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The searching for artefacts in video sequences is realized to find objects which can cause false detection of cilia's movement. The motion in video sequence can be generated by cilia of respiratory epithelium as well as by some artefacts, e.g. red blood cells, air bubbles or dead cells of the respiratory epithelium. Removal of artefacts causing false detections of movement is an important task when the motion area is evaluated. This article deals with the procedures and methods which enable searching and removing such artefacts that may cause incorrect detection of moving area. The effectiveness of pattern matching for artefacts detections in four most typical videos is finally compared and evaluated in results paragraph.

Design of a control circuit consists in switching algorithm specification which is then implemented in the control system. Problem of specification of switching algorithm comes from the analysis of regulated system's behaviour in input switching mode. This paper presents the analysis of complete operation cycle for a regulated static system of second order.

The moving object can be described, based on frequency analysis and segmentation process. The moving objects are captured by highspeed video camera and image analysis is necessary for evaluation. This fact is very important in medical applications, when the moving objects (cilias) are needed to determine patient's diagnosis. The artifacts (moving detrit, bubles) must be removed from analysis result. Synthesis of these steps brings more accurate information about regions with useful information (regions with normal motion of objects).

The signal acquired by high speed video acquisition system has very amount of data. This paper describes signal conditioning and software, which is used for image acquiring through digital camera, intelligent illumination dimming hardware control and ROI statistic creation. All software parts are realized as virtual instruments.

Modern medical methods are characterized by influence of electronics to conventional and subjective diagnostics. In this article we propose integration of virtual instrumentation based on LabVIEW to respirology. Designed LabVIEW instruments can be applied each phase of implementation: sound acquisition, signal filtering and processing, representation and results visualization. Flexible LabVIEW instruments can replace many specialized and expensive tools and detectors.

The accuracy of slow motion cinematic analysis depends on frame rate of used camera. Specific case of cinematic analysis is in medical research focusing on microscopic objects (cilia of respiratory epithelium). Higher frame rate of camera (400 fps e.g.) causes that exposure time for camera sensor is too short, so it is necessary to use lightning source with higher optical (illuminating) efficiency and higher reliability. Hardware conditions are also limited by used light microscope. Paper focuses on design of LED illumination modules, their control, modes and supplying circuits for high speed imaging purposes.

Virtual instrumentation is defined as the combination of measurement and control hardware and application software with industry-standard computer technology to create user-defined instrumentation systems. Computer-aided laboratory exercises based on the LabVIEW system are efficiently used on the topic of Power electronic systems. The paper presents the application mentioned virtual instrument system in the education of boost type DC/DC converter in the continuous and discontinuous conduction mode. Its main application is in regulated dc power supplies and the regenerative braking of dc motors. Time-resolved measurements provided by NI ELVIS suite enable the students to explore and explain a behavior of circuits in the many different stages. A presented education form provides using different pedagogical tools and approaches. It is suitable for self-study purposes and in the field of e-learning platform education.