Remote sensing
Soil-Adjusted Vegetation Indices in Sparse Crop Canopies
Sparse crop imagery contains a mixture of leaves, soil, residue and shadow.
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THE DRONE COLLAB JOURNAL
Better drone maps start with better decisions.
Explore practical photogrammetry, GNSS, IMU, GIS and remote sensing methods. Technical explanations, worked examples and field checks for the people turning aerial photographs into usable maps.
1554 articles13 topics
Flight planning
Terrain-Following Capture for Coastal Settlement Corridors
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Remote sensing
Using Red-Edge Indices with Crop Stage and Band Definitions
Red-edge indices use bands near the transition between red absorption and near-infrared reflectance.
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Remote sensing
Why NDVI Is a Vegetation Indicator Rather Than a Crop Diagnosis
NDVI combines near-infrared and red reflectance as their difference divided by their sum.
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Remote sensing
Choosing RGB or Multispectral Imagery from the Actual Farm Question
Sensor selection starts with the target observation.
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Agriculture
Thermal Crop Scouting with Weather and Canopy Context
Thermal imagery can reveal spatial differences in apparent canopy temperature when capture and calibration are appropriate.
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Agriculture
Evaluating Fertilizer Strip Trials Without Treating Image Pixels as Replicates
A fertilizer strip trial needs verified treatment boundaries, application records and a design that addresses spatial variability.
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Agriculture
Mapping Exposed Agricultural Soil as an Erosion Investigation Layer
Exposed-soil maps become more informative when linked to slope, drainage concentration and management history.
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Agriculture
Using Pasture Drone Maps to Plan Representative Forage Sampling
Pasture mosaics show spatial differences in visible vegetation, bare patches, tracks and shaded ground.
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Agriculture
Finding Irrigation Anomalies with Drone Maps and Field Measurements
Irrigation problems can appear as localized wet ground, unusual canopy patterns or repeated strips aligned with delivery infrastructure.
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Agriculture
Measuring Cover-Crop Ground Coverage for Targeted Field Checks
Cover-crop mapping should distinguish living vegetation, exposed soil, residue and unobservable shadow.
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Agriculture
Mapping Horticultural Bed Establishment and Missing Plant Sections
Vegetable and horticultural beds concentrate plants into narrow production units separated by paths, plastic mulch or irrigation lines.
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Agriculture
Separating Vineyard Row Variability from Soil and Shadow Effects
Vineyard imagery often mixes narrow canopy strips with bright soil, grassed inter-rows and shadows.
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