Search results for "RECOGNITION"
showing 10 items of 3607 documents
Recherche de récepteurs de l’immunité des plantes et étude de l’impact de biostimulants sur leur expression et la résistance induite chez des organes…
2021
National audience; La stimulation des défenses immunitaires des plantes représente une stratégie durable deprotection des cultures qui pourrait permettre de réduire l’utilisation de pesticides chimiquesencore trop répandue en viticulture. Son principe réside en l’application, au contact des cellulesvégétales, de molécules élicitrices détectées comme des signaux de danger par la plante. Cessignaux de dangers peuvent être de différente nature et origine comme par exemple la chitine,un chito-oligosaccharide (COS) retrouvé dans les parois fongiques. Leur détection par desrécepteurs de l’immunité entraine une cascade de signalisation complexe, conduisant àl’activation de réactions de défense et …
Impression 3D et propriété intellectuelle: Un aperçu français
2019
Technological developments and the expiry of patents in three-dimensional printing are making this technology less and less expensive and with increased performance. Now widespread in the manufacturing industry, 3D printing is about to cross the threshold of our homes. The dematerialization of objects into exchangeable digital files raises many questions about the enforcement of intellectual property rights in French Law.
Entre communauté et multitude : une approche communicationnelle de l’instrumentalisation de la reconnaissance au sein de l’économie collaborative
2019
Cet article vise à comprendre une tension existante entre deux formes collectives travaillant l’idéal collaboratif : la communauté et la multitude. En nous appuyant sur l’exemple des plateformes de l’économie collaborative, nous souhaitons montrer que de valorisation économique des interactions nécessite, au-delà des rationalisations algorithmiques, une instrumentalisation des logiques de reconnaissance par les community managers. This article aims at understanding the tension between two collective forms attached to the online collaboration ideal: community and multitude. Through the example of collaborative economy platforms, we wish to show that the objective in economical development of…
Photometric Gaussian Mixtures for Direct Virtual Visual Servoing of Omnidirectional Camera
2021
International audience
Comparison of RK and confidence judgement ROCs in recognition memory.
2011
author cannot archive publisher's version/PDF; International audience; Several indicators have been used to differentiate familiarity and recollection processes. One dualist theory stipulates that it is possible to decide whether memories come from a feeling of knowing or from a conscious retrieval of the encoding and storage conditions (remembering). Another dualist theory is based on an indirect estimation of familiarity and recollection via the subjective confidence associated with recognition responses, and from an analysis of the derived receiver operating characteristics (ROC). In the present study, participants were presented with target words or faces that they subsequently had to r…
Multi-Scale Feature Extraction for Vehicle Detection Using Phis-Lbp
2018
International audience; Multi-resolutionobjectdetectionfacesseveraldrawbacksincludingitshighdimensionalityproducedby a richer image representation in different channels or scales. In this paper, we propose a robust and lightweight multi-resolution method for vehicle detection using local binary patterns (LBP) as channel feature. Algorithm acceleration is done using LBP histograms instead of multi-scale feature maps and by extrapolating nearby scales to avoid computing each scale. We produce a feature descriptor capable of reaching a similar precision to other computationally more complex algorithms but reducing its size from 10 to 800 times. Finally, experiments show that our method can obt…
Towards automated and operational forest inventories with T-Lidar
2011
International audience; Forest inventory automation has become a major issue in forestry. The complexity of the segmentation of 3D point cloud is due to mutual occlusion between trees, other vegetation, or branches. That is why, the applications done until now are limited to the estimation of the DBH (Diameter at Breast Height), the tree height and density estimation. Furthermore other parameters could also be detected, such as volume or species of trees (Reulke and Haala) . . . This paper presents an effective approach for automatic detection, isolation of trees and DBH estimation. Tree isolation is achieved using an innovative approach based on a clustering methodology followed by a skele…
A Framework for Mesh Segmentation and Annotation using Ontologies
2015
International audience; Mesh segmentation and annotation using semantics has received an increased interest with the recent democratisation of 3D reconstruction methods. The common approach is to perform this task in two steps, by first segmenting the mesh and then annotating it. However, this approach does not allow one part to take advantage of the other. In image processing, some methods are combining segmentation and annotation, but they are not generic and require implementation adjustments or rewritings for each modification of the expert knowledge. In this work, we describe an original framework that mixes segmen-tation and annotation while minimizing the required geometric analysis …
Discriminating and simulating actions with the associative self-organising map
2015
We propose a system able to represent others’ actions as well as to internally simulate their likely continuation from a partial observation. The approach presented here is the first step towards a more ambitious goal of endowing an artificial agent with the ability to recognise and predict others’ intentions. Our approach is based on the associative self-organising map, a variant of the self-organising map capable of learning to associate its activity with different inputs over time, where inputs are processed observations of others’ actions. We have evaluated our system in two different experimental scenarios obtaining promising results: the system demonstrated an ability to learn discrim…
Going in Homer: The Role of Verb-Inherent Actionality Within Self-Propelled Motion-Event Encoding
2019
The paper aims at investigating the encoding of self-propelled motion events in Homeric Greek in the light of the typology of motion events, taking into account the case of to go. The verbal class of the self-propelled motion refers to those verbs expressing the idea of a simple translational motion, such as to go, to move, without any information about the manner of motion (see, by contrast, the class of the manner-of-motion verbs, such as to run, to swim) or about the path of motion (see, by contrast, the class of the path verbs, such as to enter, to exit). According to Talmy (2000), world languages can be distinguished depending on whether they prototypically express the semantic compone…