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Professor John Leonard and his colleagues at the National University of Ireland (NUI) at Maynooth have developed a new mapping algorithm that creates highly-detailed 3-D maps.
“The technique solves a major problem in the robotic mapping community that’s known as either “loop closure” or “drift”: As a camera pans across a room or travels down a corridor, it invariably introduces slight errors in the estimated path taken. A doorway may shift a bit to the right, or a wall may appear slightly taller than it is. Over relatively long distances, these errors can compound, resulting in a disjointed map, with walls and stairways that don’t exactly line up,” wrote Jennifer Chu in an article in MIT News.