Littérature scientifique sur le sujet « Qualité subjective et objective »
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Articles de revues sur le sujet "Qualité subjective et objective"
Corten, Philippe. « Qualité subjective de la vie et réadaptation : émergence et évolution conceptuelle ». Santé mentale au Québec 18, no 2 (11 septembre 2007) : 33–47. http://dx.doi.org/10.7202/032270ar.
Texte intégralThielmann, Beatrice, Robin Sebastian Schierholz et Irina Böckelmann. « Subjective and Objective Consequences of Stress in Subjects with Subjectively Different Sleep Quality—A Cross-Sectional Study ». International Journal of Environmental Research and Public Health 18, no 19 (23 septembre 2021) : 9990. http://dx.doi.org/10.3390/ijerph18199990.
Texte intégralVoyer, Philippe, et Richard Boyer. « Le bien-être psychologique et ses concepts cousins, une analyse conceptuelle comparative ». Santé mentale au Québec 26, no 1 (5 février 2007) : 274–96. http://dx.doi.org/10.7202/014521ar.
Texte intégralLECLERCQ, M., S. ROCHE, M. FAUVERNIER, L. LETRILLIART, A. MARTIN et J. MACABREY. « MON ALIMENTATION, ET ALORS ? CORRELATION ENTRE AUTO-EVALUATION DE L'ALIMENTATION ET SCORE D'ADHERENCE AU REGIME MEDITERRANEEN ». EXERCER 33, no 185 (1 septembre 2022) : 299–305. http://dx.doi.org/10.56746/exercer.2022.185.299.
Texte intégralFarahani, Mansoureh Ashghali, Samira Soleimanpour, Samantha J. Mayo, Jamie S. Myers, Prabdeep Panesar et Farzaneh Ameri. « Revue systématique : Effet des exercices corps-esprit sur la fonction cognitive des survivants du cancer ». Canadian Oncology Nursing Journal 32, no 1 (5 février 2022) : 49–60. http://dx.doi.org/10.5737/236880763214960.
Texte intégralMercier, Céline, Raymond Tempier et Et Claude Renaud. « Services communautaires et qualité de la vie : une étude d'impact en région éloignée* ». Canadian Journal of Psychiatry 37, no 8 (octobre 1992) : 553–63. http://dx.doi.org/10.1177/070674379203700806.
Texte intégralBochaver, K. A., L. M. Dovzhik, D. V. Bondarev et S. I. Reznichenko. « Subjective Well-Being in Sports Coaches ». Experimental Psychology (Russia) 15, no 4 (2022) : 181–94. http://dx.doi.org/10.17759/exppsy.2022150412.
Texte intégralReohr, P., M. Dorenkamp, P. Vik et M. Irrgang. « C-29 Sleep and Cognition Among Older Adults : Objective Performance versus Subjective Complaint ». Archives of Clinical Neuropsychology 34, no 6 (25 juillet 2019) : 1058. http://dx.doi.org/10.1093/arclin/acz034.191.
Texte intégralSaletu, B., P. Anderer, G. Gruber, S. Parapatics, G. Dorffner et G. M. Saletu-Zyhlarz. « Objective versus subjective sleep in patients with insomnia related to generalized anxiety disorder and apnea as compared with normals ». European Psychiatry 26, S2 (mars 2011) : 2174. http://dx.doi.org/10.1016/s0924-9338(11)73877-9.
Texte intégralWesterhof, Gerben, Abigail Nehrkorn-Bailey, Allyson Brothers, Jelena Siebert, Han-Yun (Heidi) Tseng, Manfred Diehl, Hans-Werner Wahl et Susanne Wurm. « THE EFFECT OF SUBJECTIVE AGING ON HEALTH AND SURVIVAL : A SYSTEMATIC REVIEW OF LONGITUDINAL DATA ». Innovation in Aging 6, Supplement_1 (1 novembre 2022) : 427. http://dx.doi.org/10.1093/geroni/igac059.1678.
Texte intégralThèses sur le sujet "Qualité subjective et objective"
Torkhani, Fakhri. « Analyse subjective et évaluation objective de la qualité perceptuelle des maillages 3D ». Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT051/document.
