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SIP client with advanced features
Šacl, Vojtěch ; Číka, Petr (referee) ; Zukal, Martin (advisor)
The main objective of this thesis is the design and implementation of client software, which will be able to conduct text and video communication over an IP based network. The client application is supposed to run from a web page without the need of any additional software. The first part describes possible technologies suitable for the development of such an application. After that follows a brief description of the selected technology with emphasis on SIP protocol. The thesis also includes a brief description of characteristics of libraries that were considered for implementation into the application. The proposed solution consists of the description of the graphic environment and behavior of the application. The developed application is tested in different situations in the last part of the thesis.
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Videoconferencing application integrated in web browser
Mucha, Ján ; Atassi, Hicham (referee) ; Číka, Petr (advisor)
Bachelor thesis is focused on integrating videoconferencing application in the web browser. Implementation is realized using HTML5 and WebRTC tool, designed by web browsers makers such as Google and Firefox. To work with WebRTC is used API (Application Programming Interface) sipML5, which is implemented using JavaScript. This API contains package of functions and classes used to create videoconference application using simple commands. For signaling is used SIP protocol. Client application provides communication point-to-point, chat and multipoint communication. Multipoint communication was tested on the server application enabling the creation and management of videoconferencing rooms. For this was used software MCU Media Server and MediaMixer Server developed by Medooze company.
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Voice Dialog System in Web Browser for Demonstration Purposes
Vlček, Pavol ; Glembek, Ondřej (referee) ; Schwarz, Petr (advisor)
Cieľom práce je navrhnúť a vytvoriť hlasom ovládaného asistenta(voicebota), ktorý bude ľahko nasaditeľný na webovú stránku. Používateľom tak bude poskytnutý moderný spôsob, ako prirodzene komunikovať cez internetový prehliadač. Hlavný dôraz je kladený na synchronizáciu medzi hlasovým asistentom a obsahom na webovej stránke. Synchronizácia je dosiahnutá obojsmerným prenosom hlasu a textových príkazov medzi klientom a serverom. Na to je použitá technológia WebRTC v kombinácií so signalizačným protokolom SIP. Práca sa zaoberá oblasťami ako VoIP telefonovanie, počítačové siete a strojové učenie(proprietárne rečové technológie od Phonexie). Benefitom nasadenia hlasového asistenta je zníženie nákladov na odchádzajúce hovory pre klientov, odľahčenie agentov na call centrách pri odpovedaní na často kladené otázky a zvýšenie záujmu zákazníkov vďaka použitiu nových technológií.
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Visual Home Security System for iOS-Based Mobile Devices
Bajaník, Filip ; Szőke, Igor (referee) ; Herout, Adam (advisor)
The goal of this diploma thesis is to design and implement a mobile application for home security system on the iOS platform. The application introduces a complex solution allowing the transmission of the audio and video streams between the paired mobile devices using WebRTC. The final module represents universal solution for peer-to-peer audio and video communication. The thesis also deals with the field of computer vision, namely efficient motion detection algorithms. The module for motion detection implements ViBe algorithm using Metal. In case that the motion is detected the application notifies a user with a push notification. Synchronization of application data is implemented using Cloudkit and the data persistance using Realm library.
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Smart Digital Mirror for Individual Sports
Opichal, Tomáš ; Beran, Vítězslav (referee) ; Herout, Adam (advisor)
The aim of this diploma thesis is to create a practical solution for individual athletes in the form of a digital mirror, which can become an alternative to observing yourself in an ordinary mirror. The work contains and emphasizes the benefits of a digital mirror. Much of the work is devoted to the transfer of video between various devices for the ability to combine multiple videos on a single screen. The core of the solution is a mobile application for the Android platform, which works in various modes, the choice of which depends on how the application is used. The application was continuously tested with a group of users, resulting in iterative improvements to the application's features and the addition of new features. Furthermore, a web variant of the application was implemented, which increases the possibility of using the digital mirror across different platforms. The results of testing show that this whole solution can be used in the practical training of sports exercises and the application has the potential to connect with various sports.
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Application Development Framework for Peer-to-Peer Collaboration
Hrdina, Jan ; Očenášek, Pavel (referee) ; Rychlý, Marek (advisor)
The thesis deals with the design and implementation of the application framework for the creation of collaborative web editors that enable peer-to-peer collaboration in real time. The thesis summarizes existing approaches for data replication, from which M. Kleppmann's CRDT (conflict-free replicated data type) for JSON is chosen as the most suitable. Using the resulting framework, the created content can be safely shared in groups of peers, where each member can be assigned different permissions. Own communication protocols based on WebRTC, WebSocket and WebCrypto are designed and implemented for P2P connection establishment and subsequent communication. The framework allows to resolve conflicts and work independently without an Internet connection. For a consistent user experience, the library includes a set of user interface elements for managing friends, groups, and other common tasks. The framework is implemented using functional design patterns implemented in the ReasonML language. The functionality of the result is verified by creating an example application of the mind map editor.
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Video conference in HTML 5
Wiesner, David ; Zukal, Martin (referee) ; Číka, Petr (advisor)
This bachelor thesis follow proposal and realization of client-type web application, which uses SIP protocol for multimedia communication signalization. The communication is relayed via TCP protocol, more precisely via WebSocket. There are described basic properties of SIP and WebSocket protocols together with information about webRTC in first part of this thesis. The main part of thesis describes proposal and implementation of web application for AV and text communication. The briefing about progress reached during development is mentioned here as well as used libraries. Application was tested after finishing.
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Information System Assessment and Proposal of ICT Modification
Barič, Filip ; Koch, Miloš (referee) ; Klusák, Aleš (advisor)
This diploma thesis focuses on analysis, evaluation and improvement proposals for an information system used by a specific company from the insurance business. The company offers services to insurance companies, such as motor vehicle or property inspection and damage assessment. The first part describes the theory related to the main focus areas of this thesis. The second part contains an overview of the company, its analysis as well as evaluation of the information system used within the company. Finally, a set of proposals will be formulated, based on the outcomes of company and information system evaluation, aiming to simplify company processes and increase company’s productivity.
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WebRTC implementation in Open-source PBX's
Šalko, Jaroslav ; Papež, Nikola (referee) ; Šilhavý, Pavel (advisor)
The topic of this work is verification of support WebRTC communication through selected Open Source PBX. This work examine demands for WebRTC communications and describes configuration of branch centers for this type of communication. In the theoretical part is reader acquainted with the term WebRTC and with protocols related to this kind of communications. The purpose of this part of the work is to bring the reader closer look to the principles of functioning to ensuring support for this kind of communications. This is also connected with Description of basic interfaces of WebRTC applications. Further the reader finds the configuration of the selected Open Source PBX so that they can make audio-video call between WebRTC clients. This section is divided into three subchapters, each of it deals with the same problems for one of the aforementioned PBX. At the end of each chapter where the PBX PBX is configured step-by-step, test calls are made. These calls are captured by the Wireshark packet analyzer and serve as a demonstration of the WebRTC configuration functionality. At the end of this section, PBXs are compared against each other about WebRTC support. Practical part is dealing with laboratory task for students which are studying subject telecommunication and information systems. In the task students will be configuring WebRTC for PBX Asterisk. The task contains brief description of WebRTC and comments for all steps for configuration. All steps and facts are demonstrated by exemplary configuration files.
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