Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Proximal sensing"”.
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Utilisation of Proximal Sensing Technology to Map Variability in Ontario Vineyards
… study was to determine whether high resolution proximally sensed observations acquired by the GreenSeeker™ technology could be correlated with soil moisture, vine water status, yield components and grape composition, and whether temporally consistent relationships could be established. The …
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Site-Specific In-Season Nitrogen Management Using Drone Multispectral Imagery And Proximal Sensing
… was to assess the ability of in-season remote sensing-based variable rate nitrogen (VRN) to detect nitrogen stress in rainfed corn in Minnesota and its ability to provide timely information to correct corn N deficiency and therefore improve both the agronomic and environmental efficiency of …
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Assessment of the spatial variability of vegetative status in vineyards using non-destructive sensors: Application of remote and proximal sensing technologies in precision viticulture
… not feasible. For this purpose, remote and proximal sensing techniques could be useful for monitoring the vineyards in a reliable, fast and non-destructive way. Objectives: The aim pursued by this research was to assess the spatial and temporal variability of the vegetative status of a …
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Soil Carbon Assessment: Confronting Climate Change on the Farm
… and whole profile SOC stocks via remote and proximal sensing.
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Development of hay yield monitoring systems
… principles. Previous research on using proximal and remote sensing for hay yield estimation has shown promise but faces several limitations. These include low accuracy in mixed species or low-density crops and in heterogeneous field conditions. Challenges also arise in selecting optimal …
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RGB and NIR Image Registration for Proximal Multiband Imaging
… are especially pronounced in close-to-ground proximal sensing platforms where the RGB and NIR sensors are separated by a baseline distance. This thesis addresses these challenges by first identifying a set of similarity metrics capable of quantifying spatial misalignment in RGB/NIR image …
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Characterization of soils via portable X-ray fluorescence spectrometer
… x-ray fluorescence (PXRF) spectrometry is a proximal sensing technique which provides elemental data in-situ, in seconds. This study examined the potential of using PXRF for soil pH and CEC prediction, using a diverse set of soil samples. The use of PXRF spectrometry for pH determination was …
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3D SENSING APPROACHES FOR PRECISION AGRICULTURE: APPLICATIONS TO PLANT FEATURES CHARACTERIZATION AND TO WEED CONTROL IN MAIZE
… 5, 6, 7 and 8, deals with the comparison of two sensing techniques, two-dimensional based on color (RGB) and three-dimensional that consider distance in addition to color (RGBD) to optimize the process of target identification for use in precision weed control spraying that aims to reduce …