Tato práce popisuje systém pro sledování obrazovky počítače v reálném čase a určení pozice uživatelova pohledu na tuto obrazovku s využitím dat z eye-trackovacích brýlí a Uniform Marker Fields. Vytvořený systém lokalizuje obrazovku počítače ve snímcích z kamery umístěné na eye-trackeru snímající scénu před uživatelem. V této scéně je detekován marker zobrazený na monitoru počítače. Po jeho úspěšné detekci je marker skryt a ke sledování pozice obrazovky jsou dále využívány významné body detekované ve snímku z kamery ležící na obrazovce, případně z celého snímku. Pokud sledování významných bodů selže, marker je znovu zobrazen a systém je znovu inicializován pomocí detekovaného markeru. Aby byl marker pro uživatele co nejméně nápadný a obtěžující, jsou využity data z eye-trackeru k tomu, aby byl marker zobrazen co nejdále od oblasti uživatelova zájmu. Pro vyhodnocení výkonu a přesnosti vytvořeného systému a rušivosti markeru pro uživatele bylo provedeno několik experimentů a testování s uživateli.

The goal of this diploma thesis is realization of program support for project definition with usage of logical frame method. First chapters of this thesis summarize the theoretical basis necessary for application design and its realization. Next parts deal with system design and implementation. The conclusion of thesis discusses program usage in real environment and further upgrades possibility.

This master's thesis is about the most known methods for face recognition. There are described their advantages and disadvantages. This work is specialized at holistic methods for face recognition, which are working with 2D pictures of people. I implemented the automatic system for face recognition according to digital picture of face. There was, in this system, implemented these methods: KNN (K nearest neighbour), PCA (Principal component analysis) and LDP (Linear doscriminant projection). There was done some tests to compare implemented methods. The tests was done on the pictures from dataset FERET. In the conclusion of this text are considered implemented approaches and is marked the best method for face recognition from implemented.

The document is discussing the issue of the computer vision with ability to character recignition in the image. Wavelet transform is used for preprocessing the image. Pixel energy feature is firstly used for searchich candidate text pixels. Density region growing method is then used to collect candidate pixels to the separate regions, which will be candidate text regions. Several of the features are calculated over the regions and the SVM classifier is used to derive, if the region is really a text region or not.

Emotions are an essential part of development. There is evidence that young children understand and express emotions through facial expressions. Correct identification and recognition of facial expressions is important to facilitate communication and social interaction. Emotions are represented in a wide variety of symbol sets and systems in Alternative and Augmentative Communication (AAC) to enable a person with little or no functional speech to express emotion. These symbols consist of a facial expression with facial features to distinguish between emotions. In spite of the importance of expressing and understanding emotions to facilitate communication, there is limited research on young children’s ability to recognize emotions represented by graphic symbols. The purpose of this study was to investigate the ability of typically developing fouryearold children to recognize basic emotions as represented by graphic symbols. In order to determine their ability to recognize emotions on graphic symbols, their ability to understand emotions had to be determined. Participants were then required to recognize four basic emotions (happy, sad, afraid, angry) represented by various graphic symbols, taken from PCS (Johnson, 1981), PICSYMS (Carlson, 1985) and Makaton (Grove&Walker, 1990). The purpose was to determine which graphic symbol the children recognized as representation of an emotion. Results showed that the emotion of happy was easier to recognize, which might be because it was the only emotion in the pleasure dimension of emotions. Sad, afraid and angry were more difficult to recognize which might be because they fall in the displeasure dimension. It is also evident from the findings that the facial features in the graphic symbol play an important part in conveying a specific emotion. The results that were obtained are discussed in relation to previous findings. Finally, recommendations for future use are made. / Dissertation (MA (Augumentative and Alternative Communication))--University of Pretoria, 2008. / Centre for Augmentative and Alternative Communication (CAAC) / MA / unrestricted

Globalisierung, gestiegener Konkurrenzdruck und ein effektiver Einsatz von Ressourcen zwingen die Unternehmen – nicht nur in der Automobilindustrie – zu einer permanenten Effizienzsteigerung im Entwicklungsprozess. Um schnell das optimale Design zu finden, kommen CAD- und CAE- Programme in einer frühen Entwicklungsphase des Bauteils zum Einsatz. Durch eine virtuelle Überprüfung und Verbesserung z.B. von Funktion, Gewicht und Lebensdauer können kostenintensive Prototypen und Versuche erheblich minimiert werden. In der Automobilindustrie rücken zudem akustische Eigenschaften immer mehr in den Fokus. Ein geringes Innenraumgeräusch oder der spezielle »Sound« eines Fahrzeuges sind klassenspezifische Qualitätsmerkmale, welche die Kaufentscheidung des Kunden stark beeinflussen (Zeller 2009). Bei der Konstruktion von Karosseriebauteilen muss dabei besonderes Augenmerk auf die Vermeidung von Resonanzeffekten gelegt werden. Moderne CAD-Programme – wie CATIA V5® der Fairma Dassault – bieten bereits die Möglichkeit im CAD-Workflow Bauteileigenschaften zu ermitteln. Somit verschmelzen zunehmend die Grenzen zwischen Berechnung und Konstruktion. Allerdings setzt jeder Teilbereich Erfahrung und Expertenwissen voraus, wodurch immer noch eine entsprechende Kaskadierung der Aufgaben im Entwicklungsprozess zu finden ist. Diese wird nachstehend erläutert.

