Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Christian Germain"'
Autor:
Florian Rançon, Barna Keresztes, Aymeric Deshayes, Malo Tardif, Florent Abdelghafour, Gael Fontaine, Jean-Pierre Da Costa, Christian Germain
Publikováno v:
Sensors, Vol 23, Iss 2, p 847 (2023)
The potential of image proximal sensing for agricultural applications has been a prolific scientific subject in the recent literature. Its main appeal lies in the sensing of precise information about plant status, which is either harder or impossible
Externí odkaz:
https://doaj.org/article/f4e0488a04514a7aa82e459b9c4c66da
Autor:
Florent Abdelghafour, Barna Keresztes, Aymeric Deshayes, Christian Germain, Jean-Pierre Da Costa
Publikováno v:
Data in Brief, Vol 37, Iss , Pp 107250- (2021)
This article introduces a dataset of high-resolution colour images of grapevines. It contains 99 images acquired in the vineyard from a cruising tractor. Each image includes the full foliage of a grapevine plant. These images display a diverse range
Externí odkaz:
https://doaj.org/article/ce09f929226d4ea7aa9e3a35dcf38622
Autor:
Maroua Nouri, Nathalie Gorretta, Pierre Vaysse, Michel Giraud, Christian Germain, Barna Keresztes, Jean-Michel Roger
Publikováno v:
Data in Brief, Vol 16, Iss , Pp 967-971 (2018)
This dataset presents two series of hyperspectral images of healthy and infected apple tree leaves acquired daily, from two days after inoculation until an advanced stage of infection (11 days after inoculation). The hyperspectral images were calibra
Externí odkaz:
https://doaj.org/article/e871d1111e774b4c957c7fc244a90e21
Publikováno v:
Remote Sensing, Vol 12, Iss 20, p 3292 (2020)
Remote sensing image scene classification, which consists of labeling remote sensing images with a set of categories based on their content, has received remarkable attention for many applications such as land use mapping. Standard approaches are bas
Externí odkaz:
https://doaj.org/article/b3d5a766f29d44af8f3dc2b5b0b5f5f1
Publikováno v:
Sensors, Vol 20, Iss 16, p 4380 (2020)
This paper proposes to study the potentialities of on-board colour imaging for the in-field detection of a textbook case disease: the grapevine downy mildew. It introduces an algorithmic strategy for the detection of various forms of foliar symptoms
Externí odkaz:
https://doaj.org/article/1cca92cc300644e3b531e5f887665512
Publikováno v:
Remote Sensing, Vol 11, Iss 1, p 1 (2018)
Grapevine wood fungal diseases such as esca are among the biggest threats in vineyards nowadays. The lack of very efficient preventive (best results using commercial products report 20% efficiency) and curative means induces huge economic losses. The
Externí odkaz:
https://doaj.org/article/27ab90f0895842f0b142342ce2f1a2d9
Publikováno v:
Image Analysis and Stereology, Vol 22, Iss 1, Pp 35-42 (2011)
A new deformable model based on the use of a particle system is introduced. By defining the local behavior of each particle, the system behaves as an active contour model showing a variable topology and regularization properties. The efficiency of th
Externí odkaz:
https://doaj.org/article/ee881fd3b5b74904b18d9b30c28645ce
Autor:
Christian Germain, Rémy Blanc, Marc Donias, Olivier Lavialle, Jean-Pierre Da Costa, Pierre Baylou
Publikováno v:
Image Analysis and Stereology, Vol 24, Iss 3, Pp 127-134 (2011)
This paper discusses two new image analysis methods for estimating the elevation angle of the section plane of a material. These methods are applicable to materials such as nickel base superalloys, the microstructure of which shows cubes arranged on
Externí odkaz:
https://doaj.org/article/bdd3d5cb75a045a997c8c6af18887407
Autor:
Christelle Barbey, Jérôme Helbert, Arnaud Jaën, Elodie Pagot, Jean-Charles Samalens, Lilian Valette, Christian Germain, Dominique Guyon, Jean-Pierre Wigneron
Publikováno v:
Revue Française de Photogrammétrie et de Télédétection, Iss 208 (2014)
Une étude comparative entre des acquisitions Pléiades et par drone a été menée pour des applications de viticulture de précision dans la région Aquitaine, sur le vignoble de Buzet et deux domaines du Bordelais. Cette étude montre une bonne co
Externí odkaz:
https://doaj.org/article/75ad59f2cbb24d5787338988dc59979c
Publikováno v:
Revue Française de Photogrammétrie et de Télédétection, Iss 208 (2014)
Cette étude évalue le potentiel des modèles de texture SIRV sur ondelettes pour la détection de parcelles viticoles dans les images à très haute résolution de type PLEIADES et compare les performances de ces modèles avec des méthodes de réf
Externí odkaz:
https://doaj.org/article/6a20912d16bc48259a9b40a6f21db2e2