Search results for "video"
showing 10 items of 1348 documents
hidden markov random fields and cuckoo search method for medical image segmentation
2020
Segmentation of medical images is an essential part in the process of diagnostics. Physicians require an automatic, robust and valid results. Hidden Markov Random Fields (HMRF) provide powerful model. This latter models the segmentation problem as the minimization of an energy function. Cuckoo search (CS) algorithm is one of the recent nature-inspired meta-heuristic algorithms. It has shown its efficiency in many engineering optimization problems. In this paper, we use three cuckoo search algorithm to achieve medical image segmentation.
3D landmark detection for augmented reality based otologic procedures
2019
International audience; Ear consists of the smallest bones in the human body and does not contain significant amount of distinct landmark points that may be used to register a preoperative CT-scan with the surgical video in an augmented reality framework. Learning based algorithms may be used to help the surgeons to identify landmark points. This paper presents a convolutional neural network approach to landmark detection in preoperative ear CT images and then discusses an augmented reality system that can be used to visualize the cochlear axis on an otologic surgical video.
Advanced 3D movement analysis algorithms for robust functional capacity assessment.
2017
SummaryObjectives: We developed a novel system for in home functional capacities assessment in frail older adults by analyzing the Timed Up and Go movements. This system aims to follow the older people evolution, potentially allowing a forward detection of motor decompensation in order to trigger the implementation of rehabilitation. However, the pre-experimentations conducted on the ground, in different environments, revealed some problems which were related to KinectTM operation. Hence, the aim of this actual study is to develop methods to resolve these problems.Methods: Using the KinectTM sensor, we analyze the Timed Up and Go test movements by measuring nine spatio-temporal parameters, …
Design of a Real-time face detection parallel architecture using High-Level Synthesis
2008
Abstract We describe a High-Level Synthesis implementation of a parallel architecture for face detection. The chosen face detection method is the well-known Convolutional Face Finder (CFF) algorithm, which consists of a pipeline of convolution operations. We rely on dataflow modelling of the algorithm and we use a high-level synthesis tool in order to specify the local dataflows of our Processing Element (PE), by describing in C language inter-PE communication, fine scheduling of the successive convolutions, and memory distribution and bandwidth. Using this approach, we explore several implementation alternatives in order to find a compromise between processing speed and area of the PE. We …
Refitting solutions promoted by $\ell_{12}$ sparse analysis regularization with block penalties
2019
International audience; In inverse problems, the use of an $\ell_{12}$ analysis regularizer induces a bias in the estimated solution. We propose a general refitting framework for removing this artifact while keeping information of interest contained in the biased solution. This is done through the use of refitting block penalties that only act on the co-support of the estimation. Based on an analysis of related works in the literature, we propose a new penalty that is well suited for refitting purposes. We also present an efficient algorithmic method to obtain the refitted solution along with the original (biased) solution for any convex refitting block penalty. Experiments illustrate the g…
La microbiologie des sols au service de la production agricole. Agrowebinaires Agreenium en partenariat avec ACTA. Video YouTube.
2021
Les agrowebinaires du mardi : un nouveau cycle en partenariat avec l’Acta Les agrowebinaires du mardi : un nouveau cycle en partenariat avec l’Acta. Agreenium en partenariat avec l’ACTA-les instituts techniques agricoles, propose un cycle de webinaires à destination de professionnels, mais aussi d’enseignants et d’étudiants, sur des sujets porteurs d’innovation, sur deux thématiques, l'agroécologie et l'agriculture numérique. A partir d’un échange entre un chercheur, un praticien et un enseignant sur un sujet donné, chacun pourra s'informer sur de nouveaux savoirs produits et sur leur mise en œuvre dans la pratique. Video du 15 juin, avec Lionel Ranjard (directeur de recherche INRAE), Matth…
Reportage chaine You tube " Tous Terriens" Arte, "Situation d'impasse en agriculture de conservation"
2020
« Arrêt du glyphosate : les alternatives en Agriculture de conservation des sols », sur Tous Terriens
Reportage chaine You tube " Tous Terriens" Arte, sur l'exploitation de l'agriculteur Alain Krebs, à Suilly-la-Tour, avec les interventions de Stéphan…
2020
« Arrêt du glyphosate : les alternatives en Agriculture de conservation des sols », sur Tous TerriensLes expérimentations conduites au sein de la plateforme CA-SYS et dans le réseau de ses agriculteurs partenaires pour tester les alternatives au glyphosate sont mises à l’honneur dans ce reportage signé du journaliste Pierre Girard (Xenius, sur Arte) pour sa chaîne YouTube « Tous Terriens ».Voir ici le reportage sur l'exploitation de l'agriculteur Alain Krebs, à Suilly-la-Tour, avec les interventions de Stéphane Cordeau sur la plateforme CA-SYS, à Bretenière.
'Social Food' video techniques: Their ambiguous role in making healthy food attractive
2019
International audience
'Social Food' video techniques: Their ambiguous role in making healthy food attractive
2018
International audience