Potential use of ground-based sensor technologies for weed detection

Peteinatos, Gerassimos G.; Weis, Martin; Andújar, Dionisio; Ayala, Victor Rueda; Gerhards, Roland

doi:10.1002/ps.3677

Cited by 98 publications

(72 citation statements)

References 90 publications

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“…For example, it is common for new populations of H. hirta, E. curvula, and especially Nassella spp., which are morphologically similar to Australian native Themeda, Cymbopogon, Poa, and Austrostipa species, to go unrecognised for many years. Remote sensing techniques viable for identifying grasses, while promising (Peteinatos et al 2014), are still in only early stages of development, and not yet widely deployed. At a broader scale, many NNGs (e.g., Themeda quadrivalvis, Cenchrus polystachios, Echinochloa polystachya) remain outside the scope of legislation or scientific research when numbers are small and control efforts would be most effective.…”

Section: The Management Challengementioning

confidence: 99%

Why non-native grasses pose a critical emerging threat to biodiversity conservation, habitat connectivity and agricultural production in multifunctional rural landscapes

et al. 2017

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Context Landscape-scale conservation planning is key to the protection of biodiversity globally. Central to this approach is the development of multifunctional rural landscapes (MRLs) that maintain the viability of natural ecosystems and promote animal and plant dispersal alongside agricultural land uses. Objectives We investigate evidence that non-native grasses (NNGs) in rangelands and other low-intensity agricultural systems pose a critical threat to landscape conservation initiatives in MRLs both in Australia and globally.Methods We first establish a simple socio-ecological model that classifies different rural landscape elements within typical MRLs based on their joint conservation and agro-economic value. We then quantify the impacts of eight Australian NNGs (Andropogon gayanus, Cenchrus ciliaris, Eragrostis curvula, Hyparrhenia hirta, Nassella neesiana, Nassella trichotoma, Phalaris aquatica and Urochloa mutica) on different landscape elements and then classify and describe the socio-ecological transformations that result at the MRL scale. Results Our data indicate that two broad classes of NNGs exist. The first reduces both conservation and agro-economic value ('co-degrading' species) of invaded landscapes, while the second improves agroeconomic value at the expense of conservation value ('trade-off' species). Crucially, however, both classes cause hardening of the landscape matrix, agricultural intensification, reduced habitat connectivity, and the loss of multi-value land use types that are vital for landscape conservation. Conclusions NNGs drive socio-ecological transformations that pose a growing threat to landscape-scale connectivity and conservation initiatives in Australia and globally. There is an urgent need for further research into the impacts of NNGs on habitat connectivity and biodiversity within multifunctional landscapes, and the socio-ecological goals that can be achieved when landscape transformation and degradation by these species is unavoidable.Electronic supplementary material The online version of this article

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Section: The Management Challengementioning

confidence: 99%

Why non-native grasses pose a critical emerging threat to biodiversity conservation, habitat connectivity and agricultural production in multifunctional rural landscapes

et al. 2017

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“…Er zijn overigens wel ontwikkelingen gaande waardoor de resolutie van beelden verkregen met satellieten of drones steeds hoger wordt. De sensoren identificeren planten aan de hand van hun optische of beeld karakteristieken (Peteinatos et al, 2014). Optische sensoren zoals een spectrometer, meet de reflectie van een plant bij verschillende golflengtes van het zichtbare en nabij infra rode licht.…”

Section: Reductie Van Het Gebruik Tot Minimale Niveausunclassified

“…Een voorbeeld hiervan is te vinden in Figuur 1 in (Peteinatos et al, 2014). In het geval van een spectrofotometer als sensor, wordt een index van de spectrale data berekend om een onderling vergelijk van plantensoorten en omgeving te vergemakkelijken (Peteinatos et al, 2014). Een voorbeeld van een index is de Normalized Difference Vegetation Index (NDVI).…”

Section: Reductie Van Het Gebruik Tot Minimale Niveausunclassified

Geïntegreerde bestrijding van knolcyperus : Resultaten van een literatuurstudie naar alternatieven voor monam

Riemens¹,

Schimmels²,

Huiting³

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“…Optical distortions caused by the objective affect the outer part of the image, although they can be ignored for this application. The image will also be used for additional image processing applications [21], with a higher quality lens used in practice.…”

Section: Cross-correlationmentioning

confidence: 99%

Precise Navigation of Small Agricultural Robots in Sensitive Areas with a Smart Plant Camera

2015

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Most of the relevant technology related to precision agriculture is currently controlled by Global Positioning Systems (GPS) and uploaded map data; however, in sensitive areas with young or expensive plants, small robots are becoming more widely used in exclusive work. These robots must follow the plant lines with centimeter precision to protect plant growth. For cases in which GPS fails, a camera-based solution is often used for navigation because of the system cost and simplicity. The low-cost plant camera presented here generates images in which plants are contrasted against the soil, thus enabling the use of simple cross-correlation functions to establish high-resolution navigation control in the centimeter range. Based on the foresight provided by images from in front of the vehicle, robust vehicle control can be established without any dead time; as a result, off-loading the main robot control and overshooting can be avoided.

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Potential use of ground-based sensor technologies for weed detection

Cited by 98 publications

References 90 publications

Why non-native grasses pose a critical emerging threat to biodiversity conservation, habitat connectivity and agricultural production in multifunctional rural landscapes

Why non-native grasses pose a critical emerging threat to biodiversity conservation, habitat connectivity and agricultural production in multifunctional rural landscapes

Geïntegreerde bestrijding van knolcyperus : Resultaten van een literatuurstudie naar alternatieven voor monam

Precise Navigation of Small Agricultural Robots in Sensitive Areas with a Smart Plant Camera

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