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Dissertations / Theses on the topic 'Objective and subjective quality'

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Published: 22 April 2023

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1

Torkhani, Fakhri. "Analyse subjective et évaluation objective de la qualité perceptuelle des maillages 3D." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT051/document.

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Les maillages 3D polygonaux sont largement utilisés dans diverses applications telles que le divertissement numérique, la conception assistée par ordinateur et l'imagerie médicale. Un maillage peut être soumis à différents types d'opérations comme la compression, le tatouage ou la simplification qui introduisent des distorsions géométriques (modifications) à la version originale. Il est important de quantifier ces modification introduites au maillage d'origine et d'évaluer la qualité perceptuelle des maillages dégradés. Dans ce cadre, on s'intéresse dans cette thèse à l'évaluation de la qualit
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Sendjasni, Abderrezzaq. "Objective and subjective quality assessment of 360-degree images." Electronic Thesis or Diss., Poitiers, 2023. http://www.theses.fr/2023POIT2251.

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Les images à 360 degrés, aussi appelées images omnidirectionnelles, sont au cœur des contenus immersifs. Avec l’augmentation de leur utilisation notamment grâce à l’expérience interactive et immersive qu’ils offrent, il est primordial de garantir une bonne qualité d’expérience (QoE). Cette dernière est considérablement impactée par la qualité du contenu lui-même. En l’occurrence, les images à 360 degrés, comme tout type de signal visuel, passent par une séquence de processus comprenant l’encodage, la transmission, le décodage et le rendu. Chacun de ces processus est susceptible d’introduire de
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3

Malekmohamadi, Hossein. "Objective models for subjective quality estimate of stereoscopic video." Thesis, University of Surrey, 2013. http://eprints.lincoln.ac.uk/12756/.

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4

Sadeghi, Reza. "Predicting Subjective Sleep Quality Using Objective Measurements in Older Adults." Wright State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wright1588627876830938.

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5

Dalasari, Venkata Gopi Krishna, and Sri Krishna Jayanty. "Low Light Video Enhancement along with Objective and Subjective Quality Assessment." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13500.

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Enhancing low light videos has been quite a challenge over the years. A video taken in low light always has the issues of low dynamic range and high noise. This master thesis presents contribution within the field of low light video enhancement. Three models are proposed with different tone mapping algorithms for extremely low light low quality video enhancement. For temporal noise removal, a motion compensated kalman structure is presented. Dynamic range of the low light video is stretched using three different methods. In Model 1, dynamic range is increased by adjustment of RGB histograms us
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Guo, Jinjiang. "Contributions to objective and subjective visual quality assessment of 3d models." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI099.

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Dans le domaine de l’informatique graphique, les données tridimensionnelles, généralement représentées par des maillages triangulaires, sont employées dans une grande variété d’applications (par exemple, le lissage, la compression, le remaillage, la simplification, le rendu, etc.). Cependant, ces procédés introduisent inévitablement des artefacts qui altèrent la qualité visuelle des données 3D rendues. Ainsi, afin de guider perceptuellement les algorithmes de traitement, il y a un besoin croissant d'évaluations subjectives et objectives de la qualité visuelle à la fois performantes et adaptées
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Shahid, Muhammad. "Methods for Objective and Subjective Video Quality Assessment and for Speech Enhancement." Doctoral thesis, Blekinge Tekniska Högskola [bth.se], Faculty of Engineering - Department of Applied Signal Processing, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00603.

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The overwhelming trend of the usage of multimedia services has raised the consumers' awareness about quality. Both service providers and consumers are interested in the delivered level of perceptual quality. The perceptual quality of an original video signal can get degraded due to compression and due to its transmission over a lossy network. Video quality assessment (VQA) has to be performed in order to gauge the level of video quality. Generally, it can be performed by following subjective methods, where a panel of humans judges the quality of video, or by using objective methods, where
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8

Saidi, Inès. "Analyse et modélisation de la qualité perçue des applications de visiophonie." Thesis, Rennes, INSA, 2018. http://www.theses.fr/2018ISAR0013/document.

