What is SWIR infrared?
Short Wave IR (SWIR) is a subset of the infrared band in the electromagnetic spectrum, covering the wavelengths ranging from 1.4 to 3 microns. This wavelength is not visible to human eyes and as a result can often offer a better image than what is achievable with visible light imaging.
What is the difference between SWIR and NIR?
Typically we define near infrared (NIR) from 780 nm to 1400 nm and shortwave infrared (SWIR) from 1400 nm to 3000 nm. But it is also common to refer to the entire range from 780 nm up to 3000 nm as NIR or SWIR.
What is the wavelength of SWIR?
0.9 – 1.7μm
Short-wave infrared (SWIR) light is typically defined as light in the 0.9 – 1.7μm wavelength range, but can also be classified from 0.7 – 2.5μm.
What is short wave infrared good for?
It is used for the identification of crop, distinguishing between soil and crops, and for mapping the water bodies’ boundaries. Red band. This band is one of the essential bands for delineating different kinds of vegetation. It is also very useful for soil type boundaries mapping and geological formation boundaries.
What is SWIR spectrometer?
The SWIR full spectrum imager (SFSI) is an imaging spectrometer, covering the short-wave infrared (SWIR) from 1200 to 2400 nm, which has been developed for remote sensing from an airborne platform.
What does SWIR measure?
SWIR refers to nonvisible light falling roughly between 1400 and 3000 nanometers (nm) in wavelength. Visible light, on the other hand, typically corresponds to the 400 to 700 nm range.
What is SWIR imaging?
Short-wave Infrared imaging (SWIR) is an advanced technique, used for producing images based on radiation in the region of the electromagnetic spectrum invisible to the naked eye.
What is SWIR and MWIR?
The three wavelengths are: Short Wavelength Infrared (SWIR), Medium Wavelength Infrared (MWIR), and Long Wavelength Infrared (LWIR). All Thermal imaging devices operating on the infrared wavelength are, ‘imagers’ that we commonly refer to as ‘cameras’, however they are actually sensors that can detect radiated heat.
Does SWIR work at night?
Well, InGaAs sensors can be made extremely sensitive, literally counting individual photons. Thus, when built as focal plane arrays with thousands or millions of tiny point sensors, or sensor pixels, SWIR cameras will work in very dark conditions.
How do SWIR cameras work?
Wavelengths within the SWIR band interact with objects just as they do with visible light. Photons in this wavelength are reflected or absorbed by objects, allowing for high resolution imaging with strong contrast.
What is SWIR image?
Can SWIR see through clouds?
Short Wavelength Infrared (SWIR) These imagers have the ability to capture clear detail through smog, clouds, and haze. SWIR cameras are the only wavelength technology that can penetrate cloud coverage and capture a clear image.