Patents by Inventor Francisco Pereira

Francisco Pereira 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: 9596452
    Abstract: A lens and aperture device for determining 3D information. An SLR camera has a lens and aperture that allows the SLR camera to determine defocused information.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 14, 2017
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Jian Lu, Scott Hsieh, Francisco Pereira, Alexei Harvard, David Jeon
  • Publication number: 20160306942
    Abstract: A method for subject-specific assessment of neurological disorders, the method includes receiving 3D image data representative of a subject's brain and identifying subject-specific anatomical structures in the 3D image data. A subject-specific model for electrical dynamics is created based on the 3D image data and the subject-specific anatomical structures and one or more functional indicators of neurological disorder are computed using the subject-specific model for electrical dynamics.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 20, 2016
    Inventors: Saikiran Rapaka, Hasan Ertan Cetingul, Francisco Pereira, Dorin Comaniciu, Alma Gregory Sorensen
  • Publication number: 20160128173
    Abstract: A toroidal plasma is generated without voltage input. It can be produced using a pressurized water jet directed at a non-conductive, dielectric plate. Systems and methods employing the setup are described in which energy is generated and optionally harvested in addition to corona light.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Inventors: Morteza Gharib, Francisco Pereira, Sean A. Mendoza
  • Patent number: 9265441
    Abstract: Traumatic brain injury (TBI) in a patient is assessed. A TBI diagnosis for the patient is determined based on features from MRI data, such as anatomical features, functional features, diffusion features, connectivity features from functional MRI, connectivity features from diffusion MRI, and/or network features from the connectivity features. The TBI diagnosis is determined using a trained classifier. The classifier synthesizes the features into a single number (e.g., a confidence in the prediction of the diagnosis) and indicates the features most responsible for the diagnosis. The disease trajectory for a given patient may be predicted using the trained classifier.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: February 23, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Francisco Pereira, Benjamin Odry, Hasan Ertan Cetingul
  • Patent number: 9247235
    Abstract: A method and device for high-resolution three-dimensional (3-D) imaging which obtains camera pose using defocusing is disclosed. The device comprises a lens obstructed by a mask having two sets of apertures. The first set of apertures produces a plurality of defocused images of the object, which are used to obtain camera pose. The second set of optical filters produces a plurality of defocused images of a projected pattern of markers on the object. The images produced by the second set of apertures are differentiable from the images used to determine pose, and are used to construct a detailed 3-D image of the object. Using the known change in camera pose between captured images, the 3-D images produced can be overlaid to produce a high-resolution 3-D image of the object.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: January 26, 2016
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Jian Lu, Scott Hsieh, Francisco Pereira, Alexei Harvard
  • Patent number: 9219907
    Abstract: Described is a method and apparatus for obtaining additional information from an object and a method for surface imaging and three-dimensional imaging. Single lens, single aperture, single sensor system and stereo optic systems may be modified in order to successfully generate surface maps of objects or three-dimensional representations of target objects. A variety of the aspects of the present invention provide examples of the use of an addressable pattern in order to overcome mismatching common to standard defocusing techniques.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: December 22, 2015
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Emilio Graff, Francisco Pereira
  • Publication number: 20150312555
    Abstract: A device and method for three-dimensional (3-D) imaging using a defocusing technique is disclosed. The device comprises a lens, a central aperture located along an optical axis for projecting an entire image of a target object, at least one defocusing aperture located off of the optical axis, a sensor operable for capturing electromagnetic radiation transmitted from an object through the lens and the central aperture and the at least one defocusing aperture, and a processor communicatively connected with the sensor for processing the sensor information and producing a 3-D image of the object. Different optical filters can be used for the central aperture and the defocusing apertures respectively, whereby a background image produced by the central aperture can be easily distinguished from defocused images produced by the defocusing apertures.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 29, 2015
    Inventors: Morteza Gharib, Jian Lu, Emilio Graff, Francisco Pereira
  • Patent number: 9135695
    Abstract: A method (100) that generates attenuation correction maps for the reconstruction of PET data using MR images, such as, MR ultra-fast TE (UTE) images, Dixon MR images, as well as MR images obtained using other MR imaging methods.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: September 15, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Francisco Pereira, Helene Chopinet, James G. Reisman, Christophe Chefd'hotel
  • Patent number: 9100641
    Abstract: A device and method for three-dimensional (3-D) imaging using a defocusing technique is disclosed. The device comprises a lens, a central aperture located along an optical axis for projecting an entire image of a target object, at least one defocusing aperture located off of the optical axis, a sensor operable for capturing electromagnetic radiation transmitted from an object through the lens and the central aperture and the at least one defocusing aperture, and a processor communicatively connected with the sensor for processing the sensor information and producing a 3-D image of the object. Different optical filters can be used for the central aperture and the defocusing apertures respectively, whereby a background image produced by the central aperture can be easily distinguished from defocused images produced by the defocusing apertures.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: August 4, 2015
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Jian Lu, Emilio Graff, Francisco Pereira
  • Publication number: 20150018664
    Abstract: Traumatic brain injury (TBI) in a patient is assessed. A TBI diagnosis for the patient is determined based on features from MRI data, such as anatomical features, functional features, diffusion features, connectivity features from functional MRI, connectivity features from diffusion MRI, and/or network features from the connectivity features. The TBI diagnosis is determined using a trained classifier. The classifier synthesizes the features into a single number (e.g., a confidence in the prediction of the diagnosis) and indicates the features most responsible for the diagnosis. The disease trajectory for a given patient may be predicted using the trained classifier.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 15, 2015
