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Creating a Python-based Automated System for Recognizing Emotions from Facial Expressions.
Zima, Samuel ; Malik, Aamir Saeed (referee) ; Hussain, Yasir (advisor)
Táto práca skúma rozpoznávanie výrazu tváre (angl. facial expression recognition - FER) pomocou hlbokého učenia so zameraním na použitie v zariadeniach s obmedzenou pamäťou a výpočtovými zdrojmi. Začína výskumom emócií a výrazov tváre z psychologického, biologického a sociologického hľadiska. Jadro výskumu tvorí návrh a implementácia automatizovaného systému pre FER s použitím súboru dát FER-2013. Tento systém využíva prispôsobenú architektúru SqueezeNet rozšírenú o jednoduchý obchvat, vrstvy náhodného odpadu neurónov a vrstvy dávkovej normalizácie. Tento systém dosahuje na súbore dát FER-2013 presnosť 66,37 %. Pre porovnávaciu analýzu sa tento model porovnal s upravenou architektúrou VGG16, ktorá dosiahla presnosť 65,09 %. Táto práca poskytuje cenné poznatky o vývoji menších, efektívnejších modelov strojového učenia pre FER, ktoré sú použiteľné pre široké spektrum zariadení vrátane nízkovýkonných procesorov a vstavaných zariadení.
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Graffiti Tags Re-Identification
Pavlica, Jan ; Beran, Vítězslav (referee) ; Špaňhel, Jakub (advisor)
This thesis focuses on the possibility of using current methods in the field of computer vision to re-identify graffiti tags. The work examines the possibility of using convolutional neural networks to re-identify graffiti tags, which are the most common type of graffiti. The work experimented with various models of convolutional neural networks, the most suitable of which was MobileNet using the triplet loss function, which managed to achieve a mAP of 36.02%.
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Recognition of Vehicle Class in Image
Čabala, Roman ; Kodym, Oldřich (referee) ; Špaňhel, Jakub (advisor)
The goal of this bachelor thesis is to recognize the type of vehicle from the image using neural networks. Vehicles are divided into 6 types, namely a car, a small van, a van, a mini truck, a truck and a bus. The data set was picked from videos that record the trajectory of the vehicles. Subsequently, an image annotation tool was built. The following architectures were used for network training: VGG16, ResNet50, Xception, InceptionResNet-v2. The result of the work is a comparison of architectures. All architectures were trained and achieved a result above 90%.
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Automated Retinal Images Quality Assessment Using Machine Learning
Mikheda, Vladislav ; Vaško, Marek (referee) ; Kavetskyi, Andrii (advisor)
This work focuses on solving the problem of retinal image quality assessment. When diagnosing a disease, physicians focus on the quality of individual anatomical structures of the retina, according to which the diagnosis is made. The aim of this work is to design and implement a program for automated quality assessment of retinal images based on anatomical structures using neural networks. Overall six neural networks were developed and implemented to solve the abovementioned problem. Three of them were to segment individual anatomical structures of the retina, and three others were meant to evaluate images based on the quality of the segmented structure. Testing of each neural network separately, as well as testing of the entire program, was performed. The model allows the evaluation of the quality of retinal images based on the anatomical structures.
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Video summarization with deep neural networks
Matějek, Libor ; Slanina, Martin (referee) ; Frýza, Tomáš (advisor)
The work deals with machine learning and application in the field of video summarization. The thesis includes a basic introduction to neural networks and related data. It also describes the basic architectures of neural networks. The greatest emphasis is placed on convolutional neural networks, which are pivotal in the field of image processing. A further approximation is subject to the mathematical vector reduction of PCA and the Euclidean distance description. The theoretical part closes with information about K Means clustering. The implementation is then realized using the Tensorflow framework with API from Keras.
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Graffiti Tags Re-Identification
Pavlica, Jan ; Beran, Vítězslav (referee) ; Špaňhel, Jakub (advisor)
This thesis focuses on the possibility of using current methods in the field of computer vision to re-identify graffiti tags. The work examines the possibility of using convolutional neural networks to re-identify graffiti tags, which are the most common type of graffiti. The work experimented with various models of convolutional neural networks, the most suitable of which was MobileNet using the triplet loss function, which managed to achieve a mAP of 36.02%.
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Recognition of Vehicle Class in Image
Čabala, Roman ; Kodym, Oldřich (referee) ; Špaňhel, Jakub (advisor)
The goal of this bachelor thesis is to recognize the type of vehicle from the image using neural networks. Vehicles are divided into 6 types, namely a car, a small van, a van, a mini truck, a truck and a bus. The data set was picked from videos that record the trajectory of the vehicles. Subsequently, an image annotation tool was built. The following architectures were used for network training: VGG16, ResNet50, Xception, InceptionResNet-v2. The result of the work is a comparison of architectures. All architectures were trained and achieved a result above 90%.
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