Patents by Inventor Mohammad R. JAHANSHAHI

Mohammad R. JAHANSHAHI 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: 20220172346
    Abstract: Systems and methods for detecting cracks in a surface by analyzing a video, including an full-HD video, of the surface. The video contains successive frames, wherein individual frames of overlapping consecutive pairs of the successive frames have overlapping areas and a crack that appears in a first individual frame of a consecutive pair of the successive frames also appears in at least a second individual frame of the consecutive pair. A fully convolutional network (FCN) architecture implemented on a processing device is then used to analyze at least some of the individual frames of the video to generate crack score maps for the individual frames, and a parametric data fusion scheme implemented on a processing device is used to fuse crack scores of the crack score maps of the individual frames to identify cracks in the individual frames.
    Type: Application
    Filed: April 9, 2020
    Publication date: June 2, 2022
    Inventors: Fu-Chen Chen, Mohammad R. Jahanshahi
  • Patent number: 9235902
    Abstract: Contact-less remote-sensing crack detection and/quantification methodologies are described, which are based on three-dimensional (3D) scene reconstruction, image processing, and pattern recognition. The systems and methodologies can utilize depth perception for detecting and/or quantifying cracks. These methodologies can provide the ability to analyze images captured from any distance and using any focal length or resolution. This adaptive feature may be especially useful for incorporation into mobile systems, such as unmanned aerial vehicles (UAV) or mobile autonomous or semi-autonomous robotic systems such as wheel-based or track-based radio controlled robots, as utilizing such structural inspection methods onto those mobile platforms may allow inaccessible regions to be properly inspected for cracks.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: January 12, 2016
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Mohammad R. Jahanshahi, Sami Masri
  • Patent number: 9196048
    Abstract: An autonomous pavement assessment system may receive depth data indicative of the depth of pixels that collectively comprise multiple defective areas of pavement. For each defective area, the system may fit a plane to it; generate a histogram that indicates the frequency of its pixels at different depths; dynamically determine a depth noise threshold for it; generate a binary image of it based on its noise threshold; and generate a depth map of it containing only the pixels that have a depth that meets or exceeds its depth noise threshold. The system may prioritize the multiple defective areas for repair and/or generate optimized rehabilitation routes. Crowd sourcing may be used to gather the depth data, as well as location information for each defective area.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 24, 2015
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Mohammad R. Jahanshahi, Farrokh Jazizadeh Karimi, Sami F. Masri, Burcin Becerik-Gerber
  • Patent number: 8873837
    Abstract: Contact-less remote-sensing crack detection and/quantification methodologies are described, which are based on three-dimensional (3D) scene reconstruction, image processing, and pattern recognition. The systems and methodologies can utilize depth perception for detecting and/or quantifying cracks. These methodologies can provide the ability to analyze images captured from any distance and using any focal length or resolution. This adaptive feature may be especially useful for incorporation into mobile systems, such as unmanned aerial vehicles (UAV) or mobile autonomous or semi-autonomous robotic systems such as wheel-based or track-based radio controlled robots, as utilizing such structural inspection methods onto those mobile platforms may allow inaccessible regions to be properly inspected for cracks.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: October 28, 2014
    Assignee: University of Southern California
    Inventors: Mohammad R. Jahanshahi, Sami F. Masri
  • Publication number: 20130034305
    Abstract: Contact-less remote-sensing crack detection and/quantification methodologies are described, which are based on three-dimensional (3D) scene reconstruction, image processing, and pattern recognition. The systems and methodologies can utilize depth perception for detecting and/or quantifying cracks. These methodologies can provide the ability to analyze images captured from any distance and using any focal length or resolution. This adaptive feature may be especially useful for incorporation into mobile systems, such as unmanned aerial vehicles (UAV) or mobile autonomous or semi-autonomous robotic systems such as wheel-based or track-based radio controlled robots, as utilizing such structural inspection methods onto those mobile platforms may allow inaccessible regions to be properly inspected for cracks.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 7, 2013
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Mohammad R. JAHANSHAHI, Sami MASRI
  • Publication number: 20130034298
    Abstract: Contact-less remote-sensing crack detection and/quantification methodologies are described, which are based on three-dimensional (3D) scene reconstruction, image processing, and pattern recognition. The systems and methodologies can utilize depth perception for detecting and/or quantifying cracks. These methodologies can provide the ability to analyze images captured from any distance and using any focal length or resolution. This adaptive feature may be especially useful for incorporation into mobile systems, such as unmanned aerial vehicles (UAV) or mobile autonomous or semi-autonomous robotic systems such as wheel-based or track-based radio controlled robots, as utilizing such structural inspection methods onto those mobile platforms may allow inaccessible regions to be properly inspected for cracks.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 7, 2013
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Mohammad R. JAHANSHAHI, Sami MASRI