|
|
Design and implementation of VoIP protocols tester
Polášek, Jakub ; Číka, Petr (referee) ; Krajsa, Ondřej (advisor)
This paper deals with ways and means of testing SIP or IAX2 based equipment and protocols itselfs. I analyse terminology and methodology for benchmarking of proxy and registrar servers as it was described in documents RFC 7501 and RFC 7502 from organization IETF. In the practical part is described the tester realization programmed in PHP programming language witch will use described methodology. Aplication is available in web based interface.
|
|
|
Digital Image Watermarking
Šujan, Miroslav ; Říha, Kamil (referee) ; Číka, Petr (advisor)
The bachelor´s thesis deals with the problem of static digital watermarking in frequency domain. It is a process of adding secret information to the original data without any negative influence to them, while in the same time making sure that the identification and hidden watermark cannot be removed easily. The main aim of this thesis is to sum up the current techniques of watermarking, to carry out of two watermarking techniques and a test of resistance to attacks against them.
|
|
|
Telemetry Data Collection and Evaluation
Spurný, Jan ; Krajsa, Ondřej (referee) ; Číka, Petr (advisor)
This thesis describes design and creation of application which collects and values telemetry data. Thesis consist of design and implementation which describes whole system, server settings as well as approach how to consume any given data. Corner stone of this application is based on given data from telemetry station (sensors) and projecting them on the map background. Application consist of user interface and logic how to project any given data into the map. Graphics interface is created using HTML, JavaScript and CSS programming languages. Logic itself is programmed by using backend language PHP including Laravel Framework in combination with MySQL database. Result of this thesis is working implementation covering administration user interface, working cooperation of MQTT server and APIs. There are also implemented all necessary parts for enablement of user interface with cooperation with map background layer. Implementation creates two possible ways how to install package necessary to run this app on Ubuntu system.
|
|
|
Colour image histogram processing
Kučera, Ondřej ; Číka, Petr (referee) ; Říha, Kamil (advisor)
This bachelor thesis deals with processing of colour image histogram. To better undestanding of this problem it describes individual methods which edit colour image and its histogram. The thesis suggests a program implementation which allows processing of colour image and its histogram.
|
|
|
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.
|
|
|
Automatization of production technologies status monitoring
Molent, Michal ; Číka, Petr (referee) ; Krajsa, Ondřej (advisor)
The bachelor thesis focuses on with a description and design of automated surveillance over operation of production technologies from the initial collection and processing of information to the presentation of the results in the company´s intranet and their archiving. In the first part the proposal is described theoretically with possibilities of advanced solution of the given issues. The second part occupy of with the initial proposal for the solution. The third part is focused on the implementation of the prototypical implementation of an automated surveillance for application in an industrial environment. The Fourth part focus on testing all system, which is used in two factoring halls D and E.
|
|
|
SIP client in Java
Zukal, Martin ; Polívka, Michal (referee) ; Číka, Petr (advisor)
This bachelor’s thesis deals with a design of a client-based application with the utilization of the Session Initiation Protocol (SIP). The first part describes SIP with an emphasis on basic concepts. Then a brief description of the Java programming language which will be used for the implementation follows. The most extensive part is devoted to the description of a design and implementation of the application. Some techniques used during the development of the applicaton are being discussed in this part. The thesis is finished up with test scenarios verifying functionality of the application.
|
|
|
Design of desktop applications using the workflow library
Zeman, Kryštof ; Číka, Petr (referee) ; Lattenberg, Ivo (advisor)
The theoretical part of the thesis generally focuses on history and development of work- flow library, briefly describing most important features and options, which gives the reader basics needed to understand and orientation in the topic. In practical part of the thesis is detailly analized prime example, which is showing options, flexibility and advantages of connecting WF and WPF libraries. Primarily the thesis uses the most widely used model and shows how to pass information between workflow and WPF.
|
|
|
Administration of digital library
Havelka, Michal ; Balej, Jiří (referee) ; Číka, Petr (advisor)
The diploma thesis is focused on problematic of management of digital libraries, more precisely it’s focused on standard MPEG-7 ISO/IEC 15938. The thesis defines description of multimedia content, its basic rules and more deeply it describes work with static visual data. The practical part of the thesis is focused on creating standalone application in programming language Java. Its purpose is using XML files to manage, save, search and for general work with visual data and its parameters. An application is focused on Scalable Color and Dominant Color descriptors and propose alternative calculation procedure by variable parameters.
|
|
|
Android application for subjective evaluation of video-sequences
Štarha, Dominik ; Přinosil, Jiří (referee) ; Číka, Petr (advisor)
This semestral thesis is focused on a group of four actually used video codecs, namely H.264, HEVC, VP8, VP9. The main objective is to decide on the basis of an evaluation by volunteers which one is the best suitable for video compression. The first part of thesis contains theoretical aspect od the issue. This includes a discussion about the the tested codecs, Android operating system description, performance of the Android Studio software and last but not least, introduction to the assessment methods, used to evaluate video quality, to guarantee the objectivity of the results. The secont part of thesis deals with the implementation of the testing procedure and following evaluation of the data obtained by the assessment.
|
guest ::
