ATLANTA, June 20, 2012 — An automated pavement crack detection and sealing system equipped with LEDs and a camera increases worker safety, requires less manpower, and increases the amount of roadway covered per day. The prototype system developed at Georgia Tech Research Institute (GTRI) can efficiently detect and fill cracks smaller than 1/8-in. wide from a vehicle moving at a speed of 3 mph. An automated crack sealing system would increase the level of safety for the workers involved, require fewer personnel, and increase the amount of roadway covered per day. (Images: Jonathan Holmes) Mounted on a...Read full articleRelated content from Photonics MediaARTICLESLensless Camera Uses Fresnel Zone Aperture, Incoherent Illumination to Improve ImagesTo reduce noise in a thin, lensless camera, researchers at Tsinghua University and MIT built an imaging system with a Fresnel zone aperture (FZA). 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