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this separation makes it possible to post-process the red and blue channels for NDVI by performing the calculation: NDVI = (blue – red) / (blue + red)
The Bi385 is designed to block visible (VIS) through near-infrared (IR) wavelengths while passing UV light
license plate recognition and industrial inspection applications when there is overwhelming ambient light conditions and is suitable for laser diode and LED illumination
making it an ideal choice for surveillance systems that demand high-quality imaging
The Bi685 isolates the 685nm wavelength range used in some red light vegetative health indices
Green Interference Bandpass Filter, 535-558nm - MidOpt Bi550 Neutral Density this separation makes it possibleThe MidOpt Bi550 Green Interference Bandpass Filter is designed to block unwanted ambient light when imaging subjects illuminated with 550nm green LEDs. They are also used to isolate the green vegetation signal used to arrive at EVI (Enhanced Vegetation Index) and other similar plant health numerical indices. MidOpt Bandpass Filters have a broad, Gaussian passband to mimic and accommodate the entire output of the most common LED wavelengths, are
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