Persistics is an advanced framework for processing wide-area aerial surveillance video. This framework handles the tasks of data collection, stitching of multi-sensor imagery, image registration and stabilization, motion tracking, and compression. As the technology for image sensor sizes improves, significant improvements in compression techniques are necessary in order to make full use of the data. Because the information of interest in such video is naturally moving, point-like targets, the applicability of foveated coding to the compression problem is an interesting question. Foveated coding, a compression technique that was designed to be perceptually optimal for the human visual system, has several components that are appropriate to the persistics compression problem. Foveation is applied in several different scenarios and methods to persistics data. As foveation can make good use of the persistics tracker data, a problem affecting tracker performance is explored as well. The multi-sensor stitching component of persistics can generate artifacts that reduce the effectiveness of the tracker. A method for characterizing, detecting, and correcting such artifacts is desirable. These three concepts are explored, and a method for detection is developed. Components of these algorithms were absorbed into a more general framework for artifact correction. / text

Under de senaste åren har svenska folkets medievanor ändrats. Det har skett ett digitalt skifte och det har blivit allt vanligare att titta på tv via webben istället för att ta del av den linjära tv-tablån. Syftet med denna undersökning är att ta reda på hur SVT anpassar sig till den nya mediesituationen. För att ta reda på detta har vi gjort en fallstudie över SVT:s tvoddar. En tvodd är en tv-sänd podcast och ett nytt format som SVT har utvecklat där en eller två programledare diskuterar ett utvalt ämne med varandra eller med inbjudna gäster. Med en kvalitativ riktad innehållsanalys på sju tvoddar har vi undersökt innehållet kopplat till teorier om kommersialisering, kvalitet och värdeskapande i medier. Utöver denna innehållsanalys har vi också gjort åtta kvalitativa intervjuer med programledare för tvoddarna och personal inom SVT:s organisation. Intervjuerna har fokuserat på drivkrafterna bakom utformandet av tvoddarna, samt vilken roll tvoddarna spelar i SVT:s satsning på framtiden. Resultatet av innehållsanalysen visar att tvoddarna innehåller inslag av personifiering och trivialisering. Produktionen av tvoddarna kännetecknas av spontanitet och en vilja att experimentera med teknik och format. Tvoddarna produceras i SVT:s minsta studio med robotstyrda kameror och endast en sändningsproducent som sköter all teknik. I förhållande till dessa förutsättningar håller tvoddarna en hög teknisk nivå, men ibland märks det av i klippning och kameraval att det är få personer bakom kameran. De främsta drivkrafterna vid utformandet av nya format för SVT är att utforska nya tekniska möjligheter, anpassa sig efter det nya medielandskapet, producera kostnadseffektiv tv och att distribuera programmen på digitala plattformar.

Šio projekto tikslas yra sukurti vektorinių grafinių failų konvertavimo sistemą. Sistema remiasi vektorinio grafinio formato apdorjimu: grafinių objektų faile nuskaitymu, atvaizdavimu, parametrų išskyrimu o taip pat konvertavimu į kitą vektorinį formatą. Tyrimo metu nagrinėjamos šiuo metu rinkoje esančios konvertavimo sistemos. Tyrinėjama atviro vektorinio grafinio formato struktūra, aiškinamasi kokiu būdu grafinių objektų parametrus galima pervesti į suprantamą ir koraguojamą formą. Paruošta išsami vartotojo dokumentacija, kurios pagalba sistemos naudojimas tampa nesudėtingas. Kadangi literatūros šiam tyrimui atlikti praktiškai nėra, internetas yra pagrindinis informacijos paieškos šaltinis. / The goal of the paper is to create a vectorial graphic files converting system. The system is based on the processing of a vectorial graphic format: reading and rendering graphic objects in a file, singling out the parameters, as well as converting a vectorial graphic format into another one. The research analyses the converting systems which exist in the modern market. The structure of an easily approachable vectorial graphic format is analysed, suggesting the ways which can be used to transfer the parameters of vectorial objects to a clear and corrective form. Sound user manual is prepared for the created vectorial graphic files converting system which helps to use it easily. The internet material is the basic source of the theoretical part of the paper because of the lack of scientific and methodological literature.

