Comparison of Sentinel-2 and UAV Multispectral Data for Use in Precision Agriculture: An Application from Northern Greece
| العنوان: | Comparison of Sentinel-2 and UAV Multispectral Data for Use in Precision Agriculture: An Application from Northern Greece |
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| المؤلفون: | Eleni Kokinou, Nikolaos Bollas, Vassilios Polychronos |
| المصدر: | Drones Volume 5 Issue 2 Drones, Vol 5, Iss 35, p 35 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010504 meteorology & atmospheric sciences, Correlation coefficient, NDVI, UAV, 0211 other engineering and technologies, Aerospace Engineering, 02 engineering and technology, 01 natural sciences, Normalized Difference Vegetation Index, Artificial Intelligence, Range (statistics), Image resolution, Motor vehicles. Aeronautics. Astronautics, 021101 geological & geomatics engineering, 0105 earth and related environmental sciences, Remote sensing, Mathematics, precision agriculture, 2D visualization, TL1-4050, Ranging, Computer Science Applications, Visualization, Control and Systems Engineering, Satellite, Precision agriculture, Sentinel-2, Information Systems |
| الوصف: | The scope of this work is to compare Sentinel-2 and unmanned aerial vehicles (UAV) imagery from northern Greece for use in precision agriculture by implementing statistical analysis and 2D visualization. Surveys took place on five dates with a difference between the sensing dates for the two techniques ranging from 1 to 4 days. Using the acquired images, we initially computed the maps of the Normalized Difference Vegetation Index (NDVI), then the values of this index for fifteen points and four polygons (areas). The UAV images were not resampled, aiming to compare both techniques based on their initial standards, as they are used by the farmers. Similarities between the two techniques are depicted on the trend of the NDVI means for both satellite and UAV techniques, considering the points and the polygons. The differences are in the a) mean NDVI values of the points and b) range of the NDVI values of the polygons probably because of the difference in the spatial resolution of the two techniques. The correlation coefficient of the NDVI values, considering both points and polygons, ranges between 83.5% and 98.26%. In conclusion, both techniques provide important information in precision agriculture depending on the spatial extent, resolution, and cost, as well as the requirements of the survey. |
| وصف الملف: | application/pdf |
| تدمد: | 2504-446X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58c303f170ff0ceb02a67e46acb73e41 https://doi.org/10.3390/drones5020035 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....58c303f170ff0ceb02a67e46acb73e41 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 2504446X |
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