Patents by Inventor Kevin Joseph Dowling

Kevin Joseph Dowling has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240036203
    Abstract: A method includes receiving a trajectory dataset including a plurality of geospatial points forming a point cloud and acquired along a trajectory wherein for each of the plurality of geospatial points there is a defined an x-coordinate, a y-coordinate and a z-coordinate and at least one mapping device orientation attribute, segmenting the trajectory dataset into a plurality of segments, determining at least one relative constraint for each of the plurality of segments and utilizing, for each of the plurality of segments, at least one of the determined relative constraints to determine a relative position of at least two of the plurality of segments.
    Type: Application
    Filed: October 5, 2023
    Publication date: February 1, 2024
    Applicant: Carnegie Mellon University
    Inventors: Ji Zhang, Calvin Wade Sheen, Kevin Joseph Dowling
  • Patent number: 11815601
    Abstract: A method includes receiving a trajectory dataset including a plurality of geospatial points forming a point cloud and acquired along a trajectory wherein for each of the plurality of geospatial points there is a defined an x-coordinate, a y-coordinate and a z-coordinate and at least one mapping device orientation attribute, segmenting the trajectory dataset into a plurality of segments, determining at least one relative constraint for each of the plurality of segments and utilizing, for each of the plurality of segments, at least one of the determined relative constraints to determine a relative position of at least two of the plurality of segments.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: November 14, 2023
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Ji Zhang, Calvin Wade Sheen, Kevin Joseph Dowling
  • Publication number: 20230288209
    Abstract: A method includes retrieving a map of a 3D geometry of an environment the map including a plurality of non-spatial attribute values each corresponding to one of a plurality of non-spatial attributes and indicative of a plurality of non-spatial sensor readings acquired throughout the environment, receiving a plurality of sensor readings from a device within the environment wherein each of the sensor readings corresponds to at least one of the non-spatial attributes and matching the plurality of received sensor readings to at least one location in the map to produce a determined sensor location.
    Type: Application
    Filed: October 12, 2022
    Publication date: September 14, 2023
    Inventors: Ji Zhang, Kevin Joseph Dowling
  • Publication number: 20230130320
    Abstract: A system configured to derive a motion estimate for a SLAM device using an IMU forming a part of the SLAM system. The system may be configured to refine the motion estimate via a visual-inertial odometry optimization process to produce a refined estimate and refine the refined estimate via a laser odometry optimization process by minimizing at least one residual squared error between at least one feature in a current scan and at least one previously scanned feature.
    Type: Application
    Filed: August 12, 2022
    Publication date: April 27, 2023
    Inventors: Ji Zhang, Sanjiv Singh, Kevin Joseph Dowling
  • Patent number: 11567201
    Abstract: A method comprises accessing a data set comprising a LIDAR acquired point cloud comprising a plurality of points each of which are attributed with at least a geospatial coordinate, sub-sampling at least a portion of the plurality of points to derive a representative sample of the plurality of points and displaying the representative sample of the plurality of points.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: January 31, 2023
    Assignee: Kaarta, Inc.
    Inventors: Ji Zhang, Sanjiv Singh, Kevin Joseph Dowling
  • Patent number: 11506500
    Abstract: A method includes retrieving a map of a 3D geometry of an environment the map including a plurality of non-spatial attribute values each corresponding to one of a plurality of non-spatial attributes and indicative of a plurality of non-spatial sensor readings acquired throughout the environment, receiving a plurality of sensor readings from a device within the environment wherein each of the sensor readings corresponds to at least one of the non-spatial attributes and matching the plurality of received sensor readings to at least one location in the map to produce a determined sensor location.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: November 22, 2022
    Assignee: Kaarta, Inc.
    Inventors: Ji Zhang, Kevin Joseph Dowling
  • Patent number: 11448760
    Abstract: A method comprises accessing a data set comprising a LIDAR acquired point cloud comprising a plurality of points each of which are attributed with at least a geospatial coordinate, sub-sampling at least a portion of the plurality of points to derive a representative sample of the plurality of points and displaying the representative sample of the plurality of points.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: September 20, 2022
    Assignee: Kaarta, Inc.