Testing is an indispensable mechanism for assuring software quality. One of the key issues in testing is to obtain a test data set that is able to effectively test an implementation. An adequate test data set consists of test cases that can expose faults in a software implementation. Mutation-based testing can be employed to obtain adequate test data sets, and numerous mutation operators have been proposed to date to measure the adequacy of test data sets that reveal functional faults. However, implementations that pass functionality tests are still vulnerable to malicious attacks. Despite the rigorous use of various existing testing techniques, many vulnerabilities are discovered after the deployment of software implementations, such as buffer overflows (BOF), SQL injections, and format string bugs (FSB). Successful exploitations of these vulnerabilities may result in severe consequences such as denial of services, application state corruptions, and information leakage. Many approaches have been proposed to detect these vulnerabilities. Unfortunately, very few approaches address the issue of testing implementations against vulnerabilities. Moreover, these approaches do not provide an indication whether a test data set is adequate for vulnerability testing or not. We believe that bringing the idea of traditional functional test adequacy to vulnerability testing can help address the issue of test adequacy. In this thesis, we apply the idea of mutation-based adequate testing to perform vulnerability testing of buffer overflows, SQL injections, and format string bugs. We propose mutation operators to force the generation of adequate test data sets for these vulnerabilities. The operators mutate source code to inject the vulnerabilities in the library function calls and unsafe implementation language elements. The mutants generated by the operators are killed by test cases that expose these vulnerabilities. We propose distinguishing or killing criteria for mutants that consider varying symptoms of exploitations. Three prototype tools are developed to automatically generate mutants and perform mutation analysis with input test cases and the effectiveness of the proposed operators is evaluated on several open source programs containing known vulnerabilities. The results indicate that the proposed operators are effective for testing the vulnerabilities, and the mutation-based vulnerability testing process ensures the quality of the applications against these vulnerabilities. / Thesis (Master, Computing) -- Queen's University, 2008-08-18 13:53:04.036

Auditory processing disorder (APD) is a label that describes a variable set of symptoms that share a common feature of difficulty listening to sounds in the absence of an actual audiological deficit (Moore, 2006). Clinical assessment of APD typically involves a test battery consisting of tests designed to examine the integrity of various auditory processes of the central auditory nervous system. Individuals with APD have difficulty recognising speech when parts of the signal are missing. One category of tests used to assess the extent to which this deficit is associated with reduced performance on the task is the low-pass filtered speech test. The University of Canterbury Adaptive Speech Test-Filtered Words (UCAST-FW) is a computer-based adaptive low-pass filtered speech test developed for the assessment of auditory processing skills in adults and children. Earlier studies with the UCAST-FW (McGaffin, 2007; Sincock, 2008; Heidtke, 2010; Abu-Hijleh, 2011) have produced encouraging results. However, there appear to be a number of confounding factors. The UCAST-FW is testing New Zealand listeners using an Australian recording of American test material. The purpose of the current study was to develop a new four-alternative forced choice test to replace the Northwestern University Children’s Perception of Speech (NU-CHIPS) stimuli the UCAST-FW currently utilises. The new test consists of 98 sets of four test items, (one target item and three foil alternatives) designed to be used in a four-alternative forced choice picture-pointing procedure. Phonemic analysis of the new word list and the NU-CHIPS word lists revealed a similar distribution of phonemes for target words of both word lists. The development of the new word list is described and the clinical applicability is explored.

This report consists of a compilation of a number of studies, which all of them have dealt with the effects of practice and instruction upon a person's test results. A literature review based on a dichotomy of practice and instruction under short-term and long-term conditions respectively, as well as on the denign of the investigations and certain characteristics of the individuals, resulted in general as well as in more specific statements on the arising of practice and instruction effects. In all the empirical investigations quantitative-numerical tests were used (KVR and NOG respectively), where one-of them (NOG) is a part of the so-called Swedish Scholastic Aptitude Test. The basic aim was to investigate if short-term practice (KTÖ) and short-term instruction (KTI) could have an effect upon the score of these tests. In this case practice was defined as taking a pre-test, and in the first three studies the instruction consisted of two phases: a first one concerning general testing strategies, and a second one concerning a specially adapted problem solving strategy. As a basis for the forming of this special problem solving strategy for NOG served a logically constructed and sequential problem solving strategy, which was formed as a direct influence on the individual via instruction in the first three studies, and as an indirect influence on the individual via the item format in the last three studies. From the achieved results can be mentioned that the literature paid attention to the importance of a person's knowledge of and familiarity with tests and examinations in a specific as well as in a more general sense. If a person has no or very little former experience of tests there is a certain probability that there will be a higher score due to KTÖ or KTI. This probability is reduced considerably if the person has some or relatively great former experience in this respect. This was also verified indirectly in the empirical studies, which were mainly carried out on individuals who could be classified as experienced in and familiar with tests. No practice or instruction effects could be found either in the first three studies or indirectly in the last three studies. In these ones a specially constructed item format had been used, which had been formed according to the sequential problem solving strategy. With the intention to obtain an interpretation frame for practice and instruction effects on tests, the basis in this report has been a theoretically constructed model, whereby the achieved effects are first of all related to the individual variable former experience, and secondly to whether a test consists of correctly or incorrectly constructed items. / digitalisering@umu

