Patents by Inventor Roger Lew

Roger Lew 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).

  • Patent number: 11544916
    Abstract: Computing devices and methods for reading gauges are disclosed. A gauge reading method includes capturing image data corresponding to a captured image of one or more gauges, detecting one or more gauges in the captured image, cropping a detected gauge in the captured image to provide a use image including the detected gauge, and classifying the detected gauge to correlate the detected gauge with a template image. The gauge reading method also includes attempting to perform feature detection rectification on the use image to produce a rectified image of the detected gauge, performing template matching rectification on the use image to produce the rectified image responsive to a failure to perform the feature detection rectification, and estimating a gauge reading responsive to the rectified image. A computing device may implement at least a portion of a gauge reading method.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 3, 2023
    Assignees: Battelle Energy Alliance, LLC, University of Idaho
    Inventors: Ahmad Y. Al Rashdan, Roger Lew, Michael L. Wheeler, Gregory D. Lancaster, Troy C. Unruh
  • Publication number: 20220383541
    Abstract: Various embodiments relate to unmanned vehicle navigation. A navigation system may include one or more processors configured to communicatively couple with an unmanned vehicle. The one or more processors may be configured to receive an image from the unmanned vehicle and detect a feature within the image. The one or more processors may be further be configured to determine a location of the unmanned vehicle based on the feature and convey one or more commands to the unmanned vehicle based on the location of the unmanned vehicle. Associated methods and computer-readable medium are also disclosed.
    Type: Application
    Filed: November 13, 2020
    Publication date: December 1, 2022
    Inventors: Ahmad Y. Al Rashdan, Michael L. Wheeler, Roger Lew, Dakota Roberson, Lloyd M. Griffel, Roger Boza, Michael W. Thompson
  • Publication number: 20210142102
    Abstract: Computing devices and methods for reading gauges are disclosed. A gauge reading method includes capturing image data corresponding to a captured image of one or more gauges, detecting one or more gauges in the captured image, cropping a detected gauge in the captured image to provide a use image including the detected gauge, and classifying the detected gauge to correlate the detected gauge with a template image. The gauge reading method also includes attempting to perform feature detection rectification on the use image to produce a rectified image of the detected gauge, performing template matching rectification on the use image to produce the rectified image responsive to a failure to perform the feature detection rectification, and estimating a gauge reading responsive to the rectified image. A computing device may implement at least a portion of a gauge reading method.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 13, 2021
    Inventors: Ahmad Y. Al Rashdan, Roger Lew, Michael L. Wheeler, Gregory D. Lancaster, Troy C. Unruh
  • Patent number: 7480581
    Abstract: Calibrating automatic test equipment (ATE) includes adding jitter to a test signal to produce a jittered signal, sampling the jittered signal to produce digital values, generating a reconstructed jittered signal from the digital values, determining an amount of jitter in the reconstructed jittered signal, and calibrating the ATE based on the amount of jitter in the reconstructed jittered signal.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: January 20, 2009
    Assignee: Teradyne, Inc.
    Inventors: Edward Roger Lew, Xiaoqing Liu