Indoor navigation via multi beam laser projection

摘要

An indoor navigation system is based on a multi-beam laser projector, a set of calibrated cameras, and a processor that uses knowledge of the projector design and data on laser spot locations observed by the cameras to solve the space resection problem to find the location and orientation of the projector.

主权项

1. An indoor navigation system comprising:
a laser projector that emits laser beams in four or more different directions; two or more cameras that capture images of spots made by the laser beams on surfaces of an indoor space, the cameras calibrated such that three-dimensional locations of the spots can be estimated from images captured by at least two cameras; and, a processor in communication with the cameras, the processor estimating the position and orientation of the laser projector in the indoor space by space resection given the four or more different directions and the three-dimensional locations of the spots.