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Статті в журналах з теми "Évaluation de la qualité d'image"
Gond, Valéry, and Stéphane Guitet. "Elaboration d'un diagnostic post-exploitation par télédétection spatiale pour la gestion des forêts de Guyane." BOIS & FORETS DES TROPIQUES 299, no. 299 (March 1, 2009): 5. http://dx.doi.org/10.19182/bft2009.299.a20423.
Повний текст джерелаTran, P. "L'Assurance qualité en quête d'image." Revue de Métallurgie 87, no. 10 (October 1990): 887–92. http://dx.doi.org/10.1051/metal/199087100887.
Повний текст джерелаSteinert, Brigitte. "Évaluation et système-qualité." Revue internationale d'éducation de Sèvres, no. 26 (June 1, 2000): 39–55. http://dx.doi.org/10.4000/ries.2524.
Повний текст джерелаBousefsaf, Frédéric, Mohamed Tamaazousti, Souheil Hadj Said, and Rémi Michel. "Complétion d'image exploitant des données multispectrales." Revue Française de Photogrammétrie et de Télédétection, no. 215 (August 16, 2017): 65–79. http://dx.doi.org/10.52638/rfpt.2017.349.
Повний текст джерелаMannessier, L., J. Chiaroni, and P. Y. Le Pennec. "Évaluation externe de la qualité." Transfusion Clinique et Biologique 8, no. 6 (December 2001): 475–77. http://dx.doi.org/10.1016/s1246-7820(01)00202-6.
Повний текст джерелаMarpaux, Nadine, Beatrice Belcour, and Stephane Begue. "Contrôle qualité–Évaluation externe de la qualité–Phase pilote européenne." Transfusion Clinique et Biologique 28, no. 4 (November 2021): S62. http://dx.doi.org/10.1016/j.tracli.2021.08.173.
Повний текст джерелаBody, Olivier. "Qualité et évaluation : certification pour la qualité des interventions sociales." Journal du droit des jeunes 258, no. 8 (2006): 47. http://dx.doi.org/10.3917/jdj.258.047.
Повний текст джерелаMeftah, N., H. Cherif, F. Yangui, M. Triki, Y. Hdidene, and M. R. Charfi. "Évaluation de la qualité de vie." Revue des Maladies Respiratoires Actualités 12, no. 1 (January 2020): 114. http://dx.doi.org/10.1016/j.rmra.2019.11.240.
Повний текст джерелаLepage, Thierry, and Caroline de Schaetzen. "Évaluation d'un échantillon d'index." Meta 42, no. 2 (September 30, 2002): 328–46. http://dx.doi.org/10.7202/003465ar.
Повний текст джерелаAfri, Claude, and Henri Portugal. "Évaluation du système qualité d’un laboratoire de biologie médicale: l’audit qualité." Bio Tribune Magazine 20, no. 1 (November 2006): 36–39. http://dx.doi.org/10.1007/bf03010080.
Повний текст джерелаДисертації з теми "Évaluation de la qualité d'image"
Souidène, Wided. "Exploitation de la diversité informationnelle en restauration autodidacte et évaluation de qualité." Paris 13, 2007. http://www.theses.fr/2007PA132015.
Повний текст джерелаMambo, Shadrack. "Optimisation et évaluation des performance en traitement d'image." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1125/document.