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Dans un contexte fortement concurrentiel, l'un des principaux enjeux pour les opérateurs et les fournisseurs de services de visiophonie est de garantir aux utilisateurs une qualité d'expérience (QoE) optimale. Il existe un fort besoin d'une mesure qui reflète la satisfaction et la perception des utilisateurs de ces services. La qualité audiovisuelle d'un appel vidéo doit être contrôlée pour répondre à deux besoins principaux. Le premier concerne la planification de nouvelles technologies en cours de développement. Le second est axé sur le contrôle des communications existantes en évaluant la q
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9

Budhrani, Pinky H. "Race/Ethnicity, Subjective and Objective Sleep Quality, Physical and Psychological Symptoms in Breast Cancer Survivors." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4645.

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Breast cancer is a major health problem and comprises the largest population of cancer survivors in the United States, estimated at 2.9 million women, accounting for 22% of all cancer survivors (National Cancer Institute, 2013). The advances in breast cancer screening, diagnosis and treatment has increased the importance of survivorship needs. A major concern among breast cancer survivors (BCS) is sleep disturbances. This study used an innovative approach to examine ethnic and racial disparities in sleep disturbances present in BCS. In addition, this study also explored sleep disturbances acro
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10

Swenson, Andrea Valeria Roets. "Making Romantic Relationships Tick: Objective and Subjective Time Use and Relationship Quality Among Business Owners." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/70908.

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This study assesses the contextual aspect of working in a family business on intimate relationships. Guided by principles of ecological theory, this study explores the unique situation of individuals who work with an intimate partner in a business they own and how this situation manifests itself in their close relationship. Individuals in a family business are confronted with a potentially unique family-work experience, especially for spouses/partners who work together in a business. It is hypothesized that objective and subjective work time influence couple relationship quality. Six speci
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11

Khaustova, Darya. "Objective assessment of stereoscopic video quality of 3DTV." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S021/document.

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Le niveau d'exigence minimum pour tout système 3D (images stéréoscopiques) est de garantir le confort visuel des utilisateurs. Le confort visuel est un des trois axes perceptuels de la qualité d'expérience (QoE) 3D qui peut être directement lié aux paramètres techniques du système 3D. Par conséquent, le but de cette thèse est de caractériser objectivement l'impact de ces paramètres sur la perception humaine afin de contrôler la qualité stéréoscopique. La première partie de la thèse examine l'intérêt de prendre en compte l'attention visuelle des spectateurs dans la conception d'une mesure objec
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12

Ansari, Yousuf Hameed, and Sohaib Ahmed Siddiqui. "Quality Assessment for HEVC Encoded Videos: Study of Transmission and Encoding Errors." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13656.

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There is a demand for video quality measurements in modern video applications specifically in wireless and mobile communication. In real time video streaming it is experienced that the quality of video becomes low due to different factors such as encoder and transmission errors. HEVC/H.265 is considered as one of the promising codecs for compression of ultra-high definition videos. In this research, full reference based video quality assessment is performed. The raw format reference videos have been taken from Texas database to make test videos data set. The videos are encoded using HM9 refere
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Kaya, Safak. "Quality Of Life In Turkey: A Comparative Analysis With The European Union Member States." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/3/12607932/index.pdf.

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This study aims to describe the quality of life of Turkey in comparison with the European Union Member States including the other candidate countries Bulgaria and Romania. The main question in the study is to determine where Turkey stands in terms of quality of life domains in the membership process to the European Union. For this aim, &ldquo<br>The European Quality of Life Survey&rdquo<br>that has been launched in 2003 including 28 countries in Europe has been used. The survey consists of eight life domains including different objective and subjective indicators to measure the quality of li
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14

Suresh, Nitin. "Mean Time Between Visible Artifacts in Visual Communications." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16238.

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As digital communication of television content becomes more pervasive, and as networks supporting such communication become increasingly diverse, the long-standing problem of assessing video quality by objective measurements becomes particularly important. Content owners as well as content distributors stand to benefit from rapid objective measurements that correlate well with subjective assessments, and further, do not depend on the availability of the original reference video. This thesis investigates different techniques of subjective and objective video evaluation. Our research recommends
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15

Zerman, Emin. "Evaluation et analyse de la qualité vidéo à haute gamme dynamique." Electronic Thesis or Diss., Paris, ENST, 2018. http://www.theses.fr/2018ENST0003.

