|
|
Mobile Video Manual with Automatic Object Recognition
Nedbálek, Stanislav ; Maršík, Lukáš (referee) ; Španěl, Michal (advisor)
This thesis deals with potential of us computer vision and augmented reality on mobile platform - OS Android. The goal of this thesis is to demonstrate practical potential of mentioned technologies on nowdays real situations. This thesis aims to design and implementation of mobile application, which is able to show video manual for automatic detected object. The created application has been tested on group of users, which approved useability and intuitivness of this application.
|
|
|
FPGA Digital Circuit for up to 400 Gbps Transfers over Ethernet
Kondys, D. ; Smékal, D.
Network cards with a hardware acceleration feature are a popular solution for meeting the ever-increasing demands for throughput in high-speed networks. Utilizing the FPGA (Field Programmable Gate Array) chips as the hardware acceleration elements, this paper presents a generic and highly modular digital circuit for FPGA that manages the transfer of data in form of Ethernet frames at rates reaching up to 400 Gbps. To achieve this, the proposed digital circuit takes advantage of the Ethernet intellectual property (IP) blocks in high-end FPGAs from Intel. By first implementing and fine-tuning it for data rates up to 100 Gbps, the next step is expanding it to reach data rates up to 400 Gbps. The created digital circuit will then be used in the FPGA design for the XpressSX AGI-FH400G network card (among others) created by companies CESNET a.l.e and REFLEX CES. Even though the target data rate is 400 Gbps, this paper focuses on the first step, which is the utilization of the Intel Ethernet hard IP blocks to reach 100 Gbps.
|
|
|
Anonymous certificates for user authentication
Hlinka, Jan ; Malina, Lukáš (referee) ; Dzurenda, Petr (advisor)
Topic of this thesis is privacy protection when using anonymous certificate authentication. Today’s most common case of oversharing private data is proving Covid vaccination or Covid test results. This thesis describes and implements system that is using anonymous certficates. The system solves mentioned issues of current CovidPass authentication methods. The implementation is done on the Android platform in case of the user application and verifier application is run on Raspberry PI, which works as an access terminal.
|
|
|
Cryptographic algorithms on FPGA
Broda, Jan ; Jedlička, Petr (referee) ; Hajný, Jan (advisor)
The master thesis is focused on developing a demonstrator which is able to transmit data not only between operating system and network FPGA card with a UltraScale+ chip but also between two network FPGA cards. The theoretical part of the master thesis describes FPGA, developing on FPGA, programming languges that are used and develoment enviroment Vivado Design Suite. The demonstrator consists of two applications developed in C language which are used for communication between operating system and the network FPGA card and two components developed in VHDL langague which are used for communication throught a network module on the network FPGA card. The demonstrator allows inserting cryptographic algorithm which would work with transmitted data. For developing on the network FPGA card was used a Network Development Kit provided by a Liberouter team from CESNET association.
|
|
|
Implementation of Digital Circuit for High-Speed Network Communication in FPGA
Kondys, Daniel ; Cíbik, Peter (referee) ; Smékal, David (advisor)
Vysokorychlostní síťové karty často obsahují prvky pro hardwarovou akceleraci, která jim umožní efektivně zpracovávat data i při velmi vysokých rychlostech. Tato práce se zabývá tvorbou digitálního obvodu pro FPGA, který bude přenášet Ethernetové rámce rychlostí až 400 Gb/s. K tomu využívá bloky duševního vlastnictví pro Ethernet, které jsou součástí moderních FPGA čipů od firmy Intel. Jedná se o FPGA Stratix 10, které obsahuje bloky duševního vlastnictví typu E-tile, a Agilex, které obsahuje bloky duševního vlastnictví typu F-tile. Před vlastním návrhem se práce zabývá teoretickým rozborem standardu Ethernet a činnostmi jednotlivých podvrstev, popisuje vybrané FPGA čipy a zabývá se i NDK platformou, do níž bude vytvořený obvod zapojen. Praktická část spočívá v konfiguraci daných duševních bloků pro Ethernet a jejich integrací do vytvářeného obvodu. Nakonec jsou popsány metody pro ověření funkčnosti vytvořeného obvodu. Ty zahrnují verifikaci a testy na platformách s danými FPGA čipy. Výsledky ukazují, že vytvořený obvod je funkční a dosahuje rychlosti i 400 Gb/s. Jeho využití spočívá zejména v poskytnutí komunikace přes Ethernet pro digitální obvod, který bude dodáván jako součást firmwaru pro síťovou kartu XpressSX AGI-FH400G vyvinutou sdružením CESNET z.s.p.o a společností REFLEX CES.