Повний текст джерелаD’Tech Thesis SummaryThe importance of medical imaging as a core component of several medical application and healthcare diagnosis cannot be over emphasised. Integration of useful data acquired from different images is vital for proper analysis of information contained in the images under observation. For the integration process to be successful, a procedure referred to as image registration is necessary.The purpose of image registration is to align two images in order to find a geometric transformation that brings one image into the best possible spatial correspondence with another image by optimising a registration criterion. The two images are known as the target image and the source image. Image registration methods consist of having the two images referenced with control points. This is followed by a registration transformation that relates the two images and a similarity metric function that aims to measure the qualitative value of closeness or degree of fitness between the target image and the source image. Finally, an optimiser which seeks an optimal transformation inside the defined solution search space is performed.This research presents an automated image registration algorithm for solving multimodal image registration on lung Computer Tomography (CT) scan pairs, where a comparison between regular step gradient descent optimisation technique and evolutionary optimisation was investigated. The aim of this research is to carry out optimisation and performance evaluation of image registration techniques in order to provide medical specialists with estimation on how accurate and robust the registration process is. Lung CT scan pairs are registered using mutual information as a similarity measure, affine transformation and linear interpolation. In order to minimise the cost function, an optimiser, which seeks the optimal transformation inside the defined search space is applied.Determination of a transformation model that depends on transformation parameters and identification of similarity metric based on voxel intensity were carried out. By fitting transformation to control points, three transformation models were compared. Affine transformation produced the best recovered image when compared to non-reflective similarity and projective transformations. The results of this research compares well with documented results from EMPIRE 10 Challenge research and conforms to both theoretical principles as well as practical applications.The contribution of this research is its potential to increase the scientific understanding of image registration of anatomical body organs. It lays a basis for further research in performance evaluation of registration techniques and validation of procedures to other types of algorithms and image registration application areas, such as remote sensing, satellite communication, biomedical engineering, robotics, geographical information systems and mapping, among others
Yang, Yanqin. "Contribution à l'évaluation objective de la qualité d'images couleur estimées par dématriçage." Thesis, Lille 1, 2009. http://www.theses.fr/2009LIL10089/document.
Повний текст джерелаOur work deals with the quality of colour images provided by a mono-CCD colour camera, which acquires only one colour component at each pixel by means of the CFA (Colour Filter Array) which covers the CCD sensor. A procedure - called demosaicing - is necessary to estimate the other two missing colour components at each pixel, so as to obtain a colour image in this kind of cameras. We aim to determine which method of demosaicing provides the results that are best adapted to colour image analyses for the reconstruction of scene. First, we present the principles on how the mono-CCD cameras acquire digital colour images, as well as the different arrangements of CFA used in such cameras. Once the influence of the CFA arrangement on the performance of demosaicing has been presented, we focus our studies on the demosaicing methods based on the Bayer CFA. A mathematical formalization for demosaicing is proposed before we present the numerous demosaicing methods in the literature, as well as the post-processing algorithms to correct the demosaiced images. We then investigate the evaluation criteria for the quality of the colour images estimated by demosaicing. First are described the different possible artefacts generated by demosaicing and the reasons for their generation, which allow us to point out the limits of the classical measures used to evaluate the estimated images. We then propose two original measures to quantify the presence of the two main artefacts, namely false colour and zipper effect. At last, we present new criteria based on the analysis of features extracted from colour images, by measuring the quality of edge detection in the estimated images
Cherifi, Daikha. "Amélioration et évaluation de la qualité des images." Thesis, Paris 13, 2014. http://www.theses.fr/2014PA132053.
Повний текст джерелаThe aim of this thesis is to propose new methods for image enhancement based on oriented and multi-scale transforms using some perceptual criteria. The first part of the thesis is devoted to the development of a simple and efficient contrast enhancement method inspired from the human visual system. This method is evaluated on a set of natural color and monochrome images. The obtained results are evaluated subjectively and by using objective measures based on energy spectrum analysis and perceptual criteria. The enhancement technique is also extended to some medical images, such as mammography and endoscopy images. A special contrast enhancement method adapted to mammography is then proposed. It is based on a segmentation process using a priori information on the mammography images. The last part of the thesis is devoted to image enhancement evaluation. A critical literature survey of image enhancement evaluation methods is provided. The evaluation method proposed in this thesis is based on the radial and angular analysis of the Fourier powerspectrum. Another perceptual approach is proposed to evaluate the output. This method is based on the analysis of the visibility map computed by using a pyramidal contrast. The evaluation is performed on some samples taken from two databases. Both subjective and objective evaluations demonstrate the efficiency of the proposed image enhancement methods
Hachicha, Walid. "Traitement, codage et évaluation de la qualité d’images stéréoscopiques." Thesis, Paris 13, 2014. http://www.theses.fr/2014PA132037.