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Au cours de la dernière décennie, la technologie de l’image et de la vidéo à haute gamme dynamique (High dynamic range - HDR) a attiré beaucoup d’attention, en particulier dans la communauté multimédia. Les progrés technologiques récents ont facilité l’acquisition, la compression et la reproduction du contenu HDR, ce qui a mené à la commercialisation des écrans HDR et à la popularisation du contenu HDR. Dans ce contexte, la mesure de la qualité du contenu HDR joue un rôle fondamental dans l’amélioration de la chaîne de distribution du contenu ainsi que des opérations qui la composent, telles q
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Axelson, Per-Erik. "Quality Measures of Halftoned Images (A Review)." Thesis, Linköping University, Department of Science and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1138.

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<p>This study is a thesis for the Master of Science degree in Media Technology and Engineering at the Department of Science and Technology, Linkoping University. It was accomplished from November 2002 to May 2003. </p><p>Objective image quality measures play an important role in various image processing applications. In this paper quality measures applied on halftoned images are aimed to be in focus. Digital halftoning is the process of generating a pattern of binary pixels that create the illusion of a continuous- tone image. Algorithms built on this technique produce results of very differen
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Servetkienė, Vaida. "Gyvenimo kokybės daugiadimensis vertinimas, identifikuojant kritines sritis." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2013~D_20131115_113802-40756.

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Disertacijoje nagrinėjama aktuali gyvenimo kokybės vertinimo problema. Mokslinėje literatūroje vis dar nėra vienodo gyvenimo kokybės suvokimo ir mokslinio apibrėžimo. Kiekvienas asmuo šiai sąvokai gali suteikti savo prasminį atspalvį, tačiau moksle gyvenimo kokybė turi būti konkrečiais rodikliais išreiškiama ir matuojama sąvoka, susijusi su visuomenės gerove konkrečioje šalyje. Šio darbo tyrimo objektas yra gyvenimo kokybės vertinimas. Disertacijos tikslas – išanalizavus mokslinius tarpdisciplininius požiūrius į gyvenimo kokybės vertinimą, parengti daugiadimensį gyvenimo kokybės vertinimo mode
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18

Klejmová, Eva. "Měření kvality pro HEVC." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220577.

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This diploma thesis deals with standard objective and subjective video quality assessments and with analysis of their applicability to HEVC. Also basic description of video compression standard H.265/HEVC is presented. The main focus of the thesis is a creation of the database of compressed video sequences. Important parameters and features of the reference encoder HM-12 are discussed. Selected methods of objective video quality assessments are implemented on the created database. A part of this thesis is also a suggestion of method for objective video quality assessment, application of this m
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19

Vlad, Raluca Ioana. "Une méthode pour l'évaluation de la qualité des images 3D stéréoscopiques." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00925280.

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Dans le contexte d'un intérêt grandissant pour les systèmes stéréoscopiques, mais sans méthodes reproductible pour estimer leur qualité, notre travail propose une contribution à la meilleure compréhension des mécanismes de perception et de jugement humains relatifs au concept multi-dimensionnel de qualité d'image stéréoscopique. Dans cette optique, notre démarche s'est basée sur un certain nombre d'outils : nous avons proposé un cadre adapté afin de structurer le processus d'analyse de la qualité des images stéréoscopiques, nous avons implémenté dans notre laboratoire un système expérimental a
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20

Xiao, Yao. "User perceived video quality modelling on mobile devices for Vp9 and H265 encoders." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/81842/1/Yao_Xiao_Thesis.pdf.

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This study constructs performance prediction models to estimate the end-user perceived video quality on mobile devices for the latest video encoding techniques –VP9 and H.265. Both subjective and objective video quality assessments were carried out for collecting data and selecting the most desirable predictors. Using statistical regression, two models were generated to achieve 94.5% and 91.5% of prediction accuracies respectively, depending on whether the predictor derived from the objective assessment is involved. These proposed models can be directly used by media industries for video quali
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Rajasekaran, Arunkumar, and Velanginichakravarthy Cherry. "Effect of Network OFF Times on Web Browsing QoE." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3420.