|
|
|
Attribute Authentication on Android Platform
Strakoš, Jan ; Ricci, Sara (referee) ; Malina, Lukáš (advisor)
This master’s thesis focuses on implementation of ABC (Anonymous attribute-based credential) pilot system on the Android platform. The support for attribute authentication on the Android platform is very weak in terms of the number of implementations and needs a special attention. The theoretical part of the thesis describes the cryptographic support on the Android platform, the use of the Android Native Development Kit (NDK) and the Host-Card Emulation (HCE) service. The theoretical part of the thesis also includes a description of attribute authentication schemes, including a pilot RKVAC system. The practical part describes the implementation of the RKVAC system on the Android platform along with the implementation of a custom cryptographic kernel based on the native MCL cryptographic library. The practical part of this thesis describes implementation proces of RKVAC system on Android plaform, that uses native cryptographic library MCL. The final part shows the results of time, memory and computation difficulty of developed applications.
|
|
|
I/O Virtualization in Networking
Perešíni, Martin ; Kekely, Lukáš (referee) ; Martínek, Tomáš (advisor)
Existuje veľa rôznych dôvodov pre spoločnosti a organizácie, prečo by mali investovať do virtualizácie. Asi najväčší dôvod je finančná motivácia, pretože nasadenie virtualizácie môže ušetriť nemálo peňazí. Táto práca sa zaoberá práve problémom virtualizácie I/O operácií v sieťovom prostredí. Cieľom práce je tvorba softvérových ovládačov pre I/O virtualizáciu, ktoré by mohli pracovať s hardvérovo akcelerovanými sieťovými kartami. Hlavným prínosom ovládačov by mala byť použiteľnosť a čo najmenšia strata prenosového výkonu vo virtualizovanom prostredí. Pred popisom finálnych detailov ovládačov je však potrebné uviesť potrebné teoretické základy. Teoretická časť sa zaoberá súčasnými trendami vo virtualizácii I/O, technológiami ako sú virtio, vhost, SR-IOV, VFIO a mdev. V praktickej časti sú navrhuté dva spôsoby riešenia problému. Prvým je použitie technológie virtio (emulácia softvéru). Druhé je založené na technológii VFIO-mdev (hybridná paravirtualizácia). Pokiaľ sa jedná o výkon a konfigurovateľnosť zariadení, oba prístupy majú rôzne benefity. Tieto riešenia majú aj svoje nevýhody, ako je zložitosť riešenia a náročnosť integrácie do systému. Požadované ciele boli úspešne dosiahnuté vo forme prototypu ovládača nfb_mdev.
|
|
|
Object Detection Algorithms on Android Platform
Dlápal, Vojtěch ; Musil, Martin (referee) ; Musil, Petr (advisor)
Aim of this thesis is to analyze possibilities of object detection on Android platform, design demonstrative application, test it and evaluate results. Android platform, computer vision library OpenCV and object detection theory are being introduced. Application for comparison of face detection from OpenCV, Android API and custom detector using classifier was designed and implemented. Application was tested and the results were evaluated.
|
|
|
Network traffic analysis on FPGA network card
Crháková, Marie ; Lieskovan, Tomáš (referee) ; Smékal, David (advisor)
Bachelor thesis contains description of ISO/OSI and TCP/IP, then is focused on packet headers of the protocols IP, TCP and UDP. After that is analysed the FPGA from the company Xilinx with network interface card from Netcope Technologies and their functions defined by Firmware Developer´s Manual. Finally the studied informations was used for create the program for counting packets, that was simulated and synthesized for field programmable gate array through Vivado.
|
|
|
Implementation of Simple Speech Recognizer in Android
Flajšingr, Petr ; Herout, Adam (referee) ; Szőke, Igor (advisor)
The subject of this thesis is an implementation and optimization of speech recognizer for operating system Android. This work covers implementation of recording of an audio signal and the subsequent feature extraction using Mel filter banks and neural network. It also contains information about implementation of dynamic decoder. The work focuses on implementation in low-level tools such as Android NDK and Renderscript and evaluates the success rate of the recognizer and its memory and time requirements.
|
guest ::