Texte intégral3D mesh animations have been increasingly used in various applications, e.g., in digital entertainment, computer-aided design and medical imaging. It is possible that a mesh model undergoes some lossy operations, e.g., compression, watermarking or simplification, which can impair the original mesh surface and introduce geometric distortions. An important task is to quantify such distortions and assess the perceptual quality of impaired meshes. In this manuscript, we focus on the perceptual quality assessment of 3D static and dynamic meshes. We present psychometric experiments that we conducted to measure the subjective perceptual quality of dynamic meshes. We also present new full-reference and reduced-reference objective metrics capable of faithfully evaluating the perceptual quality of 3D static and dynamic meshes
Saidi, Inès. « Analyse et modélisation de la qualité perçue des applications de visiophonie ». Thesis, Rennes, INSA, 2018. http://www.theses.fr/2018ISAR0013/document.
Texte intégralIn a highly competitive environment, one of the key challenges for operators and providers of video telephony services is to ensure the highest quality of experience (QoE). There is a strong need for a measure that reflects users satisfaction and perception of these services. The audio-visual quality of a video call must be controlled to meet two main needs. The first concerns the planning of new technologies under development. The second is focused on the control of existing communications by assessing the quality of the services offered and evaluating them. Two approaches are used to evaluate audio-visual quality: subjective tests by collecting scores given by participants on quality scales, after viewing and listening to audiovisual sequences and objective metrics based on automatic audio/ video or audiovisual quality evaluation algorithms. Concerning telephony services, decades of research, standardization work and network exploitation, have allowed operators to master the automatic monitoring tools and to determine the representative metrics of voice quality. However, the metrics for measuring the audiovisual quality of a conversational services are not yet mature and not exploited by telecommunication operators. The present work focuses on finding representative metrics of the perception of the video telephony anc videoconferencing services quality. These objective metrics are calculated from the audio and video signals. Subjective tests are conducted to collect the judgment of service users on the perceived quality according to different levels of degradation. We studied the impact of network conditions (packet loss, jitter and desynchronization) on the QoE of a video call. The general principle is then to establish a correlation between the selected objective metrics and the perceived quality as expressed by the users. The results showed that new metric of overall audiovisual quality that take into account the temporal aspect of video are more powerful than image quality based metrics. On the other hand, the use of a machine learning approach represents a solution to generat a global quality prediction model from the degradation metrics (blur, pixelization, image freezing, ... )
Sendjasni, Abderrezzaq. « Objective and subjective quality assessment of 360-degree images ». Electronic Thesis or Diss., Poitiers, 2023. http://www.theses.fr/2023POIT2251.
Texte intégral360-degree images, a.k.a. omnidirectional images, are in the center of immersive media. With the increase in demands of the latter, mainly thanks to the offered interactive and immersive experience, it is paramount to provide good quality of experience (QoE). This QoE is significantly impacted by the quality of the content. Like any type of visual signal, 360-degree images go through a sequence of processes including encoding, transmission, decoding, and rendering. Each of these processes has the potential to introduce distortions to the content. To improve the QoE, image quality assessment (IQA) is one of the strategies to be followed. This thesis addresses the quality evaluation of 360-degree images from the objective and subjective perspectives. By focusing on the influence of Head Mounted Displays (HMDs) on the perceived quality of 360-degree images, a psycho-visual study is designed and carried out using four different devices. For this purpose, a 360-degree image datasets is created and a panel of observers is involved. The impact of HMDs on the quality ratings is identified and highlighted as an important factor to consider when con- ducting subjective experiments for 360-degree images. From the objective perspective, we first comprehensively benchmarked several convolutional neural network (CNN) models under various configurations. Then, the processing chain of CNN-based 360-IQA is improved at different scales, from input sampling and representation to aggregating quality scores. Based on the observations of the above studies as well as the benchmark, two 360-IQA models based on CNNs are proposed to accurately predict the quality of 360-degree images. The obtained observations and conclusions from the various contributions shall bring insights for assessing the quality of 360-degree images
360-graders bilder, også kjent som rundstrålende bilder, er i sentrum av oppslukende medier. Med økningen i forventninger til sistnevnte, hovedsakelig takket være den aktiverte interaktive og oppslukende opplevelse, er det avgjørende å gi god kvaliteten på opplevelsen (QoE).Denne QoE er betydelig påvirket av kvaliteten på innholdet. Som alle typer visuelle signaler går 360-graders bilder gjennom en sekvens av prosesser, inkludert koding, overføring, dekoding og gjengivelse. Hver av disse prosessene har potensial til å introdusere forvrengninger til innholdet.For å forbedre QoE er vurdering av bildekvalitet (IQA) en av strategiene å følge. Denne oppgaven tar for seg kvalitetsevaluering av 360-graders bilder fra objektive og subjektive perspektiver. Ved å fokusere på påvirkningen av Head Mounted Displays (HMD-er) på den oppfattede kvaliteten til 360-graders bilder, er en psyko-visuell studie designet og utført ved hjelp av fire forskjellige enheter. For dette formålet opprettes et 360-graders bildedatasett og et panel av observatører er involvert. Virkningen av HMD-er på valitetsvurderingene identifiseres og fremheves som en viktig faktor når du utfører subjektive eksperimenter for 360-graders bilder.Fra det objektive perspektivet benchmarket vi først flere konvolusjonelle nevrale nettverk (CNN) under forskjellige konfigurasjoner. Deretter forbedres prosesseringskjeden til CNN-baserte 360-IQA i forskjellige skalaer, fra input-sampling og representasjon til aggregering av kvalitetspoeng. Basert på observasjonene av de ovenfornevnte studiene så vel som benchmark, foreslås to 360-IQA-modeller basert på CNN-er for å nøyaktig forutsi kvaliteten på 360-graders bilder.De innhentede observasjonene og konklusjonene fra de ulike bidragene skal gi innsikt for å vurdere kvaliteten på 360-graders bilder
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.