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The web user usually expects a better Quality of Service (QoS) from the Internet Service Provider (ISP) for the best Quality of Experience (QoE). User satisfaction and feedback is one of the most important factors for the service providers to determine their QoS and improve the network performance. Service providers are more interested in QoE to provide a better service to their users to maintain their customers in the competitive market. Since there is no much study work conducted in the QoE on web browsing, only a few studies are available for getting user feedbacks. So the ISP is facing a d
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Sanches, Silvio Ricardo Rodrigues. "Avaliação objetiva de qualidade de segmentação." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-26062014-111553/.

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A avaliação de qualidade de segmentação de vídeos tem se mostrado um problema pouco investigado no meio científico. Apesar disso, estudos recentes na área resultaram em algumas métricas que têm como finalidade avaliar objetivamente a qualidade da segmentação produzida pelos algoritmos. Tais métricas consideram as diferentes formas em que os erros ocorrem (fatores perceptuais) e seus parâmetros são ajustados de acordo com a aplicação em que se pretende utilizar os vídeos segmentados. Neste trabalho apresentam-se: i) uma avaliação da métrica que representa o estado-da-arte, demonstrando que seu
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Nouri, Nedia. "Évaluation de la qualité et transmission en temps-réel de vidéos médicales compressées : application à la télé-chirurgie robotisée." Thesis, Vandoeuvre-les-Nancy, INPL, 2011. http://www.theses.fr/2011INPL049N/document.

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L'évolution des techniques chirurgicales, par l'utilisation de robots, permet des interventions mini-invasives avec une très grande précision et ouvre des perspectives d'interventions chirurgicales à distance, comme l'a démontré la célèbre expérimentation « Opération Lindbergh » en 2001. La contrepartie de cette évolution réside dans des volumes de données considérables qui nécessitent des ressources importantes pour leur transmission. La compression avec pertes de ces données devient donc inévitable. Celle-ci constitue un défi majeur dans le contexte médical, celui de l'impact des pertes sur
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Ševčík, Martin. "Modelování vlastností modelu HVS v Matlabu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217656.

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In theoretical part Diploma thesis deals with the model of human vision HVS (Human Visual System), which can be used for image quality assessment in TV technique area. It has been described calculations of selected JND (Just Noticeable Difference) metrics, used in evaluation of HVS. In practical part of the thesis it has been suggested and realized simulation model in Matlab, which may be used for evaluation of three JND metrics from color and grayscale images and evaluation in spatial a frequency domain. Results of JND models have been compared to another objective image quality evaluation me
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Iveynat, Nermin. "Urban Transformation Projects In Squatter Settlements: The Case Of Ankara, Sentepe Urban Transformation Project." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12610278/index.pdf.

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Squatter settlements still represent the worst of urban poverty and inequality in Turkey. Yet the world has the resources, know-how and power to reach the best experiences. Urban transformation has become a topic of growing interest in many cities in the world. It has also become popular in Turkish cities and the most common urban transformation projects in Turkey are implemented in squatter settlements. However, while the scope of urban transformation interventions generally aims to improve the quality of urban life, increase the livability of cities in various aspects and provide cities with
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Begazo, Dante Coaquira. "Avaliação objetiva e subjetiva de qualidade de vídeo via rede IP com variação de atraso." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-16072013-122005/.

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Atualmente existe uma grande variedade de serviços de telecomunicações focados na transmissão de voz, vídeo e dados através de redes complexas, embora, em muitos casos, o usuário final não seja atendido com um nível de qualidade aceitável. Neste trabalho, se avalia como o serviço de streaming de vídeo em uma rede com protocolo Internet (IP) pode ser afetado por uma condição adversa da rede, tal como a variação de atraso (jitter). São mostrados os resultados de avaliações objetivas e subjetivas de streaming de vídeo que indicam que a qualidade de vídeo é diretamente afetada por fatores de degra
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Bršel, Boris. "Porovnání objektivních a subjektivních metrik kvality videa pro Ultra HDTV videosekvence." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241052.