Повний текст джерелаRecent developments in 3D stereoscopic technology have opened new horizons in many application fields such as 3DTV, 3D cinema, video games and videoconferencing and at the same time raised a number of challenges related to the processing and coding of 3D data. Today, stereoscopic imaging technology is becoming widely used in many fields. There are still some problems related to the physical limitations of image acquisition systems, e.g. transmission and storage requirements. The objective of this thesis is the development of methods for improving the main steps of stereoscopic imaging pipeline such as enhancement, coding and quality assessment. The first part of this work addresses quality issues including contrast enhancement and quality assessment of stereoscopic images. Three algorithms have been proposed. The first algorithm deals with the contrast enhancement aiming at promoting the local contrast guided by calculated/estimated object importance map in the visual scene. The second and the third algorithms aim at predicting the distortion severity of stereo images. In the second one, we have proposed a fullreference metric that requires the reference image and is based on some 2D and 3D findings such as amplitude non-linearity, contrast sensitivity, frequency and directional selectivity, and binocular just noticeable difference model. While in the third algorithm, we have proposed a no-reference metric which needs only the stereo pair to predict its quality. The latter is based on Natural Scene statistics to identify the distortion affecting the stereo image. The statistic 3D features consist in combining features extracted from the natural stereo pair and those from the estimate disparity map. To this end, a joint wavelet transform, inspired from the vector lifting concept is first employed. Then, the features are extracted from the obtained subbands. The second part of this dissertation addresses stereoscopic image compression issues. We started by investigating a one-dimensional directional discrete cosine transform to encode the disparity compensated residual image. Afterwards, and based on the wavelet transform, we investigated two techniques for optimizing the computation of the residual image. Finally, we present efficient bit allocation methods for stereo image coding purpose. Generally, the bit allocation problem is solved in an empirical manner by looking for the optimal rates leading to the minimum distortion value. Thanks to recently published work on approximations of the entropy and distortion functions, we proposed accurate and fast bit allocation schemes appropriate for the open-loop and closed-loop based stereo coding structures
Beretta, Patricia. "Compression d'images appliquée aux angiographies cardiaques : aspects algorithmiques, évaluation de la qualité diagnostique." Lyon, INSA, 1997. http://theses.insa-lyon.fr/publication/1997ISAL0107/these.pdf.
Повний текст джерелаQuintard, 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.
Повний текст джерелаThis thesis was conducted in cooperation with the Laboratoire National de Métrologie et d’Essais (LNE) within the framework of a CIFRE convention. This work consisted in realising an objective metric dedicated to the assessment of image retrieval devices (screens). To address the underlying issues, we developed an algorithm for estimating quality using the monitor features and those of the Human Visual System. The developed algorithm is made up of three blocks. The first block takes into account the technical features of the monitor (transfer function, gamut, etc. ) to turn a digital image (sent to the monitor using a digital device) into a physical image (displayed by the monitor). The second block of the algorithm models the transformation of the physical image into a perceptual image. This modelling involves familiarity with human visual system operational principles, particularly the encoding of colour information, as well as the perceptual attributes involved in judging a colour digital image quality. The required knowledge is described in chapter 4 of the present thesis. The third and last block was developed to rate the quality of this perceptual image. A subjective study of the quality of 5 different LCD screens involving thirty participants and based on six analysis criteria was performed. It successfully showed that colour, saturation and contrast are major factors on which the screen quality is assessed. The metric developed was based on these findings and shows good correlation with subjective evaluation data, thus showing similarity with human judgement. The metric was also tested in the field of JPEG and JPEG2000 compression with similar efficiency
Zhang-Ge, Lu. "Modèles numériques pour l'évaluation objective de la qualité d'images médicales." Angers, 2012. http://tel.archives-ouvertes.fr/tel-00995416.
