evaluation of the responses) was performed on the basis of a graphical display. Results: The results of the questionnaire show that taking a self-defence course has a positive impact on women's psyche. According to the scores on the "GSE" scale, it is also evident that about half of the women experienced an increase in general self-efficacy. On average, the self-efficacy of these women increased by 7.125 points. Keywords: attacker, victim, women, perception of danger, estimate accuracy
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Posterior lamellar keratoplasty
Studený, Pavel ; Dotřelová, Dagmar (advisor) ; Pašta, Jiří (referee) ; Filipec, Martin (referee)
110 9. SUMMARY Introduction The endothelial dysfunction and related corneal oedema with decreased transparency id still the main indication for keratoplasty. Method of posterior lamellar keratoplasty, which is popular in oftalmology in last few years, is suitable method because we exchange just the affected part of the cornea. Nowadays there are more surgical ways and modalities of the technique, but the best way has not been established yet. Purpose Purpose of our study was: to evaluate and analyze the efficacy of new technique of lamella preparation, to evaluate new method of lamela implantation and to analyse anatomical outcomes in experiment and clinical outcomes in practice. Materials and methods Group 1 involves 71 eyes of 55 patients, who underwent posterior lamellar keratoplasty with implantation of a hybrid lamella DMEK-S using a hydroimplantation. In group 2 were enrolled 27 eyes of 22 patients, who underwent posterior lamellar keratoplasty with implantation of a hybrid lamella DMEK-S using glide. In the postoperative period, we evaluated corrected and uncorrected visual acuity and corneal endothelial density. We analyzed and compared clinical outcomes of both groups and we focused especially on the method of implantation. Student t test and Bonferroni test were used for all statistical analysis....
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Changes in the Anterior Segment after 25G+PPV
Kopecký, Adam ; Pašta, Jiří (advisor) ; Baráková, Drahomíra (referee) ; Studený, Pavel (referee)
Univerzita Karlova 1. lékařská fakulta Studijní program: Zobrazovací metody v lékařství (P5150) Studijní obor: Zobrazovací metody v lékařství (5103V000) MUDr. Adam Kopecký Změny na předním segmentu po 25G+ PPV Changes in the Anterior Segment after 25G+ PPV Abstract Vedoucí závěrečné práce/Školitel: doc. MUDr. Jiří Pašta, CSc., FEBO Praha, 2019 Abstract: Pars plana vitrectomy is a dominant surgical method in posterior segment surgery of the eye. The principle of this method is the surgical approach via the pars plana anatomical region. With this approach, surgeon performs the posterior segment surgery without directly affecting the anterior segment of the eye. Short-term effect of pars plana vitrectomy on the anterior segment of the eye has been repeatedly proven. That might be an important factor both in assessing the complications of this method and planning the surgery in complicated patients. Generally, it is presumed that we do not observe long-term effects on anterior segment after pars plana vitrectomy. The aim of our work is to evaluate the long-term changes in the anterior segment after the uncomplicated 25G + PPV with gas tamponde. The group of 20 patients was selected according to strict indication criteria. Using a series of examinations, we examined specific parameters such as: intraocular...
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Vliv režimu práce zážehového motoru na jeho tepelnou bilanci
Studený, Petr
The diploma thesis presents a topic The Influence of the Mode of Work of a Petrol Engine on its Heat Balance. The thesis is divided into two parts. The first one is focused on the characteristics of combustion engines and on individual components of a spark-ignition engine, which are closely related to a measurement of the heat balance. Second part of the presented thesis describes methodology of the heat balance measurement on a spark-ignition engine at the motor testing institute of Department of Technology and Automobile Transport of Mendel University in Brno. It is primarily focused on change of the individual heat flow components during different loading modes and graphic representation of them.
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Changes in the Anterior Segment after 25G+PPV
Kopecký, Adam ; Pašta, Jiří (advisor) ; Baráková, Drahomíra (referee) ; Studený, Pavel (referee)
Univerzita Karlova 1. lékařská fakulta Studijní program: Zobrazovací metody v lékařství (P5150) Studijní obor: Zobrazovací metody v lékařství (5103V000) MUDr. Adam Kopecký Změny na předním segmentu po 25G+ PPV Changes in the Anterior Segment after 25G+ PPV Abstract Vedoucí závěrečné práce/Školitel: doc. MUDr. Jiří Pašta, CSc., FEBO Praha, 2019 Abstract: Pars plana vitrectomy is a dominant surgical method in posterior segment surgery of the eye. The principle of this method is the surgical approach via the pars plana anatomical region. With this approach, surgeon performs the posterior segment surgery without directly affecting the anterior segment of the eye. Short-term effect of pars plana vitrectomy on the anterior segment of the eye has been repeatedly proven. That might be an important factor both in assessing the complications of this method and planning the surgery in complicated patients. Generally, it is presumed that we do not observe long-term effects on anterior segment after pars plana vitrectomy. The aim of our work is to evaluate the long-term changes in the anterior segment after the uncomplicated 25G + PPV with gas tamponde. The group of 20 patients was selected according to strict indication criteria. Using a series of examinations, we examined specific parameters such as: intraocular...
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