Texte intégralIn the last decade, high dynamic range (HDR) image and video technology gained a lot of attention, especially within the multimedia community. Recent technological advancements made the acquisition, compression, and reproduction of HDR content easier, and that led to the commercialization of HDR displays and popularization of HDR content. In this context, measuring the quality of HDR content plays a fundamental role in improving the content distribution chain as well as individual parts of it, such as compression and display. However, HDR visual quality assessment presents new challenges with respect to the standard dynamic range (SDR) case. The first challenge is the new conditions introduced by the reproduction of HDR content, e.g. the increase in brightness and contrast. Even though accurate reproduction is not necessary for most of the practical cases, accurate estimation of the emitted luminance is necessary for the objective HDR quality assessment metrics. In order to understand the effects of display rendering on the quality perception, an accurate HDR frame reproduction algorithm was developed, and a subjective experiment was conducted to analyze the impact of different display renderings on subjective and objective HDR quality evaluation. Additionally, in order to understand the impact of color with the increased brightness of the HDR displays, the effects of different color spaces on the HDR video compression performance were also analyzed in another subjective study. Another challenge is to estimate the quality of HDR content objectively, using computers and algorithms. In order to address this challenge, the thesis proceeds with the performance evaluation of full-reference (FR) HDR image quality metrics. HDR images have a larger brightness range and higher contrast values. Since most of the image quality metrics are developed for SDR images, they need to be adapted in order to estimate the quality of HDR images. Different adaptation methods were used for SDR metrics, and they were compared with the existing image quality metrics developed exclusively for HDR images. Moreover, we propose a new method for the evaluation of metric discriminability based ona novel classification approach. Motivated by the need to fuse several different quality databases, in the third part of the thesis, we compare subjective quality scores acquired by using different subjective test methodologies. Subjective quality assessment is regarded as the most effective and reliable way of obtaining “ground-truth” quality scores for the selected stimuli, and the obtained mean opinion scores (MOS) are the values to which generally objective metrics are trained to match. In fact, strong discrepancies can easily be notified across databases when different multimedia quality databases are considered. In order to understand the relationship between the quality values acquired using different methodologies, the relationship between MOS values and pairwise comparisons (PC) scaling results were compared. For this purpose, a series of experiments were conducted using double stimulus impairment scale (DSIS) and pairwise comparisons subjective methodologies. We propose to include cross-content comparisons in the PC experiments in order to improve scaling performance and reduce cross-content variance as well as confidence intervals. The scaled PC scores can also be used for subjective multimedia quality assessment scenarios other than HDR
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.
Texte intégralVlad, 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.
Texte intégralNouri, 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.
Texte intégralThe digital revolution in medical environment speeds up development of remote Robotic-Assisted Surgery and consequently the transmission of medical numerical data such as pictures or videos becomes possible. However, medical video transmission requires significant bandwidth and high compression ratios, only accessible with lossy compression. Therefore research effort has been focussed on video compression algorithms such as MPEG2 and H.264. In this work, we are interested in the question of compression thresholds and associated bitrates are coherent with the acceptance level of the quality in the field of medical video. To evaluate compressed medical video quality, we performed a subjective assessment test with a panel of human observers using a DSCQS (Double-Stimuli Continuous Quality Scale) protocol derived from the ITU-R BT-500-11 recommendations. Promising results estimate that 3 Mbits/s could be sufficient (compression ratio aroundthreshold compression level around 90:1 compared to the original 270 Mbits/s) as far as perceived quality is concerned. Otherwise, determining a tolerance to lossy compression has allowed implementation of a platform for real-time transmission over an IP network for surgical videos compressed with the H.264 standard from the University Hospital of Nancy and the school of surgery
Bordel, Stéphanie. « Les dimensions objective et subjective du jugement de responsabilité ». Rennes 2, 2002. http://www.theses.fr/2002REN20038.