    Inventors: Francisco Pereira, Benjamin Odry, Hasan Ertan Cetingul
  • Publication number: 20140368617
    Abstract: A lens and aperture device for determining 3D information. An SLR camera has a lens and aperture that allows the SLR camera to determine defocused information.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Jian Lu, Scott Hsieh, Francisco Pereira, Alexei Harvard, David Jeon
  • Patent number: 8773507
    Abstract: A lens and aperture device for determining 3D information. An SLR camera has a lens and aperture that allows the SLR camera to determine defocused information.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: July 8, 2014
    Assignee: California Institute of Technology
    Inventors: Morteza Gharib, Jian Lu, Scott Hsieh, Francisco Pereira, Alexei Harvard, David Jeon
  • Publication number: 20140104390
    Abstract: A device and method for three-dimensional (3-D) imaging using a defocusing technique is disclosed. The device comprises a lens, a central aperture located along an optical axis for projecting an entire image of a target object, at least one defocusing aperture located off of the optical axis, a sensor operable for capturing electromagnetic radiation transmitted from an object through the lens and the central aperture and the at least one defocusing aperture, and a processor communicatively connected with the sensor for processing the sensor information and producing a 3-D image of the object. Different optical filters can be used for the central aperture and the defocusing apertures respectively, whereby a background image produced by the central aperture can be easily distinguished from defocused images produced by the defocusing apertures.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 17, 2014
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Jian Lu, Emilio Graff, Francisco Pereira
  • Publication number: 20140078261
    Abstract: Described is a method and apparatus for obtaining additional information from an object and a method for surface imaging and three-dimensional imaging. Single lens, single aperture, single sensor system and stereo optic systems may be modified in order to successfully generate surface maps of objects or three-dimensional representations of target objects. A variety of the aspects of the present invention provide examples of the use of an addressable pattern in order to overcome mismatching common to standard defocusing techniques.
    Type: Application
    Filed: October 3, 2013
    Publication date: March 20, 2014
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Emilio Graff, Francisco Pereira
  • Patent number: 8619126
    Abstract: A device and method for three-dimensional (3-D) imaging using a defocusing technique is disclosed. The device comprises a lens, a central aperture located along an optical axis for projecting an entire image of a target object, at least one defocusing aperture located off of the optical axis, a sensor operable for capturing electromagnetic radiation transmitted from an object through the lens and the central aperture and the at least one defocusing aperture, and a processor communicatively connected with the sensor for processing the sensor information and producing a 3-D image of the object. Different optical filters can be used for the central aperture and the defocusing apertures respectively, whereby a background image produced by the central aperture can be easily distinguished from defocused images produced by the defocusing apertures.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: December 31, 2013
    Assignee: California Institute of Technology
    Inventors: Morteza Gharib, Jian Lu, Emilio Graff, Francisco Pereira
  • Publication number: 20130300834
    Abstract: A device and method for three-dimensional (3-D) imaging using a defocusing technique is disclosed. The device comprises a lens, at least one polarization-coded aperture obstructing the lens, a polarization-sensitive sensor operable for capturing electromagnetic radiation transmitted from an object through the lens and the at least one polarization-coded aperture, and a processor communicatively connected with the sensor for processing the sensor information and producing a 3-D image of the object.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 14, 2013
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Morteza Gharib, Emilio Graff, Francisco Pereira
  • Patent number: 8576381
    Abstract: Described is a method and apparatus for obtaining additional information from an object and a method for surface imaging and three-dimensional imaging. Single lens, single aperture, single sensor system and stereo optic systems may be modified in order to successfully generate surface maps of objects or three-dimensional representations of target objects. A variety of the aspects of the present invention provide examples of the use of an addressable pattern in order to overcome mismatching common to standard defocusing techniques.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: November 5, 2013
    Assignee: California Institute of Technology
    Inventors: Morteza Gharib, Emilio Graff, Francisco Pereira
  • Publication number: 20130266198
    Abstract: A method (100) that generates attenuation correction maps for the reconstruction of PET data using MR images, such as, MR ultra-fast TE (UTE) images, Dixon MR images, as well as MR images obtained using other MR imaging methods.
    Type: Application
    Filed: December 18, 2012
    Publication date: October 10, 2013
    Applicant: SIEMENS CORPORATION
    Inventors: Francisco Pereira, Helene Chopinet, James G. Reisman, Christophe Chefd'hotel
  • Patent number: 8514268
    Abstract: A method and device for high-resolution three-dimensional (3-D) imaging which obtains camera pose using defocusing is disclosed. The device comprises a lens obstructed by a mask having two sets of apertures. The first set of apertures produces a plurality of defocused images of the object, which are used to obtain camera pose. The second set of optical filters produces a plurality of defocused images of a projected pattern of markers on the object. The images produced by the second set of apertures are differentiable from the images used to determine pose, and are used to construct a detailed 3-D image of the object. Using the known change in camera pose between captured images, the 3-D images produced can be overlaid to produce a high-resolution 3-D image of the object.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: August 20, 2013
    Assignee: California Institute of Technology
    Inventors: Morteza Gharib, Jian Lu, Scott Hsieh, Francisco Pereira, Alexei Harvard
  • Patent number: 8472032
    Abstract: A device and method for three-dimensional (3-D) imaging using a defocusing technique is disclosed. The device comprises a lens, at least one polarization-coded aperture obstructing the lens, a polarization-sensitive sensor operable for capturing electromagnetic radiation transmitted from an object through the lens and the at least one polarization-coded aperture, and a processor communicatively connected with the sensor for processing the sensor information and producing a 3-D image of the object.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: June 25, 2013
    Assignee: California Institute of Technology
    Inventors: Morteza Gharib, Emilio Graff, Francisco Pereira