Повний текст джерелаMedical image quality assessment is critical for comparing and optimizing medical imaging system. In the frame of task-based approach, numerical observers proposed for the objective medical image quality assessment have several limitations: e. G. For the multi-signal localization, most need a priori knowledge of signal parameters; multi-slice MOs narrow the task down to the detection of one symmetrical signal at the image centre. In this thesis, we propose novel numerical observers: the CJO for the detection of one parametric signal with random amplitude, orientation and size on single-slice; the PCJO and the msPCJO for the detection-localization of multiple parametric signals with random amplitude, orientation, size and location on single-slice and multi-slice, respectively. Two observer studies were designed and implemented for their validation on MR images with MS lesions, and the JAFROC FOM results indicate that they are promising for predicting radiologists' task performance, ultimately for evaluating medical imaging systems
Khan, Muhammad Murtaza. "Fusion d'images multispectrale, hyperspectrale et panchromatique de résolutions spatiales différentes et évaluation de la qualité en télédétection satellitaire." Grenoble INPG, 2009. http://www.theses.fr/2009INPG0090.
Повний текст джерелаFusion or Pansharpening improves the spatial quality of Multispectral satellite images by making use of details present in a high resolution Panchromatic image. The different nature of Panchromatic and Multispectral sensors requires that the details are added using a detail injection model. Most of the available detail injection model parameters are estimated at degraded resolution and then interpolated for use at the higher resolution. In this work we have presented a detail injection model which estimates the detail injection parameters directly at the desired higher resolution. The model optimizes the ”Quality Not Requiring a Reference index”. The proposed method is then extended for pansharpening of Hyperspectral images. Finally, a quality assessment index, not requiring a high resolution reference, is proposed for determining the quality of pansharpened images at full resolution. The novelty of the method lies in the use of sensors ”Modulation Transfer Function” filters for separating the low and high frequency information for determining the spectral and spatial distortions, respectively
Zhang, Lu. "Modèles Numériques pour l'Évaluation Objective de la Qualité d'Images Médicales." Phd thesis, Université d'Angers, 2012. http://tel.archives-ouvertes.fr/tel-00782522.
Повний текст джерелаКниги з теми "Évaluation de la qualité d'image"
Laurin, Jacqueline. Évaluation de la qualité des soins infirmiers. 2nd ed. St. Hyacinthe, Qué: Edisem, 1988.
Знайти повний текст джерелаLaurin, Jacqueline. Qualité des soins infirmiers: Concepts et évaluation. 3rd ed. Montréal, Qué: Presses de l'Université de Montréal, 1993.
Знайти повний текст джерелаKrebs, Geneviève. Les nouvelles pratiques de l'audit qualité interne. Saint Denis La Plaine: AFNOT, 2003.
Знайти повний текст джерелаIrène, Patrelle, ed. La qualité hospitalière. Paris: Berger-Levrault, 1996.
Знайти повний текст джерелаLétourneau, Guy. Évaluation des variables indicatrices de la qualité des eaux. Montréal, Qué: Centre Saint-Laurent, Conservation de l'environnement, Environnement Canada, 1996.
Знайти повний текст джерелаAzambre, Jacques. Maîtriser une conception de qualité. Paris: Masson, 1992.
Знайти повний текст джерелаHoule, Daniel. Évaluation et bilan du programme de la qualité de l'eau. Sainte-Foy, Qué: Centre Saint-Laurent, Conservation de l'environnement, Environnement Canada région de Québec, 1995.
Знайти повний текст джерелаDurieux, Pierre. Évaluation, qualité, sécurité dans le domaine de la santé: Guide des principaux termes. Paris: Flammarion Médecine-sciences, 1997.
Знайти повний текст джерелаBlondel, Béatrice. Évaluation des soins en obstérique: Pour une pratique fondée sur les preuves. Paris: Masson, 2001.
Знайти повний текст джерелаJonquières, Michel. Manuel de l'audit et des systèmes de management à l'usage des auditeurs et des audités. Saint-Denis-La Plaine (Seine-Saint-Denis): Afnor, 2006.
