Mapping giant salvinia with satellite imagery and image analysis
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QuickBird multispectral satellite imagery was evaluated for distinguishing giant salvinia (Salvinia molesta Mitchell) in a large reservoir in east Texas. The imagery had four bands (blue, green, red, and near-infrared) and contained 11-bit data. Color-infrared (green, red, and near-infrared bands), normal color (blue, green and red bands), and four-band composite (blue, green, red, and near-infrared bands) images were studied. Unsupervised image analysis was used to classify the imagery. Accuracy assessments performed on the classification maps of the three composite images had producer’s and user’s accuracies for giant salvinia ranging from 87.8 to 93.5%. Color-infrared, normal color, and four-band satellite imagery were excellent for distinguishing giant salvinia in a complex field habitat.
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- Mapping giant salvinia with satellite imagery and image analysis
Environmental Monitoring and Assessment
Volume 139, Issue 1-3 , pp 35-40
- Cover Date
- Print ISSN
- Online ISSN
- Springer Netherlands
- Additional Links
- QuickBird satellite imagery
- Color-infrared imagery
- Normal color imagery
- Four-band composite imagery
- Unsupervised image analysis
- Accuracy assessment
- Salvinia molesta
- Industry Sectors