Detail 4

NDVI maps have certain weaknesses

 
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Detail 1

Failing to correct for changes in lighting conditions, NDVI images taken 2 hours apart falsely indicate changes in vine health when none have occurred.  This can mislead vineyard managers, possibly causing them to take improper actions.

 

cevi's correct these weaknesses

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Detail 3

 CEVI's use additional wavelengths, scientifically proven algorithms and multiple calibrations to correct NDVI inaccuracies, producing virtually identical maps, accurately reflecting vine vigor.  See our partner VineView's video on this subject:  Enhanced Vegetation Index:  The New Vigor Map.