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Algorithm Speeds Lidar Assessment of Landslide Risk

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CORVALLIS, Ore., Nov. 21, 2014 — Computer algorithms could turn lidar surveying systems into powerful tools for assessing landslides and keeping people out of their path. Created by researchers at Oregon State University and George Mason University, the Contour Connection Method (CCM) is based on lidar data and requires minimal user input. The developers say it can analyze and classify landslide risk in an area of 50 or more square miles in about 30 minutes, a task that would otherwise take an expert several weeks to months to complete. Current landslide-mapping techniques include field inventorying and...Read full article

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    Published: November 2014
    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...
    Research & TechnologyAmericasOregonWashingtonlidarOregon State UniversityGeorge Mason UniversityMichael OlsenBen Leshchinsky

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