Traditionally large format displays have been achieved using software. A new technique of using hardware based anywhere pixel routing is explored in this thesis. Information stored in a Look Up Table (LUT) in the hardware can be used to tile two image streams to produce a seamless image display. This thesis develops a 1 input-image 1 output-image system that implements arbitrary image warping on the image, based a LUT stored in memory. The developed system control mechanism is first validated using simulation results. It is next validated via implementation to a Field Programmable Gate Array (FPGA) based hardware prototype and appropriate experimental testing. It was validated by changing the contents of the LUT and observing that the resulting changes on the pixel mapping were always correct.

Les "déchets" organiques sont utilisés pour fertiliser les terres agricoles depuis l'avènement de l'agriculture. Longtemps considérés comme des ressources, les résidus organiques urbains ne deviennent des déchets qu'au début du 20ème siècle. Ils sont alors délaissés par le monde agricole et entassés dans des décharges. Aujourd'hui leur valorisation s'impose comme un des axes majeurs des politiques de gestion des déchets. En parallèle, l'agriculture cherche les voies d'une augmentation de la production qui soit respectueuse de l'environnement. A la croisée de ces deux problématiques, le programme de recherche ANR "ISARD", qui constitue à la fois le cadre et l'objet de cette étude, vise à une "Intensification écologique des Systèmes Agricoles par le Recyclage des Déchets". Différents "produits résiduaires organiques" sont ainsi appelés à devenir de véritables intrants agricoles, sûrs et efficaces, participant à l'intensification de l'agriculture. Leur intégration dans des dispositifs industriels de normalisation, leur conférant le statut de produit commercial, apparaît comme le moyen le plus adapté pour répondre à ces attentes. En suivant les enseignements des sociologies pragmatistes prenant en compte le rôle des objets dans l'action, c'est à la description des différentes formes sociotechniques de la valorisation agricole (ressource, déchet, produit) que se consacre ce travail. La prise en compte d'une pluralité de formes de valorisation permet d'insister sur les déplacements induits par une logique "produit" et les reconfigurations qu'elle provoque, notamment par rapport à la pluralité des mondes agricoles.

