MidOpt Dual Bandpass Green + 850nm NIR DB550/850

Highlights

The DB550/850 compliments the DB660/850 and DB475/850 filters. When modifying a single color camera by removing its IR blocking filter, incorporation of this filter in its place allows reflected near-infrared light (850nm) to be captured in the camera sensor’s red channel and reflected green light (550nm) to be captured in the sensor’s green channel (the blue channel is not used). Healthy vegetation will absorb (not reflect) green light and strongly reflect near-infrared light. Thus this information can then be used to apply a false color gradient to images to better highlight the contrast between regions of healthy vegetation vs. areas with stressed, diseased or no vegetation.

• Green Chlorophyll Index | CIg = (NIR / Green) – 1
• Green Difference Vegetation Index | GDVI = NIR – Green
• Green Normalized Difference Vegetation Index | GNDVI = (NIR – Green) / (NIR + Green)
• Green Ratio Vegetation Index | GRVI = NIR / Green
• Green Soil Adjusted Vegetation Index | GSAVI = [(NIR – Green) / (NIR + Green + 0.5)] * (1 + 0.5)