Le but de cette thèse est de construire une image couleur de haute qualité, contenant un faible niveau de bruit et d'aliasing, à partir d'une grande séquence (e.g. des centaines) d'images RAW prises avec un appareil photo grand public. C’est un problème complexe nécessitant d'effectuer à la volée du dématriçage, du débruitage et de la super-résolution. Les algorithmes existants produisent des images de haute qualité, mais le nombre d'images d'entrée est limité par des coûts de calcul et de mémoire importants. Dans cette thèse, nous proposons un algorithme de fusion d'images qui les traite séquentiellement de sorte que le coût mémoire ne dépend que de la taille de l'image de sortie. Après un pré-traitement, les images mosaïquées sont recalées en utilisant une méthode en deux étapes que nous introduisons. Ensuite, une image couleur est calculée par accumulation des données irrégulièrement échantillonnées en utilisant une régression à noyau classique. Enfin, le flou introduit est supprimé en appliquant l'inverse du filtre équivalent asymptotique correspondant (que nous introduisons). Nous évaluons la performance et la précision de chaque étape de notre algorithme sur des données synthétiques et réelles. Nous montrons que pour une grande séquence d'images, notre méthode augmente avec succès la résolution et le bruit résiduel diminue comme prévu. Nos résultats sont similaires à des méthodes plus lentes et plus gourmandes en mémoire. Comme la génération de données nécessite une méthode d'interpolation, nous étudions également les méthodes d'interpolation par polynôme trigonométrique et B-spline. Nous déduisons de cette étude de nouvelles méthodes d'interpolation affinées / The aim of this thesis is to build a high-quality color image, containing a low level of noise and aliasing, from a large sequence (e.g. hundreds or thousands) of RAW images taken with a consumer camera. This is a challenging issue requiring to perform on the fly demosaicking, denoising and super-resolution. Existing algorithms produce high-quality images but the number of input images is limited by severe computational and memory costs. In this thesis we propose an image fusion algorithm that processes the images sequentially so that the memory cost only depends on the size of the output image. After a preprocessing step, the mosaicked (or CFA) images are aligned in a common system of coordinates using a two-step registration method that we introduce. Then, a color image is computed by accumulation of the irregularly sampled data using classical kernel regression. Finally, the blur introduced is removed by applying the inverse of the corresponding asymptotic equivalent filter (that we introduce).We evaluate the performance and the accuracy of each step of our algorithm on synthetic and real data. We find that for a large sequence of RAW images, our method successfully performs super-resolution and the residual noise decreases as expected. We obtained results similar to those obtained by slower and memory greedy methods. As generating synthetic data requires an interpolation method, we also study in detail the trigonometric polynomial and B-spline interpolation methods. We derive from this study new fine-tuned interpolation methods

L’industrie du tourisme est reconnue comme partie intégrante de l’économie dans un environnement mondial soumis à des influences macro difficiles à gérer et à maîtriser. Le tourisme alternatif tel que le tourisme éthique, est considéré comme une solution durable pour une industrie d’une grande importance dans le monde et qui représente une possibilité de survie économique pour certains pays. L’objectif de cette recherche était d’évaluer la perception du rôle de l’éthique sur la formation de l’image d’une destination touristique par un public étudiant voyageur français, et son influence sur ses choix. La méthode choisie a été principalement une approche constructiviste et qualitative permettant de transférer la contribution des connaissances à plusieurs disciplines, et a engendré des implications managériales dans l’industrie du tourisme. Les résultats démontrent que, bien que l’image éthique d’une destination touristique est principalement influencée par les aspects sociaux et environnementaux, pèsent également des considérations de gestion qui découlent des implications économiques et politiques du tourisme et des activités touristiques. Ces considérations seront essentielles lors de l’élaboration de futurs produits touristiques pour le marché cible que sont les futurs visiteurs dans un environnement mondial de plus en plus accessible. / The tourism industry has proven to be an economic reliance in a global environment that is subject to macro influences that are difficult to manage and sustain. Alternative tourism, such as Ethical tourism, is seen to be a sustainable solution for an industry that holds much importance worldwide and for some countries, presents economic survival. The aim of this research was to evaluate how the French student travel market perceive the role of ethics on tourist destination image formation and its influence on holiday choice. This was primarily achieved by adopting a constructivist and qualitative approach that allowed for rich knowledge of contribution to be transferred to several academic disciplines and provided managerial implications for the tourism industry. Findings show that although an ethical tourist destination image is principally influenced by social and environmental impacts, there are also managerial considerations that derive from the economic and political implications that come from tourism and tourist activity. These considerations will be key when developing future tourism products for a target market who are the future visitors of an ever increasing accessible global environment.