Recent research within the Music Information Retrieval (MIR) field has shown the relevance of perceptual features for musical signals. The idea is to identify a small set of features that are natural descriptions from a perceptual perspective. The notion of perceptual features is based on the ecological approach to music, that is, focussing on sound events rather than spectral information. Furthermore, MIR research has had an overemphasis on Western music and listeners. This leads to the question of whether the concept of perceptual features is culturally independent or not. This was investigated by having listeners of two distinct cultural backgrounds (Swedish and Chinese) rating a set of eight perceptual features: dissonance, speed, rhythmic complexity, rhythmic clarity, articulation, harmonic complexity, modality and pitch. A culturally specific dataset consisting of Korean pop songs was used to provide the stimuli. This was a subset of a larger set of songs from a previous study selected based on genre and mood annotations to create a diverse dataset. The listener ratings were evaluated by a variety of statistical measures, including cross-correlation and ANOVA. It was found that there was a small but significant difference in the ratings of the perceptual features speed and rhythmic complexity between the two cultural groups.

This thesis was aimed towards translated Japanese web novels to findout what kind of features they have and if the translated text kept thefeatures of the original novel. Simultaneously, the translationtechniques utilized in the translated novel were also examined. To findout the answer, two case studies were conducted and the web novelswere chosen at random with some parameters set. An interview wasconducted with translators of web novels to help reinforce or clear updoubts surrounding the results of the case study. The thesis also brieflydescribes the overall industry surrounding web novels. The randomlychosen translated novels did have most of the features of the original.Though some aspects were lost in translation. The translationtechniques utilised were also overwhelmingly literal translation. Whythat is has several possible answers among which the languageproficiency of the translator or no formal training in translation.

<p>Highly loaded aerodynamic devices for propulsion and power generation are emerging to increase power output in a more compact machine are emerging. These devices can experience increased losses due to separation, as in the low-pressure turbine, which arise due to the operation at conditions that increases the adverse pressure gradients ore decrease the Reynolds number of the flow through the device. Therefore, flow control strategies become appealing to reduce losses at these conditions. This work aims to validate flow injection as an effective flow control strategy in the transonic regime.</p> <p>A test facility which was used to study boundary layer separation in a quasi-2d test article was modified to include flow injection and conditions were modified so that the facility was operated in the transonic regime. Valves were chosen which could achieve a wide range of excitation frequencies and the flow control ports were designed to accommodate their nominal flow rate. A preliminary test matrix was built while considering the limitations of the test facility.</p> <p>A numerical study was conducted to identify flow structures of interest and determine a preliminary understanding of the test article. The flow control was then added to the numerical study to guide the experimental set points for injected flow. The response of the flow to continuous slot blowing was characterized, and a 3D simulation with discrete injection ports was done to ensure the set-points determined from the 2D study were viable for discrete injection.</p> <p>Blow-down experiments were then conducted to study the behavior of bulk separation in a transonic regime for a quasi-2D geometry. Once behavior of the separation was understood, steady injection and then pulsated injection were applied in attempts to mitigate the separation. Steady injection was utilized to find the required pressure of injection relative to the total pressure at the inlet of the test article, while the pulsated injection served to identify a frequency at which the time averaged mitigation of separation was greatest.</p> <p>The experiments show that both steady and pulsated flow injection are viable techniques in flow control. It is also shown that pulsation does not allow for a lower pressure injection, but instead allows for the same effect with a lower mass flow requirement. Two-dimensional computational simulations are shown to be effective in determining injection frequencies but not the extent of separation or required injection pressures.</p>

Buerger disease is characterized by progressive distal extremity ischemia in persons with recent tobacco consumption. Typically, affected persons are young men. There have been case reports of Buerger disease in older men. Almost all of the reported cases were characterized with progressive, severe disease requiring amputation. We report a case of an older man with features of Buerger disease without significant proximal progression despite active smoking. Arteriographic and pathologic studies confirmed the diagnosis.