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Imaging to the Rescue in Fight Against Invasive Bugs

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GREENBELT, Md., Aug. 27, 2015 — Ravenous insects smaller than a penny continue to migrate from the Southeast, threatening to destroy millions of pine and ash trees in the Northeast. Now NASA has teamed with the U.S. Forest Service to combat the problem using an array of optical imaging techniques. Scientists at NASA’s Goddard Space Flight Center are using an airborne instrument first developed in 2011 called G-LiHT — for Goddard lidar hyperspectral and thermal imager — to aid the Forest Service in understanding and combatting two types of insects in particular: the southern pine beetle and the...Read full article

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    Published: August 2015
    Glossary
    lidar
    Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and generate precise, three-dimensional information about the shape and characteristics of objects and surfaces. Lidar systems typically consist of a laser scanner, a GPS receiver, and an inertial measurement unit (IMU), all integrated into a single system. Here is how lidar works: Laser emission: A laser emits laser pulses, often in the form of rapid and repetitive laser...
    thermography
    Thermography is a technique that involves the use of an infrared imaging device, called a thermal camera or infrared camera, to detect and visualize the infrared radiation emitted by objects. This technology allows for the creation of thermographic images, also known as thermograms, where variations in temperature are represented by different colors or shades. The basic principles of thermography are as follows: Infrared radiation emission: All objects with a temperature above absolute zero...
    hyperspectral imaging
    Hyperspectral imaging is an advanced imaging technique that captures and processes information from across the electromagnetic spectrum. Unlike traditional imaging systems that record only a few spectral bands (such as red, green, and blue in visible light), hyperspectral imaging collects data in numerous contiguous bands, covering a wide range of wavelengths. This extended spectral coverage enables detailed analysis and characterization of materials based on their spectral signatures. Key...
    camerasResearch & TechnologyAmericasNew YorkMassachusettsConnecticutNew HampshireCanadaRhode Islandlidarthermographyhyperspectral imagingImagingenvironmentRyan HanavanBruce CookNASA

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