Данная магистерская диссертация на тему «Формирование имиджа торговой компании» рассматривает актуальные вопросы формирования имиджа компании. В первой главе рассмотрены основные подходы к сущности дефиниции имидж и уточнено содержание дефиниции «имидж компании», заключающееся в создании впечатления у целевого сегмента о компании, формируемого в результате маркетинговых коммуникаций на основе конкурентного преимущества с целью создания устойчивого положительного отношения к компании. Рассмотрены основные имиджевые и маркетинговые инструменты формирования имиджа компании. Проанализированы существующие структуры имиджа компании и предложена авторская структурная модель имиджа компании, а так же ранжированы факторы, влияющие на формирование имиджа компании. Во второй главе был проведен анализ отрасли и рыночного положения компании ООО «Каменный город», диагностика внутреннего имиджа компании и исследование восприятия имиджа данной компании потребителями. И, на конец, в третьей главе, разработана модель формирования позитивного имиджа торговой компании, отражающая факторы, влияющие на него. Проведена апробация данной модели и показана ее эффективность. / This master thesis on "The trading company's image formation" considering the actual issues of the company's image formation. The first chapter considers the main approaches to the essence of the definition of the image, clarifying the content of the definition of "company image", to create the impression on the target segment of the company, formed as a result of marketing communications based on the competitive advantages to create a sustainable positive attitude towards the company. The main image and marketing tools formation of the company's image. We analyzed the existing structure of the company's image and structural model proposed by the author's image of the company, as well as ranked factors influencing the formation of the image of the company. In the second chapter, we analyzed the industry and the market position of the company "Каменный город". We diagnosis of internal image of the company, and the study of the perception of consumers of the company's image. Finally, in the third chapter, we considered the model of a positive image formation of the trading company, reflecting the factors influencing it. The approbation of the model had done and showed the efficiency of the model.

No description available.

Sport events are known to be strategically utilized to ‘sell’ the identity of its host destination. This since projections of and from the sport event can indirectly reflect elements symbolizing the destination, generating an image transfer process. And oppositely, how visitors project their lived experiences of a sport event on social media, may also have an impact on the destination image. But in research, the issue of branding outcomes from sport events has predominantly been studied from a managerial perspective and was mainly conducted 15 years ago. Since then, digital revolutions have entered the global arena and offered innovative ways to share and create the stories of our lives; causing a change in our perspectives of how we interpret experiences of the world. In the context of sport tourism, existing knowledge on the field would benefit to gain new insights following these new circumstances. And given these circumstances, there is not only a theoretical need but also an implicational need to understand visitors’ subjective experiences when attending a hallmark event and how such are being projected to the world through social media. Answers may provide new, strategical opportunities for practitioners to coordinate their branding activities to align with values that visitors places into their experiences of sport events – which in long-term lead to favorable, shared destination images. This study provides a glimpse of this perspective, by approaching a contemporary case study of the hallmark sport event Svenska Skidspelen 2022 in Falun, Sweden. Focus lies to examine visitors’ subjective experiences judged by their uploaded content on Instagram. A thematic analysis combined with online interviews of users bring light to prominent themes arising from the content; ranging from emotional to spatial experiences of the sport event and the destination of Falun. Moreover, new light is brought upon the previous studied effects of sport event leverages. Results reveal how ‘liminal’ sensations of experiencing the ‘folkfest’ contribute greatly to the overall experience and affect how visitors projects their sense of place on Instagram. This study is to the author’s note being the first one during the last decade seeing these results.

