Search results for "Drone"
showing 10 items of 122 documents
Capteurs et images aériennes pour l’évaluation du peuplement de mauvaises herbes
2013
AIRINOV is specialized in use of UAV for precision agriculture. Thanks to a high spatial resolution up to 1.5 cm/pixel in RGB images, discrimination between vegetation (crop row, weed) and soil can be done. Variability can be detected in weed density inside the whole field. The detection of weeds in the inter-row of hoed row crops was tested on RGB images. The methodology developed is based on Hough transform, and is composed of three main steps: image segmentation, soil/vegetation discrimination and crop rows localization. First results are promising but need complementary measures for validation.
Pulvérisation ciblée sur les tâches d’adventices détectées par drône en colza
2019
L’idée de cartographier les zones infestées par les adventices pour restreindre la surface traitée, et donc les quantités d’herbicides utilisées, méritait d’être testée. Depuis l’acquisition des données par drone, en passant par le traitement des images, jusqu’à l’exploitation de la carte par le pulvérisateur au champ. C’est pourquoi, Terres Inovia a décidé de collaborer avec AIRINOV pour conduire un essai sur colza en vue de la pulvérisation ciblée sur les tâches d’adventices détectées préalablement par drone. Cette étude exploratoire avait pour objectif de vérifier l’intérêt, la faisabilité, la pertinence et l’efficacité d’une telle technique. Elle s’inscrit dans le projet européen H2020 …
Proxi-détection des adventices par imagerie aérienne
2014
Analyse des mécanismes impliqués dans la détection automatisée des adventices
2017
EASPEGESTADAGROSUP; L’objectif est de développer des systèmes de proxidétection embarqués sur différentes plateformes aérienne (drone) ou terrestre (robot) dédiés, entre autre, à l’identification et la localisation d’adventices pour établir des cartes de présence d'adventices afin de mettre en oeuvre le désherbage chimique localisé. L’étude présente les premiers résultats obtenus par le drone d’AIRINOV dont la problématique est d’étudier le potentiel de l’imagerie aérienne pour la détection d’adventices. Deux approches ont été étudiées.
Uccisioni mirate, legittima difesa preventiva e diritti umani
2018
Targeted killings by drones on the territory of other States has increasingly become the US Administration’s weapon of choice in the war against terrorism. According to the US, these operations constitute a justified use of self-defensive force «against terrorists who pose a continuing and imminent threat to the American people» (Remarks by the President at the National Defense University, 23 May 2013, www.whitehouse.gov). The aim of the present article is to assess the validity of this justification under both ius ad bellum and international human rights law. To this end, Section 1 introduces the arguments advanced by the US Administration. Section 2 explores the admissibility of anticipat…
Droni a Sigonella: quale valore ha (e quale impatto produrrà) l’accordo italo-americano?
2016
The contribution deals with the existing practice of the US to employ armed drones for counter-terrorism operations from the military base located in Sigonella, Italy. The implications for international law and domestic law are explored.
Omicidi mirati a mezzo drone: brevi riflessioni a margine del caso "Lo Porto" tra diritto penale e diritto internazionale
2018
Quale diritto penale in ipotesi di "vittime collaterali" di drone strike? La sempre maggiore rilevanza che il fenomeno degli omicidi mirati a mezzo drone assume nel contesto internazionale pone la necessità di interrogarsi su come, nell'ordinamento interno, le categorie classiche del diritto penale debbano operare rispetto a fattispecie "peculiari", caratterizzate da una distanza fisica e psichica dal target e dall’esistenza di una “catena di comando” coinvolta, a più livelli, nella singola operazione di omicidio mirato. Si cercherà pertanto di capire, partendo dal caso dell'omicidio di un cittadino italiano per mezzo di droni statunitensi in Pakistan, ma fornendo un contributo di portata p…
Estimating Tree Health Decline Caused by Ips typographus L. from UAS RGB Images Using a Deep One-Stage Object Detection Neural Network
2022
Various biotic and abiotic stresses are causing decline in forest health globally. Presently, one of the major biotic stress agents in Europe is the European spruce bark beetle (Ips typographus L.) which is increasingly causing widespread tree mortality in northern latitudes as a consequence of the warming climate. Remote sensing using unoccupied aerial systems (UAS) together with evolving machine learning techniques provide a powerful tool for fast-response monitoring of forest health. The aim of this study was to investigate the performance of a deep one-stage object detection neural network in the detection of damage by I. typographus in Norway spruce trees using UAS RGB images. A Scaled…
Induction of heat-shock (stress) protein gene expression by selected natural and anthropogenic disturbances in the octocoral Dendronephthya klunzinge…
2000
Previously it was found that the expression of selected heat-shock proteins is upregulated in corals after exposure to elevated temperature. We published that HSPs are suitable markers in sponges to monitor the degree of environmental stress on these animals. In the present study the heat-shock proteins (HSPs) with a molecular weight of 90 kDa have been selected to prove their potential usefulness as biomarkers under controlled laboratory conditions and in the field. The studies have been performed with the octocoral Dendronephthya klunzingeri from which the cDNA coding for HSP90 was cloned first. The expression of the HSP90 gene is upregulated by thermal stress; treatment of the animals fo…