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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 157
Martirosov, Sergo , Bureš, Marek , Zítka, Tomáš
Cyber sickness in low‑immersive, semi‑immersive, and fully immersive virtual reality

It is known that virtual reality (VR) experience may cause cyber sickness. One aspect of VR is an immersion or otherwise sense of presence, the sense of feeling oneself in a virtual world. In this paper an experiment which was conducted in order to find the link ...

Tepljakov, Aleksei , Alagoz, Baris Baykant , Celaleddin, Yeroglu , Gonzalez, Emanuel A. , Hosseinnia, S. Hassan , Petlenkov, Eduard , Ates, Abdullah , Čech, Martin
Towards Industrialization of FOPID Controllers: A Survey on Milestones of Fractional-Order Control and Pathways for Future Developments

The interest in fractional-order (FO) control can be traced back to the late nineteenth century. The growing tendency towards using fractional-order proportional-integral-derivative (FOPID) control has been fueled mainly by the fact that these controllers have additional “tuning knobs” that allow ...

Čech, Martin , Beltman, Arend-Jan , Ozols, Kaspars
Pushing Mechatronic Applications to the Limits via Smart Motion Control

Modern machines strive to run at limit performance and dependability while their operational area and size are getting restricted. To achieve those objectives, often swift integration of custom-made subsystems is required, either actuators, sensors, electronic, or SW modules. Such a diverse ...

Duník, Jindřich , Straka, Ondřej , Matoušek, Jakub , Blasch, Erik
Copula-based convolution for fast point-mass prediction

This paper deals with the state estimation of the nonlinear stochastic dynamic discrete-in-time models by a numerical solution to the Bayesian recursive relations represented by the point-mass filter (PMF). In particular, emphasis is placed on the development of the fast convolution, which&#...

Řepová, Barbora , Zábrodský, Michal , Plzák, Jan , Kalfert, David , Matoušek, Jindřich , Betka, Jan
Text-to-speech synthesis as an alternative communication means after total laryngectomy

Total laryngectomy still plays an essential part in the treatment of laryngeal cancer and loss of voice is the most feared consequence of the surgery. Commonly used rehabilitation methods include esophageal voice, electrolarynx, and implantation of voice prosthesis. In this paper we foc...

Duník, Jindřich , Straka, Ondřej , Matoušek, Jakub , Brandner, Marek
Accurate Density-Weighted Convolution for Point-Mass Filter and Predictor

This paper deals with the Bayesian state estimation of nonlinear stochastic dynamic systems. The stress is laid on the numerical solution to the Chapman-Kolmogorov equation, which governs the prediction step of the point-mass filter and predictor, using the convolution. A novel density-weigh...

Hrúz, Marek , Kanis, Jakub , Krňoul, Zdeněk
Hand Pose Estimation in the Task of Egocentric Actions

In this article we tackle the problem of hand pose estimation when the hand is interacting with various objects from egocentric viewpoint. This entails a frequent occlusion of parts of the hand by the object and also self-occlusions of the hand. We use a Voxel-to-Voxel ap...

Přibil, Jiří , Přibilová, Anna , Matoušek, Jindřich
GMM-Based Evaluation of Synthetic Speech Quality Using 2D Classification in Pleasure-Arousal Scale

The paper focuses on the description of a system for the automatic evaluation of synthetic speech quality based on the Gaussian mixture model (GMM) classifier. The speech material originating from a real speaker is compared with synthesized material to determine similarities or differen...

Prüher, Jakub , Karvonen, Toni , Oates, Christopher James , Straka, Ondřej , Särkkä, Simo
Improved Calibration of Numerical Integration Error in Sigma-Point Filters

The sigma-point filters, such as the UKF, are popular alternatives to the ubiquitous EKF. The classical quadrature rules used in the sigma-point filters are motivated via polynomial approximation of the integrand, however in the applied context these assumptions cannot always be justified.&#...

