Glossary for Geospatial Science

Transformed Vegetation Index:� A commonly used vegetation index derived from images of certain spectral bands.� The TVI is equal to the square root of the quotient of the photo-infrared minus the red band, and the photo-infrared plus the red band {SQRT[(IR - red) / (IR + red)]}.� Common color-infrared image sources that TNTmips uses to compute TVI index rasters include Landsat MSS and TM, SPOT CIR, 35mm CIR film, 9" CIR film, and CIR video.