Search results for "Image"
showing 10 items of 6818 documents
A new system for watermarking based on the turbo-codes and wavelet 5/3
2012
International audience; In order to contribute to the security, transmission and sharing of medical data between hospital centers, we propose a watermarking scheme for hiding medical information, specific to the patient, in the host image. In this regard, the watermark consists of inserting data (usually binary data) in media (image in our case) and try to find these data with maximum fidelity, after applying various attacks. The principal goal of our proposal is the conservation of psychovisual quality of the image, on the one hand, and the extraction of the different data inserted in another side The robustness of the proposed scheme is tested against various attacks such as JPEG compress…
European Programs and their Extension in the field of Computer Vision, Color and Robotics
2010
International audience; Over the last 4 years, the University of Burgundy (uB) has intensified its international oriented actions in the field of Computer Vision and Robotics through further development of the educational network, partnerships, programs and communication. The creation of European programs, such as the Erasmus Mundus program and the Thematic Networks (Life Long Learning) allowed us to develop new programs, building up valuable academic and project administration experience as well as developing new actions for incoming foreign students. In this paper we describe some of our activities and those of the University of Saint Etienne (UJM) and University of Genova (UNIGE), and th…
A Watermarking of Medical Image: Method Based "LSB"
2011
International audience; In this paper, we present a new approach for watermarking of medical image that we are trying to adapt to telemedicine. This approach is intended to insert a set of data in a medical image. These data should be imperceptible and robust to various attacks. It's containing the signature of the original image, the data specific to the patient and his diagnostic. The purpose of the watermarking method is to check the integrity and preservation of the confidentiality of patient data in a network sharing. This approach is based on the use the LSB (least significant bits) of the image and tools borrowed from cryptography.
Méthode de "Multicouches" Pour le Tatouage des Images Médicales
2012
International audience; Dans le but de contribuer á la sécurité du partage, au transfert et á l'indexation des images médicales, on a mis en œuvre une nouvelle approche de tatouage. Cette approche se base sur l'utilisation de diverses techniques tels que la technique du Code Division Multiple Access (CDMA), de la Transformation en Ondelette Discrète (TOD), des Codes Correcteurs d'Erreurs (CCE) et de la fonction de hachage (MD5),... Le but de notre contribution étant d'augmenter le taux d'intégration tout en conservant l'aspect visuel de l'image d'une part et de détecter et même corriger les différentes altérations qui peuvent avoir lieu de l'autre part. Cette approche sera testé sur des ima…
A Machine Learning Approach for Computer-Aided Detection of Cerebral Microbleed Using High-order Shape Features
2014
International audience; This paper presents a novel machine learning approach for computer-aided detection of microbleeds in SWI. The major contributions are: identifying microbleed extent in order to extract proper cubic regions-of-interest (ROI) containing the structure, (2) extracting a set of robust 3- dimensional (3D) Radon- and Hessian-based shape descriptors within the ROIs as well as 2D Radon features computed on intensity-projection images of the corresponding ROIs, and (3) incorporating a cascade of random forests (RF) classifiers to iteratively reduce false detection rates while maintaining a high sensitivity.
Traitement linéaire du signal numérique
1998
International audience; Le signal numérique et son traitement sont devenus des thématiques majeures des Sciences pour l'Ingénieur depuis que les progrès de l'électronique numérique programmée ont rejeté de plus en plus loin les contraintes de bande passante et de période d'échantillonnage.Cet ouvrage propose de considérer le signal numérique et son traitement comme un ensemble cohérent indépendant de l'analyse du signal continu. Ce point de vue a l'avantage pédagogique de la simplicité de l'approche. Les mathématiques nécessaires restent élémentaires et la présentation des principaux concepts et techniques de traitement ne requiert qu'un niveau Bac scientifique ou technologique. De nombreux…
Sampling CIELAB color space with perceptual metrics
2016
International audience
Apport du variogramme dans la classification d'images satellitaires radar RSO,
2012
International audience
An inverse tone mapping method for displaying images on HDR monitor
2013
International audience
Multispectral endoscopy to identify precancerous lesions in gastric mucosa (Orale)
2014
International audience