Знайти повний текст джерелаЧастини книг з теми "Évaluation de la qualité d'image"
Dancausse, Florence, and Élisabeth Chaumat. "Évaluation des transmissions ciblées." In Les transmissions ciblées au service de la qualité des soins, 81–94. Elsevier, 2008. http://dx.doi.org/10.1016/b978-2-294-70181-8.50007-0.
Повний текст джерелаMolinier, F., J. M. Laffosse, F. Paumier, H. Bensafi, and B. Chaminade. "Service médical rendu, évaluation et qualité de vie." In Reprise des prothèses de hanches, 360–75. Elsevier, 2010. http://dx.doi.org/10.1016/b978-2-84299-938-4.00034-7.
Повний текст джерелаTougas, Anne-Marie, and Natalie Kishchuk. "Appuyer l’évaluation sur des données de qualité en faisant un usage rigoureux et pertinent des méthodes existantes." In Évaluation de programme, 63–90. Presses de l'Université du Québec, 2021. http://dx.doi.org/10.2307/j.ctv2s0j528.10.
Повний текст джерелаBourgeois, Louise, and Dany Laveault. "Chapitre 1. Évaluation par les pairs à l’écrit : qualité des rétroactions pour soutenir la phase de révision." In Évaluation et autoévaluation, 99. De Boeck Supérieur, 2015. http://dx.doi.org/10.3917/dbu.ceon.2015.02.0099.
Повний текст джерелаTougas, Anne-Marie, and Natalie Kishchuk. "Appuyer l’évaluation sur des données de qualité en faisant un usage rigoureux et pertinent des méthodes existantes." In Évaluation de programme, 63–89. Presses de l'Université du Québec, 2021. http://dx.doi.org/10.1515/9782760555501-008.
Повний текст джерелаPirard, Florence. "Pour une évaluation participative de la qualité effective de l'accueil." In La qualité de l’accueil : quel défi aujourd'hui ?, 37. ERES, 2010. http://dx.doi.org/10.3917/eres.tholl.2010.01.0037.
Повний текст джерелаLefrère†, Jean-Jacques, and Philippe Rouger. "Qualité, maîtrise des risques et évaluation de la chaîne transfusionnelle." In Transfusion sanguine, 299–325. Elsevier, 2015. http://dx.doi.org/10.1016/b978-2-294-74496-9.00008-8.
Повний текст джерелаLefrère, Jean-Jacques, and Philippe Rouger. "Qualité, maîtrise des risques et évaluation de la chaîne transfusionnelle." In Transfusion sanguine, 261–85. Elsevier, 2011. http://dx.doi.org/10.1016/b978-2-294-71523-5.00008-x.
Повний текст джерелаMonnin, Dominique, and Jean-Paul Janssens. "Évaluation de la qualité de vie chez l'insuffisant respiratoire chronique obstructif." In Kinésithérapie respiratoire, 99–109. Elsevier, 2007. http://dx.doi.org/10.1016/b978-2-84299-836-3.50011-9.
Повний текст джерела"Évaluation de la qualité des données recueillies dans les enquêtes épidémiologiques." In L'épidémiologie sans peine, 161–80. Presses de l'Université du Québec, 2011. http://dx.doi.org/10.2307/j.ctv18pgkrr.24.
Повний текст джерелаТези доповідей конференцій з теми "Évaluation de la qualité d'image"
de Malet, A., PA Laurent, JM Samson, R. Bou-Farah, D. Malka, V. Boige, M. Ducreux, J. Durand-Labrunie, P. Gustin, and P. Burtin. "Pose de fiduciels par écho-endoscopie pour la radiothérapie stéréotaxique des tumeurs pancréatiques: critères de qualité de la pose et évaluation de son innocuité." In Journées Francophones d'Hépato-Gastroentérologie et d'Oncologie Digestive (JFHOD). Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1680930.
Повний текст джерела