|
|
Comparison of VP9 and H.265 encoding standards
Fendrich, Vítězslav ; Boleček, Libor (referee) ; Polák, Ladislav (advisor)
This bachelor thesis deals with a comparison of the features of video coding standards VP9 and HEVC (H.265), developed to encoding videos mainly in high resolution. Theoretical part of this work is focused on the presentation and description of both VP9 and H.265 video codecs. Furthermore, objective and subjective metrics for video quality assessment are briefly described. Practical part of this work deals with an evaluation of the quality of video sequences, encoded by VP9 and H.265, with objective metrics and subjective metric. The description of the encoding process using VP9 and H.265 is also included. Proceeding of subjective tests in laboratory conditions is also described. Achieved results are clearly presented and discussed.
|
|
|
Remote switching of electrical appliances by the mobile phone
Hrabina, Martin ; Boleček, Libor (referee) ; Říčný, Václav (advisor)
The concern of this work is GSM remote control. First part is summary of requirements and possible solutions of given problem, discussing their complexity and tolerance against interference and unauthorized switching. Also, in the first part, there is selected one solution which is discussed in detail. Second part of the work consists of theoretical and circuitry design of GSM remote switch itself. End of this work is dedicated to the construction of whole device and checking its functionality.
|
|
|
Innovation of the software for design of the analog frequency filters
Boleček, Libor ; Slanina, Martin (referee) ; Petržela, Jiří (advisor)
The object of this bachelor‘s project is to create a PC programme for designing crossbar filters. The programme is realized with programming language C++ and Borland C++. The application uses the method of designing filters which is based on the normalized lowpass filter. This method uses the application of normalized approximation. The user interface of the programme has a wizard character. Input data are parameters of filters which are ordered by a user. The user orders the marginal frequency and the type of filter. The output is an electrical circuit with RLC parts values. The user has a choice if he/she wants to realize the circuit as a T or type circuit. The output may be printed or saved to a file.
|
|
|
The idnetification of the objects in the imege
Zavalina, Viktoriia ; Fliegel, Karel (referee) ; Boleček, Libor (advisor)
Master´s thesis deals with methods of objects detection in the image. It contains theoretical, practical and experimental parts. Theoretical part describes image representation, the preprocessing image methods, and methods of detection and identification of objects. The practical part contains a description of the created programs and algorithms which were used in the programs. Application was created in MATLAB. The application offers intuitive graphical user interface and three different methods for the detection and identification of objects in an image. The experimental part contains a test results for an implemented program.
|
|
|
Contactless meter of the water level
Pálka, Václav ; Boleček, Libor (referee) ; Říčný, Václav (advisor)
This paper describes the design and construction issues contactless meter water level in an enclosure (typically well) in distance measurement units of meters. The work includes theoretical analysis of possible ways to measure and describe the design, along with the design of individual functional blocks and verifying their function
|
|
|
Advanced picture segmentation for 3D view
Baletka, Tomáš ; Fliegel, Karel (referee) ; Boleček, Libor (advisor)
The thesis advanced image segmentation for 3D image deals with segmentation and anaglyph 3D views. In the theoretical part of the thesis describes the different approaches were used to image segmentation and closely related methods of image processing. In the following practical part was the implementation of selected methods and created user-friendly applications. The main objective of the program is to identify significant objects in the image. For the purpose of segmentation methods have been implemented based on k-means method, the method of contour and the growth of seeds. The program is created in Visual Studio 2008 and written in C + +. The input and output is the image in various formats (JPG, BMP, TIFF).
|
|
| |
|
|
Subjective tests of influence of the content of the scene on the spatial effect of 3D images and videos
Kaučiarik, Filip ; Kufa, Jan (referee) ; Boleček, Libor (advisor)
This thesis is concerning with study of video sequence parameters which influence the quality of picture during watching 3D frames and videos. It´s focused on comparing individual parameters of video sequences which are spatial and temporal information and depth map range and their influence on subjective testing and assessment of quality of experience by respondents . This thesis contains specification of testing sequence plan based on diversity of video sequence parameters and also a layout of subjective testing. An absolute parameter J was determined to achieve the maximum effect of objective parameters of sequency to 3D effect and comfort of the scene within subjective assessment.
|
|
|
Pseudo-colour imaging of the monochromatic pictures
Boleček, Libor ; Drastich, Aleš (referee) ; Říčný, Václav (advisor)
Diploma thesis displaying black and white image in false color includes a study of methods and creation of computer software. The main function of the program is to convert the monochrome image into the pseudo colors. This procedure is achieved increasing the diagnostic yield of image. The program may find application in medical field. The pseudocoloring is used several different methods for obtaining the best results, combined with modifications increasing brightness scale image contrast images. The program is created in the programming environment of Visual Studio 2008 and written in C # programming language. Entry program is monochrome images in various formats (JPEG, BMP). The output of the program can be printed in a false-color image or stored image again in several different formats.
|
|
|
Application of neural net in image processing
Nagyová, Lenka ; Svobodová,, Jitka (referee) ; Boleček, Libor (advisor)
This work focuses on the theory of artificial neural networks: the history, individual ways of learning and architecture of networks. It is also necessary to desribe the image processing blocks from scanning and image processing through segmentation to object recognition. The next part is focused on connecting the previous two parts, and therefore on the use of neural networks in image processing, specifically the identification of objects. In the practical part of the work is designed the user application for recognizing characters such as numbers, uppercase and lowercase letters.
|
guest ::
RSS feed.