System and method of scanning an environment and generating two dimensional images of the environment

Patent metadata

Field	Value
Publication number	US-11775701-B2
Application number	US-202017001034-A
Country	US
Kind code	B2
Filing date	Aug 24, 2020
Priority date	Mar 28, 2017
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

Systems and methods of generating two-dimensional (2D) images of an environment are provided. The systems includes a measurement device and a processor configured to generate a 2D image of an environment based at least in part on a number of 2D scans, a first translation value, a first translation direction, a second translation value, a second translation direction, a first rotation value, and a second rotation value. Generating the 2D image further includes generating a grid map that includes a plurality of cells, each of the plurality of cells indicating a probability of a cell area being occupied.

First claim

What is claimed:

1. A system for generating a two-dimensional (2D) image of an environment, the system comprising:
a measurement device configured to be moved to a plurality of registration positions in the environment, the measurement device having a 2D scanner and is sized and weighted to be carried by a single operator, the 2D scanner being configured to sweep a beam of light in a horizontal plane, wherein the plurality of registration positions includes a first registration position and a second registration position;
wherein the measurement device is configured to obtain a first plurality of 2D scan sets using the 2D scanner while the measurement device moves from the first registration position to the second registration position, each of the first plurality of 2D scan sets being a set of 2D coordinates of points in the environment, each of the first plurality of 2D scan sets being collected by the 2D scanner at a different position relative to the first registration position;
wherein the measurement device is configured to determine a first translation value corresponding to a first translation direction, a second translation value corresponding to a second translation direction, a first rotation value corresponding to a first orientational axis, and a second rotation value corresponding to a second orientational axis, wherein the first translation value, the second translation value, the first rotation value, and the second rotation value are determined based at least in part on a determination of a change in movement or orientation of the measurement device;
a processor configured to generate a 2D image of the environment based at least in part on the plurality of 2D scans, the first translation value, the first translation direction, the second translation value, the second translation direction, the first rotation value, and the second rotation value, wherein generating the 2D image includes generating a grid map that includes a plurality of cells, each of the plurality of cells indicating a probability of a cell area being occupied;
wherein the measurement device comprises a housing having a body and a handle, the body having a first plane extending therethrough; and
a haptic feedback device disposed within the handle and configured to generate haptic feedback in response to a signal indicating an orientation of the measurement device has crossed a variance threshold.

2. The system of claim 1 , wherein the 2D scanner comprises a light source, an image sensor, and a controller, wherein the light source is configured to steer a beam of light within the first plane to illuminate object points in the environment, wherein the image sensor is configured to receive light reflected from the object points, and wherein the controller is configured to determine a distance value to at least one of the object points.

3. The system of claim 2 , further comprising a portable computing device having a second image sensor, the portable computing device configured to communicate with the processor, wherein the processor is configured to merge a first image from the portable computing device into the 2D image of the environment in response to the image being acquired by the second image sensor, wherein a first position of the first image on the 2D image corresponding a second position in the environment where the first image is acquired.

4. The system of claim 1 , further comprising a laser projector coupled to the measurement device, the laser projector having a second light source that emits in operation a visible beam of light in a second plane parallel to the first plane.

5. The system of claim 1 , wherein the measurement device further comprises a three-dimensional camera that is operably coupled to the processor.

6. The system of claim 1 , wherein the measurement device includes a first position indicator configured to interact with a remote device having a second position indicator.

7. The system of claim 6 , wherein the first position indicator includes a near field communications tag and the second position indicator includes a near field communications transmitter and a near field communications receiver.

8. A system for generating a two-dimensional (2D) image of an environment, the system comprising:
a measurement device configured to be moved to a plurality of registration positions in the environment, the measurement device having a 2D scanner and is sized and weighted to be carried by a single operator, the 2D scanner being configured to sweep a beam of light in a horizontal plane, wherein the plurality of registration positions includes a first registration position and a second registration position;
wherein the measurement device is configured to obtain a first plurality of 2D scan sets using the 2D scanner while the measurement device moves from the first registration position to the second registration position, each of the first plurality of 2D scan sets being a set of 2D coordinates of points in the environment, each of the first plurality of 2D scan sets being collected by the 2D scanner at a different position relative to the first registration position;
wherein the measurement device is configured to determine a first translation value corresponding to a first translation direction, a second translation value corresponding to a second translation direction, a first rotation value corresponding to a first orientational axis, and a second rotation value corresponding to a second orientational axis, wherein the first translation value, the second translation value, the first rotation value, and the second rotation value are determined based at least in part on a determination of a change in movement or orientation of the measurement device;
a processor configured to generate a 2D image of the environment based at least in part on the plurality of 2D scans, the first translation value, the first translation direction, the second translation value, the second translation direction, the first rotation value, and the second rotation value, wherein generating the 2D image includes generating a grid map that includes a plurality of cells, each of the plurality of cells indicating a probability of a cell area being occupied;
wherein the measurement device includes a first position indicator configured to interact with a remote device having a second position indicator; and
wherein the first position indicator includes a magnetically activated switch and the second position indicator includes a magnet.

9. A method for generating a two-dimensional (2D) image of an environment, the method comprising:
moving a measurement device to a plurality of registration positions in the environment, the measurement device having a 2D scanner and is sized and weighted to be carried by a single operator, the 2D scanner being configured to sweep a beam of light in a horizontal plane, wherein the plurality of registration positions includes a first registration position and a second registration position;
obtaining a first plurality of 2D scan sets using the 2D scanner while the measurement device moves from the first registration position to the second registration position, each of the first plurality of 2D scan sets being a set of 2D coordinates of points in the environment, each of the first plurality of 2D scan sets being collected by the 2D scanner at a different position relative to the first registration position;
determining a first translation value corresponding to a first translation direction, a second translation value corresponding to a second translation direction, a first rotation value corresponding to a first orientational axis, and a second rotation value corresponding to a second orientational axis, wherein the first translation val

Assignees

• Faro Tech Inc

Inventors

• Santos Joao
• Frank Aleksej
• Ramadneh Ahmad
• Raab Simon
• Zweigle Oliver
• White Derik J

Classifications

• G06F30/13 Primary

  Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads · CPC title

• G01B11/2518

  Projection by scanning of the object · CPC title

• G01C3/08 Primary

  Use of electric radiation detectors · CPC title

• G01C15/008

  combined with inclination sensor · CPC title

• G01C21/1656

  with passive imaging devices, e.g. cameras · CPC title