Hyperspectralimaging

There is no doubt that hyperspectral imagery is the most advanced precision ag solution to transform our analysis and optimisation of production, risk management, use of resources and reducing disease.

Multispectralcamera

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Multispectralandhyperspectralimaging

Consider this example about a US project to inspect orange groves, looking for citrus blight disease, which used a Headwall Photonics’ Hyperspec® VNIR hyperspectral solution with an OEM camera mounted on a UAV.

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Multispectralandhyperspectralremote sensing PDF

This is what we call unpolarized light, which means that all the light waves have different planes of oscillation. Polarized light is when light passes through ...

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Citrus blight destroys the vitality of trees and can spread throughout the grove. One of the early signs of this disease is a byproduct secreted on the surface of the leaves. Inspection for this used to require a person climbing a ladder to inspect the top of each tree. More often, growers might not know of a problem until trees started dying.  With hyperspectral imaging, this can be seen 300-400 meters above the crops covering a large area quickly (mounted on UAVs), allowing quick action to eliminate the spread and minimise the destruction.

hyperspectralvs.multispectralremote sensing ppt

The new sensor is capable of capturing images in the visible and invisible light spectrum in the short-wavelength infrared range and boasts a compact size made ...

RGBvs multispectral vs hyperspectral

With hyperspectral capabilities, you will see individual trees and plants, and even the subtle differences in the EMR emitted by disease and soil moisture levels etc.

Each technology is able to sense (“see”) outside the range of normal human vision. The difference is the number of bands and the narrowness of the bands.

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Hyperspectral vs multispectralcamera

Imagine flying over a property and looking down at fields of different colours and appearance. You might decide you know what is planted in each paddock, with accuracy dependent on how low you are flying.

Hyperspectral imagery consists of many more bands (hundreds or thousands) that are much narrower (10-20nm), using an imaging spectrometer.

Imagine we could safely view the world through the eyes of different creatures, enabling us to view infrared radiation, ultraviolet light and reflected electromagnetic energy*. Well, we can, with the use of multispectral and hyperspectral sensors.

Hyperspectral sensors have much more detailed signatures than multispectral sensors and thus provide the ability to detect more subtle differences in aquatic and terrestrial features.

Multispectralandhyperspectralremote sensing

With multispectral detection, you would certainly be able to see differences between various elements, such as a tree plantation versus another crop.

We use robot-guided lasers to cut pieces of cloth to make things such as denim jeans than using our bare hands. They are faster, more accurate and improve ...

The more detailed the spectral information recorded by a sensor, the more information that can be extracted from the spectral signatures.

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