Patents by Inventor Dave S. Douglas

Dave S. Douglas 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: 11787562
    Abstract: A system and method for capturing an unmanned aerial vehicle includes a net configured to receive the unmanned aerial vehicle, an infrared emitter arrangement including a plurality of infrared emitters arranged around the net, an infrared sensor mounted to the unmanned aerial vehicle and configured to detect the infrared emitter arrangement, and a processor that is in communication with the infrared sensor and configured to adjust an azimuth and elevation of the unmanned aerial vehicle based on the detected infrared emitter arrangement in a field-of-view of the infrared sensor.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: October 17, 2023
    Assignee: Raytheon Company
    Inventors: Jonathan A. Cain, Michael J. Mahnken, Dave S. Douglas
  • Patent number: 11704777
    Abstract: A method of de-smearing an image includes capturing image data from an imaging sensor and collecting motion data indicative of motion of the sensor while capturing the image data. The motion data is collected at a higher frequency than an exposure frequency at which the image data is captured. The method includes modeling motion of the sensor based on the motion data, wherein motion is modeled at the higher frequency than the exposure frequency. The method also includes modeling optical blur for the image data, modeling noise for the image data, and forming a de-smeared image as a function of the modeled motion, the modeled blur, and the modeled noise, and the image data captured from the imaging sensor.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: July 18, 2023
    Assignee: Raytheon Company
    Inventors: Dave S. Douglas, Jingning Pan, Alexandra G. Levinson
  • Publication number: 20230061085
    Abstract: A method of de-smearing an image includes capturing image data from an imaging sensor and collecting motion data indicative of motion of the sensor while capturing the image data. The motion data is collected at a higher frequency than an exposure frequency at which the image data is captured. The method includes modeling motion of the sensor based on the motion data, wherein motion is modeled at the higher frequency than the exposure frequency. The method also includes modeling optical blur for the image data, modeling noise for the image data, and forming a de-smeared image as a function of the modeled motion, the modeled blur, and the modeled noise, and the image data captured from the imaging sensor.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 2, 2023
    Applicant: Raytheon Company
    Inventors: Dave S. Douglas, Jingning Pan, Alexandra G. Levinson
  • Publication number: 20220234756
    Abstract: A system and method for capturing an unmanned aerial vehicle includes a net configured to receive the unmanned aerial vehicle, an infrared emitter arrangement including a plurality of infrared emitters arranged around the net, an infrared sensor mounted to the unmanned aerial vehicle and configured to detect the infrared emitter arrangement, and a processor that is in communication with the infrared sensor and configured to adjust an azimuth and elevation of the unmanned aerial vehicle based on the detected infrared emitter arrangement in a field-of-view of the infrared sensor.
    Type: Application
    Filed: January 28, 2021
    Publication date: July 28, 2022
    Inventors: Jonathan A. Cain, Michael J. Mahnken, Dave S. Douglas
  • Patent number: 8611600
    Abstract: Embodiments of a target-tracking system and method of determining an initial target track in a high-clutter environment are generally described herein. The target-tracking system may register image information of first and second warped images with image information of a reference image. Pixels of the warped images may be offset based on the outputs of the registration to align each warped images with the reference image. A three-frame difference calculation may be performed on the offset images and the reference image to generate a three-frame difference output image. Clutter suppression may be performed on the three-frame difference image to generate a clutter-suppressed output image for use in target-track identification. The clutter suppression may include performing a gradient operation on a background image to remove any gradient objects.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: December 17, 2013
    Assignee: Raytheon Company
    Inventors: Arthur M. Newman, Vitaliy M. Kaganovich, Nicholas Sun, Dave S. Douglas
  • Publication number: 20130094694
    Abstract: Embodiments of a target-tracking system and method of determining an initial target track in a high-clutter environment are generally described herein. The target-tracking system may register image information of first and second warped images with image information of a reference image. Pixels of the warped images may be offset based on the outputs of the registration to align each warped images with the reference image. A three-frame difference calculation may be performed on the offset images and the reference image to generate a three-frame difference output image. Clutter suppression may be performed on the three-frame difference image to generate a clutter-suppressed output image for use in target-track identification. The clutter suppression may include performing a gradient operation on a background image to remove any gradient objects.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: Raytheon Company
    Inventors: Arthur M. Newman, Vitaliy M. Kaganovich, Nicholas Sun, Dave S. Douglas
  • Patent number: 8090220
    Abstract: Restoration based super-resolution combines a video sequence of low-resolution noisy blurred images using maximum likelihood estimation without regularization to produce a higher resolution image or video sequence up to a maximum enhancement factor r for the given video sequence. The maximum r value for a given sequence of low-resolution images that guarantees each high-resolution bin (pixel) will have at least one assigned pixel value from a low-resolution image is calculated. With the knowledge of max r, the system can select an r less than or equal to max r and thus operate without regularization. System robustness is further enhanced by providing a modified MLE estimator that can perform super resolution for arbitrary real-valued r so that enhancement is not limited to integer values.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: January 3, 2012
    Assignee: Raytheon Company
    Inventors: Dave S. Douglas, Jingning Pan
  • Publication number: 20100021084
    Abstract: Restoration based super-resolution combines a video sequence of low-resolution noisy blurred images using maximum likelihood estimation without regularization to produce a higher resolution image or video sequence up to a maximum enhancement factor r for the given video sequence. The maximum r value for a given sequence of low-resolution images that guarantees each high-resolution bin (pixel) will have at least one assigned pixel value from a low-resolution image is calculated. With the knowledge of max r, the system can select an r less than or equal to max r and thus operate without regularization. System robustness is further enhanced by providing a modified MLE estimator that can perform super resolution for arbitrary real-valued r so that enhancement is not limited to integer values.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 28, 2010
    Inventors: DAVE S. DOUGLAS, Jingning Pan