Jiřík, Miroslav , Gruber, Ivan , Moulisová, Vladimíra , Schindler, Claudia , Červenková, Lenka , Pálek, Richard , Rosendorf, Jáchym , Arlt, Janine , Bolek, Lukáš , Dejmek, Jiří , Dahmen, Uta , Železný, Miloš , Liška, Václav
Semantic Segmentation of Intralobular and Extralobular Tissue from Liver Scaffold H&E Images

Decellularized tissue is an important source for biological tissue engineering. Evaluation of the quality of decellularized tissue is performed using scanned images of hematoxylin-eosin stained (H&E) tissue sections and is usually dependent on the observer. The first step in creating a t...

Rezek, Jiří , Kozák, Tomáš , Kumar, Nirmal , Haviar, Stanislav
Synergy of experiment and model for reactive HiPIMS: effect of discharge parameters on WOx composition and deposition rate

Reactive high-power impulse magnetron sputtering of tungsten oxide films using metallic tungsten target (72 mm in diameter) in argon-oxygen atmosphere (total pressure of 0.75 Pa) was carried out. The effect of various discharge parameters on the deposition rate and film oxygen concentration&...

Goubej, Martin , Vyhlídal, Tomáš , Schlegel, Miloš
Frequency weighted H2 optimization of multi-mode input shaper

An optimization-based design of a robust multi-mode input shaper is presented with an embedded weighting of the frequency response. By prefixing the delay length in the shaper, the optimization design task is formulated as a standard quadratic programming problem. The shaper robustness ...

Matoušek, Jindřich , Krňoul, Zdeněk , Campr, Michal , Zajíc, Zbyněk , Hanzlíček, Zdeněk , Grůber, Martin , Kocurová, Marie
Speech and web-based technology to enhance education for pupils with visual impairment

This paper describes a new web-based system specially adapted to the education of Czech pupils with visual impairment. The system integrates speech and language technologies with a web framework in lower secondary education, especially in mathematics and physics subjects. A new interface...

Duník, Jindřich , Biswas, Sanat K. , Dempster, Andrew G. , Pany, Thomas , Closas, Pau
State Estimation Methods in Navigation: Overview and Application

The goal of this article is to introduce selected methods of the state estimation, which are used in navigation applications. In particular, the article is focused on navigation applications, which belong into the area of expertise of the IEEE AESS Navigation Systems Panel 34 ...

Fehér, Marek , Straka, Ondřej , Šmídl, Václav
Model predictive control of electric drive system with L1-norm

This paper deals with the model predictive control of an electric drive system. Particularly, it focuses on the use of the L1-norm to penalize a speed deviation in a cost function of the predictive control criterion. The benefits and disadvantages of such penalization are disc...

Grůber, Martin , Matoušek, Jindřich , Hanzlíček, Zdeněk , Tihelka, Daniel
Dialogue Act-Based Expressive Speech Synthesis in Limited Domain for the Czech Language

This paper deals with expressive speech synthesis in a dialogue. Dialogue acts - discrete expressive categories - are used for expressivity description. The aim of the work is to create a procedure for development of expressive speech synthesis for a dialogue system in a limit...

Matoušek, Jakub , Duník, Jindřich , Straka, Ondřej
Density Difference Grid Design in a Point-Mass Filter

The paper deals with the Bayesian state estimation of nonlinear stochastic dynamic systems. The stress is laid on the point-mass filter, solving the Bayesian recursive relations for the state estimate conditional density computation using the deterministic grid-based numerical integration method. ...

Přibil, Jiří , Přibilová, Anna , Matoušek, Jindřich
Automatic statistical evaluation of quality of unit selection speech synthesis with different prosody manipulations

Quality of speech synthesis is a crucial issue in comparison of various text-to-speech (TTS) systems. We proposed a system for automatic evaluation of speech quality by statistical analysis of temporal features (time duration, phrasing, and time structuring of an analysed sentence) together&...

Tůmová, Olga , Tůma, František
Využití základních nástrojů řízení kvality v metrologii - část I.

Metrology and measurement processes use some basic quality management tools. For proper security of metrological confirmation, we must use quality management tools at different levels, as metrology, measuring processes and quality management are closely linked.

Tůmová, Olga , Tůma, František
Základní nástroje řízení kvality

Some basic quality management tools have been used since the beginning of factory production, additional tools have been developed so as to require continually improving quality management system. Currently, the production quality is important parameter for the management of the company and&...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 157