    Inventors: Ji Zhang, Sanjiv Singh, Kevin Joseph Dowling
  • Publication number: 20210293546
    Abstract: A method includes retrieving a map of a 3D geometry of an environment the map including a plurality of non-spatial attribute values each corresponding to one of a plurality of non-spatial attributes and indicative of a plurality of non-spatial sensor readings acquired throughout the environment, receiving a plurality of sensor readings from a device within the environment wherein each of the sensor readings corresponds to at least one of the non-spatial attributes and matching the plurality of received sensor readings to at least one location in the map to produce a determined sensor location.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 23, 2021
    Inventors: Ji Zhang, Kevin Joseph Dowling
  • Patent number: 10989542
    Abstract: A method includes retrieving a map of a 3D geometry of an environment the map including a plurality of non-spatial attribute values each corresponding to one of a plurality of non-spatial attributes and indicative of a plurality of non-spatial sensor readings acquired throughout the environment, receiving a plurality of sensor readings from a device within the environment wherein each of the sensor readings corresponds to at least one of the non-spatial attributes and matching the plurality of received sensor readings to at least one location in the map to produce a determined sensor location.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: April 27, 2021
    Assignee: Kaarta, Inc.
    Inventors: Ji Zhang, Kevin Joseph Dowling
  • Publication number: 20200400442
    Abstract: A method includes acquiring with a scanning device a scan frame comprising a point cloud comprising a first plurality of points, attributing each of the first plurality of points with a selected metric, filtering an existing map comprised of a second plurality of points based, at least in part, on the selected metric and localizing each of the first plurality of points to the filtered second plurality of points.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 24, 2020
    Inventors: Steven Huber, Ethan Abramson, Ji Zhang, Calvin Wade Sheen, Kevin Joseph Dowling, Brian Boyle
  • Publication number: 20200233085
    Abstract: A method includes receiving a trajectory dataset including a plurality of geospatial points forming a point cloud and acquired along a trajectory wherein for each of the plurality of geospatial points there is a defined an x-coordinate, a y-coordinate and a z-coordinate and at least one mapping device orientation attribute, segmenting the trajectory dataset into a plurality of segments, determining at least one relative constraint for each of the plurality of segments and utilizing, for each of the plurality of segments, at least one of the determined relative constraints to determine a relative position of at least two of the plurality of segments.
    Type: Application
    Filed: April 7, 2020
    Publication date: July 23, 2020
    Inventors: Ji Zhang, Calvin Wade Sheen, Kevin Joseph Dowling
  • Publication number: 20200217666
    Abstract: A method includes retrieving a map of a 3D geometry of an environment the map including a plurality of non-spatial attribute values each corresponding to one of a plurality of non-spatial attributes and indicative of a plurality of non-spatial sensor readings acquired throughout the environment, receiving a plurality of sensor readings from a device within the environment wherein each of the sensor readings corresponds to at least one of the non-spatial attributes and matching the plurality of received sensor readings to at least one location in the map to produce a determined sensor location.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 9, 2020
    Inventors: Ji Zhang, Kevin Joseph Dowling
  • Publication number: 20190346271
    Abstract: A method includes receiving data from an IMU device at a first computational module at a first frequency and computing, based at least in part on the received IMU data, a first estimated position of a mobile mapping system, receiving the first estimated position and visual-inertial data at a second computational module at a second frequency and computing, based at least in part on the first estimated position and visual-inertial data, a second estimated position of the mobile mapping system and receiving the second estimated position and laser scan data at a third computational module at a third frequency and computing, based at least in part on the second estimated position and laser scan data, a third estimated position of the mobile mapping system.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Inventors: Ji Zhang, Kevin Joseph Dowling, Sanjiv Singh
  • Publication number: 20190235083
    Abstract: A method comprises accessing a data set comprising a LIDAR acquired point cloud comprising a plurality of points each of which are attributed with at least a geospatial coordinate, sub-sampling at least a portion of the plurality of points to derive a representative sample of the plurality of points and displaying the representative sample of the plurality of points.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Inventors: Ji Zhang, Sanjiv Singh, Kevin Joseph Dowling