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vegetation. This can be useful in agriculture for identifying stress in crops, precision farming, and
in forestry for quantifying density, or leaf area.
The CCFC has a removable IR filter which allows it to capture two images in rapid succession in
order to create an NDVI representation image.
NOTE:
Any motion in the frame will be apparent in the NDVI image since there is a small time lag
between the image captures (less than one second).
NDVI creates a false color image, with non-vegetation appearing in shades of blue and
vegetation appears in colors on a scale from green to yellow to red (see
(p. 27)). The
NDVI image which the CCFC generates has a legend at the bottom which displays this scale. It
also contains an estimation of the total percentage of vegetation in the image.
FIGURE 12-1. NDVI image example
CCFC Field Camera
27
Содержание CCFC
Страница 1: ...Revision 08 2021 Copyright 2016 2021 Campbell Scientific Inc ...
Страница 134: ...24 3 NDVI NDVI functions only during daylight hours CCFC Field Camera 128 ...
Страница 137: ...FIGURE A 3 Backplate new FIGURE A 4 Backplate old CCFC Field Camera 131 ...
Страница 138: ...FIGURE A 5 CCFCCBL3 L Ethernet connector new FIGURE A 6 CCFCCBL2 L Ethernet connector old CCFC Field Camera 132 ...