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Vztah mezi konstrukcí pozemní komunikace a nehodovostí
Bláha, Karel
The diploma thesis called „Relationship between the land transportation construction and accident rate“ follows on from my bachelor thesis „Active features of secure traffic within land transportation“. The focus is again on a specific location, which is Moravská Třebová. The theoretical part concerns construction of land transportation, in particular its surface which affects the car motion on roadway. Main part of the text concerns evaluation of roadways’ surfaces listed as category II. In the intravilan of concrete districts that are administrated by Pardubice region as well as further analysis of situation and recommendation in order to contribute to smoothness of land transportation and security, in particular protecting lives and health of people. The aim of this thesis is to accomplish safe transport infrastructure not just for drivers, but for all road users like pedestrians, bikers, kids and others.
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Stereo reconstruction of vehicles' cross section
Boch, Jan ; Richter, Miloslav (referee) ; Honec, Peter (advisor)
This master thesis deals with the design of a stereo system for processing vehicle images and subsequent reconstruction of their 3D model. The aim of the thesis is to reconstruct the vehicle model to control its dimensions and load on which restrictions are imposed in case of the use of critical transport infrastructure (tunnels, bridges). The thesis begins with a mathematical description of scene capture and continues with a research of theoretical possibilities of system configuration. One Intel RealSense 3D camera and one RGB camera were chosen as the most suitable configuration. The software solution works with the design of several different algorithms of which it is worth mentioning reconstruction using depth maps or triangulation.The resulting models in the last chapter contain data only from the aforementioned 3D camera. The model from the 3D camera could not be improved with the images from the RGB camera and camera can therefore be declared redundant. Resulting 3D model is still sufficient for the purpose of vehicle inspection and in case of continued work, another, more optimal configuration should be designed.
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Analysis of Pedestrian Recognition by the Vehicle Driver
Šlapal, David ; Kropáč, František (referee) ; Maxera, Pavel (advisor)
This diploma thesis deals with vehicle driver’s recognition of pedestrian in different driving and light conditions. The introductory part will be devoted to basic theoretical knowledge. The attention is focused on safety measures to prevent accidents between pedestrians and vehicles. The main part will be devoted to the pedestrian´s visibility from the driver´s point of view during reduced visibility on roads in darkness. The practical part of this work summarizes the results of the experiment using the selected vehicle and chosen participants. During this experiment, the distance necessary for detection, recognition and identification of the pedestrian will be measured, to stop the vehicle safety in time or to avoid an obstacle on the road.
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Object detection in video using neural networks and Android application
Mikulec, Vojtěch ; Kiac, Martin (referee) ; Myška, Vojtěch (advisor)
This master’s thesis deals with the implementation of functional solution for classifying road users using mobile device with Android operating system. The goal is to create Android application which classifies vehicles in real time using rear-facing camera and saves timestamps of classification. Testing is performed mostly with own, diversely modificated dataset. Five models are trained and their performance is measured in dependence on hardware. The best classification performance is from pretrained MobileNet model where transfer learning with 6 classes of own dataset is used – 62,33 %. The results are summarized and a method for faster and more accurate traffic analysis is proposed.
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Risk Analysis of Self-Driven Vehicles
Weigel, Filip ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
The goal of this thesis was to design and implement system for risk analysis in self-driving cars. This thesis focused on design and implementation of system for risk analysis in models. One of the requirements for the system was to be flexible and robust. Design of the risk analysis was presented at theoretical level and then implemented in models of ABS and ESP systems in UPPAAL environment. The system was then tested via multiple experiments. The experiments were beneficial and the system for risk analysis correctly evaluated failure scenarios with adequate response to the rising level of risk. Experiment outputs were then presented at graphs with comment to each failure scenario.
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Computational Model and Analysis of Vehicle Driving Dynamics
Mrázek, František ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
The bachelor's thesis deals with the creation of a computational model and analysis of vehicle dynamics in connection with the principles and rules that are closely related to vehicle dynamics. We will use the key physical phenomena related to the driving dynamics of the model vehicle, suitable for modeling and analysis. The model will demonstrate the driving dynamics of vehicles in several appropriately selected situations and creates the possibility to compare the results with data obtained from freely available publications and tests.
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Vehicles Re-Identification with License Plate
Hažmuka, Tomáš ; Špaňhel, Jakub (referee) ; Sochor, Jakub (advisor)
This thesis describes design and development of an aplication for reidentification of vehicles in multiple camera streams. It explains methods of image processing, object detection and identification of symbols. Created application uses OpenCV library. It is written in the C++ language, standart C++14. Furthemore, this thesis describes testing of application on input data including training of the reference data.
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Economic aspects of the traffic situation and driver behaviour
VLACHOVÁ, Pavlína
The bachelor thesis deals with roundabout rules and calculates the cost of waiting when entering a roundabout. It also focuses mainly on people entering and exiting the roundabout. The theoretical part defines the basic concepts related to traffic, driver behaviour and roundabouts. The practical part itself consists of an introduction to the city Tábor and the three roundabouts located there, which is one of the most important parts of this bachelor thesis. For the purpose of the evaluation of the thesis it was necessary to obtain records of the roundabouts. As a next step, an evaluation of where the some freely available traffic census data from the Directorate of Roads and Motorways from the year 2020, and together with the data from the video recordings of the roundabouts, the formulas are used to calculate the total actual and societal costs. At the end of the work it was possible improvement measures in the form of road markings were identified and then, together with the social costs, it was assessed whether the acquisition of traffic signs would be worthwhile.
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Risk Analysis of Self-Driven Vehicles
Weigel, Filip ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
The goal of this thesis was to design and implement system for risk analysis in self-driving cars. This thesis focused on design and implementation of system for risk analysis in models. One of the requirements for the system was to be flexible and robust. Design of the risk analysis was presented at theoretical level and then implemented in models of ABS and ESP systems in UPPAAL environment. The system was then tested via multiple experiments. The experiments were beneficial and the system for risk analysis correctly evaluated failure scenarios with adequate response to the rising level of risk. Experiment outputs were then presented at graphs with comment to each failure scenario.
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