DARPA scheme would let high-tech systems “see” as never before
Researchers at the Defense Advanced Research Projects Agency want to build extremely small light detection and ranging (LIDAR) systems -- which use light to image objects and their motions like RADAR systems use radio waves – to enable a host of new applications that would let high-tech systems “see” as they never have before.
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According to DARPA, a LIDAR system beams light out and then precisely monitors the timing of reflections back to map and track objects within its detection range. Unlike a camera that captures a two-dimensional rendition of three-dimensional scenes, a LIDAR system essentially captures full-fledged three-dimensional reality. The basic technology already is out there—LIDAR allowed many robots at the DARPA Robotics Challenge to “see” and it enables autonomous vehicles to sense obstacles in their surroundings, for example—but those systems are too big, heavy and expensive for widespread use, the agency stated.
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