What are hyperspectral sensors?
hyperspectral sensors are devices that record images using a wide part of the electromagnetic spectrum. These sensors capture an image in a number of cuts or spectral strips, each of which represents a part of the spectrum. These spectral strips are then combined to form a three -dimensional folded image. The resulting images or hyperspectral cubes allow a definitive analysis of deep layers of materials or minerals that form a scanned area. Hyperspectral imaging is a valuable diagnostic tool in physics, agriculture, monitoring and mineralogy.
people can only recognize in the visible part of the electromagnetic spectrum. Several creatures in nature, such as mantis shrimp, can "see" objects to a much wider range, including ultraviolet and infrared light. Hyperspectral sensors have the same characteristics of a wide range of sensitivity and detect reflecting wavelengths of light invisible to the human eye. Hyperspelectral imaging deviceáe images in the wavelength of defined cuts or spectral zones. Different materials and minerals reflect in a unique way separate wavelengths of light and allow the equipment to create an accurate picture of the cross -section of the compositional cross -section of any object.
spectral "signatures" of most materials are known factors that allow easy identification of information captured sensor. This can significantly speed up the survey process in searching for ores and oil. Hyperspelectral sensors in this type of survey are usually transported in light aircraft and data collected by the assimilated in landing. Geographic spectral analysis is also performed from space through satellite localization sensors. In these cases, the collected data is sent back to the ground using a radio connection.
hyperspectral sensors are also commonly used in the agricultural industry. There are used to create images thatIt can help with early detection of outbreaks of plant diseases. They are also used to determine nutrient levels in stagnant crops and water levels in the surrounding soil. Another important use of hyperspectral imaging in agriculture is the detection of animal proteins in livestock feeds. This information is then used as a contradictory measure for distributed animal suffering, such as a disease of mad cows.
Security and Surveillance Industries are also regular users of hyperspectral sensors. In these applications, sensors are used to distinguish between real vegetation and camouflage colors and detect areas of heavy traffic. They can also determine underground amplification and identify the location of the minefields. Investigators can also use hyperspectral sensors to find a recently disturbed country that may indicate the location of graves or buried objects.