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Master's thesis deals with the assessment of quality of Ultra HDTV video sequences applying objective metrics. Thesis theoretically describes coding of selected codecs H.265/HEVC and VP9, objective video quality metrics and also subjective methods for assessment of the video sequences quality. Next chapter deals with the implementation of the H.265/HEVC and the VP9 codecs at selected video sequences in the raw format from which arises the test sequences database. Quality of these videos is measured afterwards by objective metrics and selected subjective method. These results are compared for t
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Bain, Jonathan. "Subjective-Objective-Subjective: The Science Of Propaganda." Master's thesis, Faculty of Law, 2020. http://hdl.handle.net/11427/32197.

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This thesis discusses the following: 1. That, while advertising practitioners employ various levels of scientific endeavour (particularly strategic insight development, but also research, demographic data collection, and other objective tools of the trade), its final output is ultimately nonscientific, i.e. subjective creative ideation. (In this way, advertising is not dissimilar to the classic ‘art' of propaganda.) 2. That, for reasons of business necessity, creative ego and a latent form of ‘inferiority complex' the advertising industry describes its work in presentations to more scientifica
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Begazo, Dante Coaquira. "Método de avaliação de qualidade de vídeo por otimização condicionada." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-09032018-152946/.

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Esta Tese propõe duas métricas objetivas para avaliar a percepção de qualidade de vídeos sujeitos a degradações de transmissão em uma rede de pacotes. A primeira métrica usa apenas o vídeo degradado, enquanto que a segunda usa os vídeos de referência e degradado. Esta última é uma métrica de referência completa (FR - Full Reference) chamada de QCM (Quadratic Combinational Metric) e a primeira é uma métrica sem referência (NR - No Reference) chamada de VQOM (Viewing Quality Objective Metric). Em particular, o procedimento de projeto é aplicado à degradação de variação de atraso de pacotes (PDV
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Chen, David. "Subjective and objective vehicle handling behaviour." Thesis, University of Leeds, 1997. http://etheses.whiterose.ac.uk/627/.

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This thesis presents results from a research project seeking to correlate subjective and objective measures of automobile handling. An underlying goal of the work was to demonstrate how a relatively simple lumped parameter model, suitable for effective use at the early stages of vehicle design, could be used to predict both the objective responses and subjective feel of the car. The work associated with the project was centred around sixteen configurations of a prototype saloon car. Objective evaluation included ISO defined steady state, step input, and frequency response testing. Subjective a
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Péchard, Stéphane. "Qualité d'usage en télévision haute définition : évaluations subjectives et métriques objectives." Phd thesis, Université de Nantes, 2008. http://tel.archives-ouvertes.fr/tel-00348586.

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La télévision haute définition (TVHD) est le nouveau système de diffusion sensé apporter une plus grande immersion de l'observateur dans l'action et une qualité d'usage supérieure à celle de la télévision standard (TVSD). Afin de remplir ces exigences, les diffuseurs ont besoin de techniques de mesure de qualité adaptées. Le premier objectif de cette thèse est de nous éclairer sur l'impact de la transition de la TVSD vers la TVHD sur la qualité visuelle. Le second est de proposer des métriques objectives de qualité adaptées à la TVHD. Nous avons tout d'abord étudié plusieurs aspects de la qual
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Nabi, Ghulam Rasul. "Predictors of objective and subjective career success." Thesis, University of Central Lancashire, 1999. http://clok.uclan.ac.uk/20076/.

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The main aim of this research was to examine predictors of both objective (salary). and subjective (perceived) career success. Three sets of predictors were examined: (1) individual attributes, (2) organisational opportunity structures and (3) career strategies. It was expected that a different pattern of variables would predict objective and subjective career success. In addition, the mediating role of career strategies was examined. It was expected that individual attributes and opportunity structures would be positively related to the use of career strategies, and that these strategies woul
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Meit, Heather Anderson. "Objective and subjective personality characteristics of medical students." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1919.

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Thesis (Ph. D.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains vi, 68 p. : ill. Includes abstract. Includes bibliographical references (p. 55-62).
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Quintard, Ludovic. "Evaluation de la qualité des dispositifs d'affichage couleur : des évaluations subjectives à la mesure objective." Poitiers, 2008. http://theses.edel.univ-poitiers.fr/theses/2008/Quintard-Ludovic/2008-Quintard-Ludovic-These.pdf.

