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- Rayburn, E. B., et al. Show all 6 Authors
- Rangeland ecology & management 2008 v.61 no.2 pp. 245-248
- interspecific variation; correlation; automatic detection; image analysis; vegetation cover; forage grasses; color; remote sensing; sward; measurement; grasslands; Virginia
- ... Productive ground cover (PGC) is often used as a measure of sward health and persistence. To measure PGC, a camera stand was constructed to provide diffuse lighting of grass swards for color digital photography; the photographs were classified into productive and nonproductive cover using Mahalanobis distance. The PGC measurement techniques were tested on a grazing experiment that used four forage ...