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Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2016-12-16T13:26:38Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ludmila_pires_miranda.pdf: 952225 bytes, checksum: 480197cc21b0be88145b5cb167181c71 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2016-12-19T16:46:22Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ludmila_pires_miranda.pdf: 952225 bytes, checksum: 480197cc21b0be88145b5cb167181c71 (MD5) / Made available in DSpace on 2016-12-19T16:46:22Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ludmila_pires_miranda.pdf: 952225 bytes, checksum: 480197cc21b0be88145b5cb167181c71 (MD5) Previous issue date: 2016 / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG) / O estudo analisou a influ?ncia de alocar parcelas em diferentes pontos do talh?o com a finalidade de um invent?rio pr?-corte, utilizando dois arranjos de intensidade amostral e tamanho de parcela, diferentes m?todos de amostragem (Casual Simples ? ACS ou Sistem?tica ? AS), forma de parcela (retangular ou circular) e localiza??o da parcela no talh?o (borda, borda e centro e apenas no centro). Foi realizado um censo no talh?o, onde foram mensuradas todas as circunfer?ncias ? 1,30 metros de altura. A estimativa da altura foi obtida por meio de modelo hipsom?trico. O ajuste do modelo foi feito com duas bases de dados para detectar a influ?ncia do efeito de borda na altura das ?rvores: a primeira composta por dados provenientes da ?ltima medi??o do invent?rio florestal cont?nuo (IFC) realizado no talh?o; a segunda proveniente de cinquenta ?rvores localizadas na borda do talh?o. Com as equa??es ajustadas, utilizou-se o teste de identidade de modelo para verificar o efeito de borda na altura. Para definir o efeito de borda sobre o di?metro ajustou-se a fun??o Weibull de duas formas: 1) para cada uma das 10 primeiras linhas de borda do talh?o; e 2) fez-se o ajuste das linhas de forma acumulativa, come?ando pela linha 1 at? a d?cima linha. Conhecendo-se as estimativas dos par?metros, as distribui??es diam?tricas foram estimadas, tomando como base a frequ?ncia observada da primeira linha de borda. Para verificar se a distribui??o diam?trica estimada variava conforme adentrava no talh?o utilizou-se o teste de Kolmogorov-Smirnov, a 95% de probabilidade. Para o ajuste dos modelos volum?tricos foram usados dados de cubagem de ?rvores-amostra localizadas no centro do talh?o. Combinando a localiza??o da parcela, m?todo de amostragem, formato da parcela e arranjo de intensidade amostral e tamanho da parcela, foram simulados 28 cen?rios de amostragem. A compara??o entre os procedimentos foi utilizando a precis?o e exatid?o. O resultado do teste de identidade de modelo indicou que h? influ?ncia da borda sobre a altura das ?rvores. Os testes de Kolmogorov-Smirnov demonstraram n?o haver diferen?a diam?trica entre as 10 primeiras linhas de borda do talh?o. O modelo volum?trico de Schumacher e Hall foi o que resultou nas melhores estimativas. Nos procedimentos de amostragem simulados, a ACS foi mais precisa e eficiente para um arranjo com intensidade amostral maior e parcelas de tamanho menores, j? a AS foi melhor com intensidade amostral menor e parcelas maiores; quanto ao formato, tanto circular, quanto retangular obtiveram bons resultados. Em rela??o ? localiza??o das parcelas no talh?o, os resultados foram mais exatos e precisos quando as parcelas foram alocadas no centro do talh?o, seguidos das parcelas alocadas na borda e centro e por fim aquelas alocadas na borda do talh?o. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / This study examined the influence of allocating plots at different points of the stand, using two arrays of sampling intensity and plot size, different methods of sampling (Simple Casual ? ACS or Systematic Sampling ? AS), plot format (rectangular or circular) and plot location in the compartment (border, border and center, and only in the center). We performed a census in the stand, where all circumferences at 1.3 meters above the ground were measured. Height estimation was through the Hypsometric model. The model fitting was conducted with two databases to detect the influence of the border effect at different tree heights: the first model fitting consisted of data from the last measurement of IFC (Continuous Forest Inventory ? IFC) conducted in the stand; the second one consisted of fifty trees located on the border of the stand. For the adjusted model, the researcher used a model identity test to determine the effect of the border on the height. To define the effect of the border on the diameter, the Weibull function was fitted in two ways: 1) for each one of the first 10 borders in the stand; and 2) for the adjustment of the lines cumulatively, beginning from the first line to the tenth line. Knowing the parameters, we estimated diameter distributions, based on the observed frequency of the first border. To verify if the estimated diameter distribution varied according to the plot, we used the Kolmogorov-Smirnov test at 95% probability. For the fitting of the volumetric models, we used cubing data of trees located in the center of the stand. So, combining the location of the plot, the sampling method, the inventory type and the plot format, we simulated 28 sampling scenarios. Comparison between procedures was through precision and accuracy. The result of the model identity test indicated that the border influences tree heights. The Kolmogorov- Smirnov tests showed no diametric difference between the first 10 border lines of the stand. The Schumacher and Hall volumetric model was the one that got the best estimates. In the simulated sampling procedures, ACS was more precise and efficient or an arrangement with greater sampling intensity and smaller size plots, while AS was better with lower sampling intensity and larger plots; as the format, either circular, or rectangular achieved good results. Regarding the location of the plots in the stand, the results were more accurate and precise when the plots were allocated in the center of the stand, followed by plots allocated on the border and center and finally those allocated in the stand border.