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Cette thèse a été effectuée en collaboration avec le Laboratoire national de métrologie et d’essais(LNE) dans le cadre d’une convention CIFRE. Dans ce travail, nous cherchons à réaliser une métrique objective dédiée à l’évaluation des dispositifs de restitution d’images (les écrans). Pour répondre à cette problématique, nous avons développé un algorithme permettant d’estimer la qualité à partir des qualités du moniteur et celles du Système visuel humain (SVH). L’algorithme développé se décompose en trois blocs. Le premier bloc prend en compte les caractéristiques d’un moniteur (fonction de tra
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BEKKAT, NACHIDA. "Critere objectif de qualite subjective d'images monochromes. Conception du modele et validation experimentale." Nantes, 1999. http://www.theses.fr/1999NANT2101.

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La conception de criteres objectifs d'evaluation de la qualite perceptuelle des images suscite un grand interet pour l'optimisation des systemes de traitement d'images. Les travaux de cette these s'inscrivent dans ce contexte. Un critere objectif de qualite doit fournir des mesures de qualite en forte correspondance avec celles fournies par des observateurs. Une modelisation des principales proprietes du systeme visuel humain (svh) doit donc etre etablie et prise en compte dans la conception d'un critere. C'est la demarche utilisee dans cette these. Nous avons concu, developpe et valide un cri
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Su, He Zhicheng Xuxin. "Links between Subjective Assessments and Objective Metrics for Steering." Thesis, KTH, Fordonsdynamik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101925.

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The characteristics of vehicle steering perception are decisive factors concerning vehicle safety and overall pleasure behind the wheel. It is a challenge for vehicle manufacturers to achieve these features and qualities, because usually vehicle tuning almost only relies on subjective evaluation of test drivers, which is costly and time consuming. In order to optimize suspension design and develop a tool that can be used to evaluate steering with objective metrics instead of subjective assessment, links between them must be confirmed. In this master thesis, both objective and subjective testin
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Perry, Darren. "Relationship between objective impairment, subjective psychological factors and PCS." Thesis, University of Birmingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397568.

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Williams, Nicola Kim. "Objective predictors of subjective aesthetic ratings of web pages." Thesis, Keele University, 2015. http://eprints.keele.ac.uk/2324/.

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This research is concerned with the effect of visual stimulus on decision-­‐making and opinions, what visual aspects of a page affect very early impressions of web sites, and how this relates to computational methods of prediction and evaluation of web pages. The aim of this study was to discover whether there are identifiable visual attributes of web pages that can be used to predict subjective opinions. This was explored through three separate studies. These consisted of two correlational studies and a categorisation task. Participants were gained through convenience and snowball sampling, a
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Statham, Andrew. "Subjective and objective assessment of tennis racket performance play." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/4080.

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Assessment of wielded implement performance is important to a variety of human endeavours and often critical to success in a sports context, particularly so in the game of tennis. Tennis racket design and manufacture is a multimillion business involving 10 major international companies. Tennis participation is currently estimated at around 60 million individuals worldwide. Thus the importance of optimum racket performance to maximise competitive advantage and minimise the risks of injury is clear. This thesis presents work to enable advances in tennis racket performance with respect to player
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Vonstad, Elise Klæbo. "Exergaming for Elderly: Subjective Experiences and Objective Movement Characteristics." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for nevromedisin, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25610.

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Background: It is important for elderly to stay healthy and independent for as long as possible, and falls are a major cause for loss of independence. Physical activity aimed at improving balance that includes large movements and cognitive tasks has been shown to decrease fall risk. Using exergames as a training tool has increased in recent years, but the actual movements elicited by such exergames have yet to be investigated objectively. Aim: To investigate usability and enjoyment and provide objective quantification of movement size elicited by two exergames. Methods: Twenty healthy elderly
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Freeman, Jonathan. "Subjective and objective approaches to the assessment of presence." Thesis, University of Essex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298879.

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Witherwax, Renee Ann. "The subjective made manifest through interpretation of the objective." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1314633976.

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STEPINSKI, JOY DIANA. "OBJECTIVE AND SUBJECTIVE MEASUREMENTS OF NORMAL AND OVER HYDRATION." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990804483.

