Výsledky vyhledávání - "Gilbert Grenier"

Akademický článek

Survey of the accuracy and rapidity of several methods for vine leaf area assessment

Autor: Olivier Trégoat, Nathalie Ollat, Gilbert Grenier, Cornelis van Leeuwen

Publikováno v: OENO One, Vol 35, Iss 1, Pp 31-39 (2001)

Vine leaf area is an important viticultural parameter. Because its assessment is difficult, leaf area is not frequently taken into account. In this survey, several techniques of vine leaf area estimation are compared for their accuracy and rapidity.

Externí odkaz: https://doaj.org/article/74013c1d09664ce69287b4f158d1a340

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Delineation of vine parcels by segmentation of high resolution remote sensed images

Autor: Franck Michelet, Olivier Lavialle, Christian Germain, Gilbert Grenier, Jean Costa

Publikováno v: Precision Agriculture. 8:95-110

Field delineation is an essential preliminary step for the design of management maps for grape production. In this paper, we propose a new algorithm for the segmentation of vine fields based on high-resolution remote sensed images. This algorithm tak

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6a303020b33f4158c684687fff3216a
https://doi.org/10.1007/s11119-007-9031-3

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Role of Gingipains in Growth of Porphyromonas gingivalis in the Presence of Human Serum Albumin

Autor: Pascale Plamondon, Denis Mayrand, Gilbert Grenier, Koji Nakayama, Daniel Grenier, Sandra Imbeault

Publikováno v: Infection and Immunity. 69:5166-5172

Porphyromonas gingivalis , a bacterium associated with active chronic periodontitis lesions, produces several proteolytic enzymes that are thought to be involved in host colonization, perturbation of the immune system, and tissue destruction. The aim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1ab32831672dfe18467e15bfa0e7121
https://doi.org/10.1128/iai.69.8.5166-5172.2001

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Étude comparative de deux méthodes (extraction à l'hexane et RMN) pour la détermination de la teneur en huile d'olives individuelles

Autor: Ryad Bendoula, Jean-Michel Roger, Gilbert Grenier, B. Palagos, Adeline Deblangey

Publikováno v: European Journal of Lipid Science and Technology
European Journal of Lipid Science and Technology, Wiley-VCH Verlag, 2013, 115, pp.1070-1077
European Journal of Lipid Science and Technology, Wiley-VCH Verlag, 2013, 115 (9), pp.1070-1077. ⟨10.1002/ejlt.201200359⟩

The performance of NMR spectroscopy and hexane:isopropanol extraction (HIE) for the determination of oil content in individual olive fruit has been investigated. Both analytical methods, which are based on conventional protocols, have been adapted fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5f010652722d0254ee01f098c0f9c72
https://hal.archives-ouvertes.fr/hal-00984974

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Texture based image retrieval and classification of very high resolution maritime pine forest images

Autor: Gilbert Grenier, Lionel Bombrun, Christian Germain, Olivier Regniers, J.P. Da Costa

Publikováno v: IGARSS

Textural analysis can bring valuable information in the classification or the segmentation process of land covers displaying regular patterns in very high resolution remotely sensed images. In this study, we investigate how features extracted by mult

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17f081c380f6c9e7f46b68d2c193a624
https://hal.archives-ouvertes.fr/hal-00878727

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Texture, color and frequential proxy-detection image processing for crop characterization in a context of precision agriculture

Autor: Gilbert Grenier, Olivier Lavialle, Frédéric Cointault, Nathalie Gorretta, Ludovic Journaux, David Ooms, Marie-France Destain, Gilles Rabatel, Ambroise Marin, Christian Germain

Publikováno v: Agricultural Science
Agricultural Science, InTech, p. 49-p. 70, 2012
Agricultural Science, InTech, p. 49-p. 70, 2012, 9789535105671

Le concept d’agriculture de précision consiste à gérer spatialement les pratiques culturales en fonction des variabilités intra-parcellaires. La plupart des outils associés utilisent des capteurs optiques ou imageurs. L’imagerie aérienne es

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d587ab4ba18a96db8f01eb3455fcc2c
https://hal.archives-ouvertes.fr/hal-00751478/document

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Abundance weighting for improved vegetation mapping in row crops. Application to vineyard vigour monitoring

Autor: Saeid Homayouni, Gilbert Grenier, Olivier Lavialle, C. Van Leeuwen, Christian Germain, J.P. Da Costa, Jean-Pascal Goutouly

Publikováno v: Canadian Journal of Remote Sensing
Canadian Journal of Remote Sensing, Canadian Aeronautics, 2008, 34 (Suppl. 2), pp.S228-S239
Canadian Journal of Remote Sensing, Canadian Aeronautics, 2008, 34, pp.S228-S239
Scopus-Elsevier

International audience; We present a complete framework for vigour mapping in row crops by multispectral remote sensing. The main contribution consists of taking into account vegetation abundance in the computation of vigour indexes. Though developed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ec896095d0045c4a91ff85d0007d831
https://hal.archives-ouvertes.fr/hal-00345557

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Non Destructive Counting of Wheatear with Picture Analysis

Autor: Gilbert Grenier, R. Rousseaud, Christian Germain

Publikováno v: Scopus-Elsevier

Many researchers, notably Schueller (1992) or Stafford et al. (1994), are working on the variability of cultivation (especially cereals) and inputs. In an agricultural parcel (supposed to be homogeneous) yield levels vary considerably from one place

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d54c3da20b88454cc47ae8f9268f950
https://hal.archives-ouvertes.fr/hal-00326758

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