Texte intégralThe @responsibility appears like a difficult notion to understand. In fact, this word is part, at the same time, of ordinary language and juridcal language, it has a polysemic character. Far from those differences and contradictions, however, basing on the sociological analysis of Fauconnet (1920) and Piaget's work (1932), it is possible to distinguish two types of responsibility : objective responsibility and subjective responsibility. In this way, to define responsibility of a person would be, on one hand to search his causal role in the facts that are observed. This means doing causal attribution, it is the objective responsibility. On the other hand, it would be the research of teleological aspects like intentionnality or reasons, it is the subjective responsibility. This theoretical proposition forms the subject of an empirical validation. Four series of studies have shown that responsibility can in the facts be defined by those two components but that there are indissociable. Responsibility always recall to both objective responsibility and subjective responsibility whatever informations are given to the subjects. In other respects, it appears that the subjects, all coming from different societies with different laws, don't give the same place to objective responsibility and subjective responsibility
BEKKAT, NACHIDA. « Critere objectif de qualite subjective d'images monochromes. Conception du modele et validation experimentale ». Nantes, 1999. http://www.theses.fr/1999NANT2101.
Texte intégralLavoie, Jacinthe. « La relation entre les construits cognitifs et affectifs et les composantes objectives et subjectives de la qualité de vie ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23729.pdf.
Texte intégralLivres sur le sujet "Qualité subjective et objective"
Jeuland, Emmanuel, et Christine Boillot, dir. La qualité dans la performance judiciaire : une notion objective et relationnelle ? IRJS, 2015. http://dx.doi.org/10.14375/np.9782919211494.
Texte intégralChapitres de livres sur le sujet "Qualité subjective et objective"
« Entre quête subjective et enquête objective ». Dans Beyond Given Knowledge, 161–74. De Gruyter, 2017. http://dx.doi.org/10.1515/9783110569230-012.
Texte intégralAzam, Mohammad, Mohamed Rafik Noor Mohamed Qureshi et Faisal Talib. « Quality Evaluation of Health Care Establishment Utilizing Fuzzy AHP ». Dans Hospital Management and Emergency Medicine, 498–535. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2451-0.ch025.
Texte intégral« A. Bergson : durée subjective, durée objective et sympathie ». Dans La dialectique de l'intuition chez Alfred North Whitehead, 127–30. Berlin, Boston : DE GRUYTER, 2005. http://dx.doi.org/10.1515/9783110322026.127.
Texte intégralBerrichi, H., M. Tiberge, L. Arbus, S. Khardi et M. Vallet. « Quantification objective et subjective des troubles de la vigilance en situations réelles de conduite ». Dans Vigilance et transports, 405–13. Presses universitaires de Lyon, 1995. http://dx.doi.org/10.4000/books.pul.40227.
Texte intégralSondag, Gérard. « Complementarite Technique et Complementarite Esthetique ». Dans The Paideia Archive : Twentieth World Congress of Philosophy, 166–71. Philosophy Documentation Center, 1998. http://dx.doi.org/10.5840/wcp20-paideia1998125.
Texte intégralCupa, D., A. Dazord, J. P. Juquel, M. L. Gourdon, H. Riazuelo, C. A. Dupuy, P. Raymond, D. Damigos et C. Buisson. « La qualité de vie subjective de patients en hémodialyse en centre, en autodialyse, en dialyse péritonéale et à domicile ». Dans Psychologie en néphrologie, 125–48. EDP Sciences, 2006. http://dx.doi.org/10.1051/978-2-84254-221-4.c011.
Texte intégralCupa, Dominique, Alice Dazord, Jean-Pierre Juquel, Marie-Laure Gourdon, Hélène Riazuelo-Deschamps, Claire-Antoinette Dupuy, Paul Raymond, Dimitri Damigos et Claude Buisson. « Étude comparative de la qualité de vie subjective de patients en hémodialyse à domicile, en centre, en autodialyse, et en dialyse péritonéale ». Dans Psychologie en néphrologie, 125. EDK, Groupe EDP Sciences, 2002. http://dx.doi.org/10.3917/edk.cupa.2002.01.0125.
