Search results for "methodologies"
showing 10 items of 2106 documents
Bilingual panels: a tool to evaluate the role of language in descriptive tasks
2013
Cross cultural studies relating sensory profiles established in different countries suggest that part of the observed cultural differences might be due to language. Indeed, participants in cross cultural studies often have different food experiences as well as different languages and so the effects of language and cultures cannot be easily separated. A way to separate these effects is to work with bilingual assessors. Madagascar is a good candidate to perform such a study as two languages coexist in this country: Malagasy and French. Four flash profiles were performed to evaluate six samples of Moringa oleifera leaf powders: two in French and two in Malagasy. The descriptors generated by the…
A 3-D simulation with virtual stereo rig for centrifugal fertilizer spreading
2012
International audience; Stereovision can be used to characterize of the fertilizer centrifugal spreading process and to control the spreading fertilizer distribution pattern on the ground reference. Fertilizer grains, however, resemble each other and the grain images contain little information on texture. Therefore, the accuracy of stereo matching algorithms in literature cannot be used as a reference for stereo images of fertilizer grains. In order to evaluate stereo matching algorithms applied to images of grains a generator of synthetic stereo particle images is presented in this paper. The particle stereo image generator consists of two main parts: the particle 3D position generator and…
Multi-modal image fusion for small animal studies in in-line PET /3T MRI
2015
Congrès sous l’égide de la Société Française de Génie Biologique et Médical (SFGBM).; National audience; In the framework of small animal multi-modal imaging, the current progression of the IMAPPI project is illustrated by the design of an in-line PET/MRI prototype, coupled to a dedicated multi-resolution registration method allowing the robust fusion of data coming from both modalities. The first results show a good alignment of the data from tumor imaging at the level of the abdomen.
The dead do not dress: contribution of forensic anthropology experiments to burial practices analysis
2012
International audience; The specific question of clothing presence in burial context is often answered positively, thanks to artifacts like brooches for example. But when artefacts are missing, the task is more difficult, and frequent osteological arguments can only suggest the presence of clothing with the deceased. The gap in determining the presence of clothing is essentially related to a misunderstanding of the effect of clothing on the rate of human decomposition, and thus on the final arrangement of bones (in both forensic and archaeological contexts). Some forensic experiments have been conducted in this regard (essentially in the United States) but no synthesis or archaeological app…
Analysis of georeferenced landscape pictures extracted from public picture collections
2019
National audience; Today photo-sharing websites allow citizen to share their pictures. Pictures taken by sensor-equipped devices such as smartphones or tablet-computers keep the information where (in terms of coordinates and azimuth angle), when and with which device a picture has been taken.We have developed a method that uses the coordinates of the camera position as well as the azimuth angle, the focal length and the crop factor in order to calculate a 3D field of view of a picture using a digital terrain model (DTM). This field of view can thereafter be used for the determination of interest in spatial features. Similar methods that are based on viewsheds have been described by Tenerell…
Guide pour l'ergonomie des interfaces homme-machine
1998
Rapport de contrat Bull INRIA; Spécifications ergonomiques pour la conception des interfaces logicielles Bull
Quelques paradoxes du corpus saussurien : le « psychologisme » de Saussure à l’« âge psychologique » des sciences humaines
2021
Conférence en ligne (Zoom); International audience; No abstract
A Continuous Time Pattern Recognition Retina
2002
International audience; We present in this paper a pattern recognition retina operating in continuous time. During a programming phase, the reference image is acquired by the sensor. After thresholding, the resulting binary image is stored in the sensor's pixels. During the recognition phase, the retina calculates, in an analog way and in continuous time, the zero displacement intercorrelation of the current image with the binary reference image and its complement. These two intercorrelation values are output as currents. By comparing these currents to expected values, determined during the programming phase, a shift of the pattern or a difference between the observed and programmed pattern…
Optimal Gabor Filters and Haralick Features for Industrial Polarization Imaging
2011
International audience; During the past decade, computer vision methods for inline inspection became an important tool in a lot of industrial processes. During the same time polarization imaging techniques rapidly evolved with the development of electro-optic components, as e.g. the polarization cameras, now available on the market. This paper is dedicated to the application of polarization techniques for visually inspecting complex metallic surfaces. As we will shortly recall, this consists of a direct image interpretation based on the measurement of the polarization parameters of the light reflected by the inspected object. The proposed image interpretation procedure consists of a Gabor p…
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…