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Bordel, Stéphanie. "Les dimensions objective et subjective du jugement de responsabilité." Rennes 2, 2002. http://www.theses.fr/2002REN20038.

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La @responsabilité apparaît comme une notion difficile à saisir. En effet, cette notion, qui appartient à la fois au langage ordinaire et au langage juridique, présente un caractère polysémique. Cependant, au-delà des divergences et des contradictions, il est possible, en s'appuyant notamment sur l'analyse sociologique de Fauconnet (1920) et les travaux de Piaget (1932) de distinguer deux types de responsabilité : la responsabilité objective et la responsabilité subjective. Ainsi, définir la responsabilité d'une personne reviendrait, d'une part, à chercher son rôle causal dans la production de
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Ash, Howard Alan Simon. "Correlation of subjective and objective handling of vehicle behaviour." Thesis, University of Leeds, 2002. http://etheses.whiterose.ac.uk/609/.

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This thesis presents the results of a research project which sought to find links between driver subjective ratings and objective measures of vehicle handling. The experimental data used in this project has been made available from a previous research project. The experimental data was collected using a prototype vehicle which was used in 16 different configurations. Objective data was collected based around the ISO defined steady state, step input, and frequency response tests. Subjective assessments were collected from eight trained test drivers using a numerical rating scale to a questionna
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Balderas, Gustavo. "Objective Versus Subjective Discipline Referrals in a School District." Thesis, University of Oregon, 2015. http://hdl.handle.net/1794/18722.

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Seven percent of all students are excluded from school every year across the United States for violating school policies and procedures. Exclusion from school causes a number of problems for students such as higher dropout rates, grade retention, more of a likelihood of not graduating from high school, and a widening of the achievement gap. However, the literature review reveals a lack of exclusion research specific to Hispanic students. Therefore, this research study investigated the level of disciplinary referrals leading to student suspensions during the 2013-2014 school year in a southern
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Quintard, Ludovic Fernandez-Maloigne Christine Larabi Mohamed-Chaker. "Evaluation de la qualité des dispositifs d'affichage couleur des évaluations subjectives à la mesure objective /." Poitiers : I-Médias, 2008. http://08.edel.univ-poitiers.fr/theses/index.php?id=1719.

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Guéguin, Marie. "Evaluation objective de la qualité vocale en contexte de conversation." Phd thesis, Université Rennes 1, 2006. http://tel.archives-ouvertes.fr/tel-00132550.

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La qualité vocale des systèmes de télécommunications est évaluée par les opérateurs pour satisfaire leurs usagers. Les méthodes subjectives permettent de connaître le jugement humain mais sont coûteuses : les méthodes objectives représentent une alternative. Un modèle objectif est proposé pour évaluer la qualité en contexte de conversation à partir des qualités d'écoute, de locution et d'interaction. Il est divisé en deux parties : la partie intégration combine les notes de qualité d'écoute, de locution et d'interaction pour estimer une note de qualité de conversation et la partie mesure fourn
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Bednarz, Robin. "Analýza kvality obrazu v digitálních televizních systémech." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217810.

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Diploma thesis deals with the analysis of quality in digital television systems and contains theoretical description of subjective and objective assessment of quality picture methods. The thesis contains short-term and long-term analysis of quality picture of terrestrial television DVB-T. Measurements and experimentations were carried out with the help of Rohde&Schwarz DVQ analyzer of picture quality and software MPEG-2 Quality Monitor and MPEG-2 Elementary stream analyzer.
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Skildheim, Kim Daniel. "Subjective and Objective Crosstalk Assessment Methodologies for Auto-stereoscopic Displays." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18913.

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Stereoscopic perception is achievable when the observer sees a scene from a slightly different angle. Auto-stereoscopic displays utilize several separate views to achieve this without using any special glasses. Crosstalk is an undesired effect of separating views. It is one of the most annoying artefacts occurring in an auto-stereoscopic display. This experiment has two parts. The first part proposes a subjective assessment methodology for characterizing crosstalk in an auto-stereoscopic display, without restriction of subjects&#146; viewing behaviour. The intention was to create an inexpensiv
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