Cette thèse a pour but d'étudier l'utilisation d'un analyseur de front d'onde basé sur l'interférométrie à décalage quadri-latéral pour l'imagerie microscopique en transmission. Cette technique d'interférométrie, développée initialement par la société Phasics (Palaiseau) pour les marchés de la métrologie optique et de la caractérisation de faisceaux laser essentiellement, peut aussi permettre d'obtenir la cartographie d'un champ électromagnétique complexe par mesure de front d'onde. En l'utilisant sur un microscope en condition d'imagerie, nous avons obtenu des images de l'intensité et de la différence de chemin optique introduite par un échantillon semi-transparent, définissant ainsi une nouvelle technique de contraste de phase quantitatif. Il s'agit d'un travail codirigé entre l'Institut Fresnel et l'entreprise Phasics (convention CIFRE), mené en collaboration avec le Centre d'Immunologie de Marseille Luminy. Dans cette thèse, nous discutons dans un premier temps de l'utilisation de l'analyseur en tant que détecteur placé dans le plan image d'un microscope optique classique, puis nous considérons deux modèles pour la formation des images de différence de chemin optique. Le premier modèle, dit projectif dans l'espace objet, suppose une mesure directe par l'analyseur de la différence de chemin optique locale introduite par l'échantillon. Nous montrons que cette hypothèse est valable pour deux applications particulières : la détermination de la quantité de matière sèche au sein d'un échantillon biologique, et la cartographie de la distribution de température induite par échauffement de particules d'or dans le plan objet du microscope. Le deuxième modèle prend en compte les effets de diffraction simple par l'échantillon et de filtrage par le système d'imagerie, en considérant l'angle sous lequel l'échantillon est illuminé. / The aim of this thesis is the use of a quadriwave lateral shearing interferometer for transmission microscopic imaging. First developped for optical metrology and laser beam caracterisation by the Phasics company (Palaiseau), this interferometric technique gives complexe electromagnetic field cartography by wavefront sensing. Using a microscope in imaging conditions, we obtained intensity and optical path difference images introduced by a semi-transparent sample. Thereby, we defined a new quantitative phase contrast technique.This work is co-directed by the Fresnel Institute and the Phasics company (CIFRE convention), in collaboration with the Centre Immunologique de Marseille Luminy. In this thesis, first we discuss the wavefront sensor use as a sensor plugged on the classical optical microscope image plane ; then we consider two models for optical path difference image formation. The first one, named object space projection, supposes a direct measurement of the optical path difference introduced by a sample. We show that this hypothesis is valid for two particular applications : dry matter determination within a biological sample, and temperature distribution induced by gold nano-particule heating. Thesecond model takes into account the simple sample diffraction and the optical device filtering depending on the illumination angle. This second approach allows us to build a model for intensity and optical path difference image formation for any planewave illumination. So we studied the image formation from a spatially partial incoherent illumination to a complete incoherent illumination. We made electromagnetic field measurements with the wavefront sensor in this last case. Then we discuss semi-transparent tomographic reconstruction by measurements in different imaging planes.One chapter is dedicated to quantitative phase imaging in biology, in particular with mitotic index determination within a cell population.

Postgraduate studies final work of university consists of 60 pages, 27 figures, 3 tables, 68 references, 25 appendixs. It is written in Lithuanian language. The research object of this work is the image formation of the three branded meat shops in the Mažeikiai. The research aim- to create work of specialized meat shops reputation. Objectives analysis the sense of organization reputation and create run; to explain the ways of organization image; to examine the most important models of image making and to evaluate their advantages and disadvantages; to investigate the factors, that have influence in image formation; to present general theoretical model of mini shops image formation. In the process of research were used different methods. In the theoretical part of the thesis was used a comparative analysis and discussion on the concept of image. A questionnaire was used as a quantitative research method with meat product consumers in Mazeikiai. Receive results was generalized with statistical methods and graphs. Besides in the process of research was used the verbal documents analysis and a personal observation. The first chapter “Image essence of the organizations and peculiarity of it formation” is intended to review what is the reputation of organization and what are the principles of image found. The special attention was focused on the research models and methods of organization image. Up to now boffin of management found 7 models of organization reputation and... [to full text]

A main challenge in the field of special effects is to create special effects in real time in a way that the user can preview the effect before taking the actual picture or movie sequence. There are many techniques currently used to create computer-simulated special effects, however current techniques in computer graphics do not provide the option for the creation of real-time texture synthesis. Thus, while computer graphics is a powerful tool in the field of special effects, it is neither portable nor does it provide work in real-time capabilities. Real-time special effects may, however, be created optically. Such approach will provide not only real-time image processing at the speed of light but also a preview option allowing the user or the artist to preview the effect on various parts of the object in order to optimize the outcome. The work presented in this dissertation was inspired by the idea of optically created special effects, such as painterly effects, encoded in images captured by photographic or motion picture cameras. As part of the presented work, compact relay optics was assessed, developed, and a working prototype was built. It was concluded that even though compact relay optics can be achieved, further push for compactness and cost-effectiveness was impossible in the paradigm of bulk macro-optics systems. Thus, a paradigm for imaging with multi-aperture micro-optics was proposed and demonstrated for the first time, which constitutes one of the key contributions of this work. This new paradigm was further extended to the most general case of magnifying multi-aperture micro-optical systems. Such paradigm allows an extreme reduction in size of the imaging optics by a factor of about 10 and a reduction in weight by a factor of about 500. Furthermore, an experimental quantification of the feasibility of optically created special effects was completed, and consequently raytracing software was developed, which was later commercialized by SmARTLens(TM). While the art forms created via raytracing were powerful, they did not predict all effects acquired experimentally. Thus, finally, as key contribution of this work, the principles of scalar diffraction theory were applied to optical imaging of extended objects under quasi-monochromatic incoherent illumination in order to provide a path to more accurately model the proposed optical imaging process for special effects obtained in the hardware. The existing theoretical framework was generalized to non-paraxial in- and out-of-focus imaging and results were obtained to verify the generalized framework. In the generalized non-paraxial framework, even the most complex linear systems, without any assumptions for shift invariance, can be modeled and analyzed.

