PORTABLE PANORAMIC LASER MAPPING AND/OR PROJECTION SYSTEM

摘要

Techniques are described herein that are capable of forming a depth map and/or projecting an image onto object(s) based on the depth map. A depth map is a three-dimensional representation of an environment. Forming the depth map may utilize a progressive resolution refinement technique. For example, locating information may be determined in accordance with the progressive resolution refinement technique in response to performing a scan of a current point over a field of view. The current point is a point, selected from a plurality of points (e.g., a grid of points) in the field of view, to which a detection beam of light is directed at a respective time as the scan is performed over the field of view. In accordance with this example, the locating information may be coordinated with the scan to form the depth map.

主权项

1. A portable panoramic laser mapping system comprising:
a depth measurement subsystem configured to measure a distance between a reference location and a current point, the depth measurement subsystem including:
a laser source configured to generate coherent light, the laser source capable of modulating the coherent light;splitting optics configured to create a reference beam of light and a detection beam of light from the coherent light;a light detecting structure configured to convert the reference beam and a reflected detection beam into electrical signals, the reflected detection beam resulting from reflection of the detection beam from the current point; anda signal processing circuit configured to determine locating information based on the electrical signals in accordance with a progressive resolution refinement technique, the locating information indicating the distance between the reference location and the current point; a microelectromechanical systems-based scanning subsystem including:
one or more mirrors; anda light redirecting element having a microelectromechanical structure that is configured to perform a scan of the current point over a field of view using the one or more mirrors; and a controller configured to coordinate the locating information with the scan of the current point over the field of view to form a depth map.