Texte intégralReid, Samuel, et Travis West. « Measuring the Frequency of Critical Thinking in a Second Language Academic Discussion Course ». Dans Development of Innovative Pedagogical Practices for a Modern Learning Experience, 237–68. CSMFL Publications, 2021. http://dx.doi.org/10.46679/978819484836309.
Texte intégralPoorun, Ravi, et Rebeccah Slater. « The neurophysiological evaluation of nociceptive responses in neonates ». Dans Oxford Textbook of Paediatric Pain, 401–6. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199642656.003.0039.
Texte intégralDeng, Natalja. « On Metaphysical Explanations of Psychological Asymmetries ». Dans Temporal Asymmetries in Philosophy and Psychology, 242–58. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780198862901.003.0011.
Texte intégralActes de conférences sur le sujet "Qualité subjective et objective"
Gjertsen, Ole, Ryan Mushinski, Preston Wolfram, Jeffrey Leisey, Mani Bandi, Roberta Santana, Gregory Andreasen, Paul Pastusek et Dustin Daechsel. « IADC Dull Code Upgrade : Photometric Classification and Quantification of the New Dull Codes ». Dans SPE/IADC International Drilling Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/212533-ms.
Texte intégralZhi, Naiqian, Beverly K. Jaeger, Andrew Gouldstone, Samuel Frank et Rifat Sipahi. « Objective Quantitative Assessment of Movement Disorders Through Analysis of Static Handwritten Characters ». Dans ASME 2015 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/dscc2015-9974.
Texte intégralMelka, A. C. « Retentissement sur l’état bucco-dentaire et la qualité de vie des patients avec un cancer de la cavité buccale ou de l’oropharynx traits par radiothérapie conformationnelle tridimensionnelle versus avec modulation d’intensité : à propos de 52 cas ». Dans 66ème Congrès de la SFCO. Les Ulis, France : EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603012.
Texte intégralRynders, Maurice C., Rafael Navarro et M. Angeles Losada. « Off-axis Longitudinal Chromatic Aberration in the Human Eye ». Dans Vision Science and its Applications. Washington, D.C. : Optica Publishing Group, 1996. http://dx.doi.org/10.1364/vsia.1996.ma.1.
Texte intégralDobson, V., et N. A. Carpenter. « Acuity Card Assessment of Visual Acuity in High-Risk Infants : Interobserver Agreement in a Subjective Test Procedure ». Dans Noninvasive Assessment of the Visual System. Washington, D.C. : Optica Publishing Group, 1987. http://dx.doi.org/10.1364/navs.1987.wa4.
Texte intégralIsaacs, Jason, Sean MacKinnon, Kayla Joyce et Sherry Stewart. « Cannabis Use Among Women : Does Daily Assessment Reactivity Affect Usage Patterns ? » Dans 2020 Virtual Scientific Meeting of the Research Society on Marijuana. Research Society on Marijuana, 2021. http://dx.doi.org/10.26828/cannabis.2021.01.000.30.
Texte intégralAlcalá Fazio, Enrique, et Nuria Alvarez Fernández. « Experimental protocol to assess the tourism vehicles accessibility based on heart rate and access time measurements. » Dans CIT2016. Congreso de Ingeniería del Transporte. Valencia : Universitat Politècnica València, 2016. http://dx.doi.org/10.4995/cit2016.2016.3501.
Texte intégralKitayama, Kakeru, Orchida Dianita, Kimi Ueda, Hirotake Ishii, Hiroshi Shimoda et Fumiaki Obayashi. « Micro-refresh to Restore Intellectual Concentration Decline during Office Work : An Attempt at Quantitative Effect Evaluation ». Dans Intelligent Human Systems Integration (IHSI 2023) Integrating People and Intelligent Systems. AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1002824.
Texte intégralHanada, Satoshi, Koji Ito et Kenji Mashio. « US-APWR Human System Interface System Verification and Validation Program for Digital I&C Design ». Dans 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29928.
Texte intégralArtmann, G., R. Grebe, H. Wolff, R. Degenhardt et H. Schmid-SchÖnbein. « NOVEL TECHIQUES FOR QUANTIFICATION OF RBC-SHAPE (RS) AND SHEAR INDUCED RBC ELONGATION (SIRE) : APPLICATION FOR ANALYSIS OF DRUG INDUCED ALTERATIONS ». Dans XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644217.
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