Magistro studijų baigiamasis darbas, 51 puslapis, 13 paveikslų, 10 lentelių, 47 literatūros šaltiniai, 2 priedai, lietuvių kalba. PRASMINIAI ŽODŽIAI: kaimo vietovė, vietovės įvaizdis, kaimo vietovės įvaizdis, vietovės įvaizdžio formavimas, vietovės įvaizdžio tipai, vietovės įvaizdžio formavimo vertinimo kriterijai. Tyrimo objektas – Lietuvos kaimo vietovių įvaizdis. Tyrimo tikslas – parengti moksliniais tyrimais pagrįstus Lietuvos kaimo vietovių įvaizdžio formavimo scenarijus. Tyrimo uždaviniai: 1. Išanalizuoti vietovės įvaizdžio formavimo teorinius dėsningumus. 2. Identifikuoti kaimo vietovės įvaizdį formuojančius veikėjus. 3. Atlikti kaimo vietovių įvaizdžio formavimo empirinį tyrimą. 4. Sudaryti Lietuvos kaimo vietovių įvaizdžio formavimo scenarijus. Tyrimo metodai: mokslinės literatūros, dokumentų analizė, kokybinis vertinimas, loginės analizės ir modeliavimo metodas, sintezė, palyginimas, indukcija, dedukcija, grafinis vaizdavimas. Tyrimo rezultatai: Pirmoje darbo dalyje atlikta vietovės įvaizdžio formavimo teorinių dėsningumų analizė ir nustatyta kad kaimo vietovės įvaizdis yra asmens vertinimų kaimo vietovės atžvilgiu ir yra komunikacinio proceso rezultatas. Kaimo vietovės įvaizdžio formavimas gali būti tiesioginis ir netiesioginis. Antroje darbo dalyje, remiantis empiriniu tyrimu ir mokslinės literatūros analize, nustatyti kaimo vietovės įvaizdžio formavimo vertinimo kriterijai ir balai, tinkami analizuoti kaimo vietovės įvaizdžio formavimo priemones, vykdyti... [toliau žr. visą tekstą] / Final work of University Postgraduate Studies, 51 pages, 13 figures, 10 tables, 47 references, 2 appendixes, in Lithuanian. KEY WORDS: countryside, image of terrain, image of countryside, formation of countryside image, types of terrain images, evaluation criteria of terrain image formation. Research object – image of Lithuanian countryside. Research aim – to prepare research-based image formation scenarios for Lithuanian countryside. Objectives: 1. To analyze the theoretical concepts of a terrain image formation; 2. To identify the actors of countryside image formation; 3. To conduct empirical analysis of countryside image formation; 4. To prepare scenarios of Lithuanian countryside image formation. Research methods: analysis and synthesis of literature and documents, qualitative evaluation, comparative analysis, logical analysis and modeling, synthesis, comparison, induction, deduction, graphical representation. Research results: The first part analyzes theoretical concepts of terrain image formation. Image of countryside is the result personal feelings and communication process. Image formation of countryside can be direct and indirect. The second part, on the basis of theoretical analysis and empirical research, establishes criteria and points of countryside image formation evaluation, analysis of countryside image formation tools and control. The third part, on the basis of theoretical analysis and empirical research, proposes four scenarios of Lithuanian... [to full text]

This master work consists of 80 pages. There are 44 tables, 24 figures and 1 affix in this work. It refers to 42 sources of literature. KEY WORDS: image, corporate image, communication, communication of organization, corporate image formation, corporate image evaluation, public relations, mass-media, identity of organization. The research object of this master thesis is the image of SC „Rokiskio suris“. Research aim: to create the image improvement strategy for SC „Rokiskio suris“. To reach the aim of the research the following objectives were raised: 1. To define a corporate image, its meaning and importance; 2. To base the necessity of formation and control of a corporate image 3. To analyze the most important aspects of „Rokiskio suris” work; 4. To ascertain the current situation of „Rokiskio suris” image; 5. To reveal the main image problems and weaknesses of „Rokiskio suris”. Research methods: 1. The analysis of scientific literature; 2. The analysis of work and statistics of „Rokiskio suris”; 3. The analysis of e-media sources; 4. Questionnaire interview; 5. The mathematical analysis of statistics using STATISTICA programme. Research hypothesis: The analysis of a corporate image in mass media and analysis of consumer’s opinion identify the same image problems and help to create one image improving strategy.