Development of a sensor platform for roadway mapping : part b - mapping the road fog lines : final report.
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2015-04-01
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Edition:Final report
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Abstract:Our objective is the development and evaluation of a low-cost, vehicle-mounted sensor suite capable of generating ; map data with lane and road boundary information accurate to the 10 cm (4 in) level. Such a map could be used for ; a number of different applications including GNSS/GPS based lane departure avoidance systems, smart phone ; based dynamic curve speed warning systems, basemap improvements, among others. ; The sensor suite used consists of a high accuracy GNSS receiver, a side-facing video camera, and a computer. ; Including cabling and mounting hardware, the equipment costs were roughly $30,000. Here, the side-facing camera ; is used to record video of the ground adjacent to the passenger side of the vehicle. The video is processed using a ; computer vision algorithm that locates the fog line within the video frame. Using vehicle position data (provided by ; GNSS) and previously collected video calibration data, the fog line is located in real-world coordinates. ; The system was tested on two roads (primarily two-lane, undivided highway) for which high accuracy (<10 cm) ; maps were available. This offset between the reference data and the computed fog line position was generally ; better than 7.5 cm (3 in). ; The results of this work demonstrate that it is feasible to use a camera to detect the position of a road’s fog lines, or ; more broadly any other lane markings, which when integrated into a larger mobile data collection system, can ; provide accurate lane and road boundary information about road geometry.
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Main Document Checksum:urn:sha256:dc0b08d533415aea522ca2ac4ea4102e81c745e9e74c2ee8727bd533fd5af03f