Patents by Inventor Aditi Majumder

Aditi Majumder 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: 20160345858
    Abstract: In accordance with various embodiments herein, disclosed herein is an apparatus comprising an imaging probe-based device operably linked to an automated tracking system. Furthermore, in various embodiments, the apparatus may be used to track the position and movement of a handheld imaging probe, including with respect to a subject's 3D surface profile. In one embodiment, a device may be used to track the position and movement of a handheld imaging probe with respect to a subject's 3D surface profile, while simultaneously acquiring optical data.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 1, 2016
    Applicant: The Regents of the University of California
    Inventors: Bruce J. Tromberg, Kyle Cutler, Chris Van Wagenen, Seung-ha Lee, Thomas O'Sullivan, Gopi Meenakshisundaram, Aditi Majumder, Albert Cerussi
  • Patent number: 9218061
    Abstract: A method of audio and video synchronization may include capturing an image by each of a plurality of cameras. The images and audio may be compared with each other for synchronization.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: December 22, 2015
    Assignee: The Regents of the University of California
    Inventors: Aditi Majumder, Fadi Kurdahi, Kiarash Amiri, Magda El Zarki, Shih-Hsien Yang
  • Patent number: 9195121
    Abstract: A method for registering multiple projectors on a vertically extruded three dimensional display surface with a known aspect ratio includes recovering both the camera parameters and the three dimensional shape of the surface from a single image of the display surface from an uncalibrated camera, capturing images from the projectors to relate the projector coordinates with the display surface points, and segmenting parts of the image for each projector to register the projectors to create a seamlessly wall-paper projection on the display surface using a representation between the projector coordinates with display surface points using a rational Bezier patch. A method for performing a deterministic geometric auto-calibration to find intrinsic and extrinsic parameters of each projector is included.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: November 24, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Behzad Sajadi, Aditi Majumder
  • Patent number: 9183771
    Abstract: A projector configured to provide higher resolution output without increasing pixel resolution in a light modulator is disclosed. The projector may introduce an optical element between a light modulator and an imaging lens. The optical element may provide pixel sharing of a target image. The pixel sharing may be produced by, for example, making smaller copies of pixels. Selected copies of pixels may be passed to the imaging lens to display an output image with selected areas of higher density pixels.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: November 10, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Aditi Majumder, Behzad Sajadi, Gopi Meenakshisundaram
  • Patent number: 9064312
    Abstract: An augmented reality scene may be registered onto an arbitrary surface. A camera may capture an image of the arbitrary surface. The camera may analyze the surface geometry of the arbitrary surface. In some embodiments, a processing computing device may analyze data captured by the camera and an adjacent camera to reconstruct the surface geometry of the arbitrary surface. A scene may be registered to a three dimensional coordinate system corresponding to the arbitrary surface. A projector may project the scene onto the arbitrary surface according to the registration so that the scene may not display as being distorted.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: June 23, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Aditi Majumder, Behzad Sajadi
  • Patent number: 9052584
    Abstract: A method includes generating in a computer a representation for the color transfer function both direct and inverse, of a nonideal source device to those in a target device significantly different than the source device, using higher-dimensional Bezier patches by using a non-linear parameterization of the Bezier patches in the XYZ space for converting the RGB colors in the source device. The method is illustrated in an application for processing spatial variation in luminance and chrominance in a multiple projector display, which include the steps of balancing per projector white point, morphing per pixel chrominance gamut, constraining per pixel perceptual luminance; and smoothing per pixel Bezier based luminance.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: June 9, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Aditi Majumder, Gopi Meenakshisundaram, Behzad Sajadi
  • Patent number: 8872799
    Abstract: A method of distributed/cooperative/collaborative gesture management may comprise queuing actions of gestures as the gestures move across a display, processing the actions of each of the gestures by a projector in which the projector's display is close to a gesture, sending an anticipatory action message that one of the gestures is predicted to enter a display region of a projector, processing the actions of one of the gestures by a projector in which the projector's display is close to the one of the gestures, and in response to the one of the gestures being in an overlapping display projected by overlapping projectors, the actions of the one of the gestures are processed by the overlapping projector with the smallest identifier.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: October 28, 2014
    Assignee: The Regents of the University of California
    Inventor: Aditi Majumder
  • Publication number: 20140035919
    Abstract: A projector configured to provide higher resolution output without increasing pixel resolution in a light modulator is disclosed. The projector may introduce an optical element between a light modulator and an imaging lens. The optical element may provide pixel sharing of a target image. The pixel sharing may be produced by, for example, making smaller copies of pixels. Selected copies of pixels may be passed to the imaging lens to display an output image with selected areas of higher density pixels.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 6, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: ADITI MAJUMDER, BEHZAD SAJADI, GOPI MEENAKSHISUNDARAM
  • Publication number: 20120320200
    Abstract: A method of audio and video synchronization may include capturing an image by each of a plurality of cameras. The images and audio may be compared with each other for synchronization.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 20, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, A CALIFORNIA CORPORATION
    Inventors: ADITI MAJUMDER, FADI KURDAHI, KIARASH AMIRI, MAGDA EL ZARKI, SHIH-HSIEN YANG
  • Publication number: 20120319997
    Abstract: A method of distributed/cooperative/collaborative gesture management may comprise queuing actions of gestures as the gestures move across a display, processing the actions of each of the gestures by a projector in which the projector's display is close to a gesture, sending an anticipatory action message that one of the gestures is predicted to enter a display region of a projector, processing the actions of one of the gestures by a projector in which the projector's display is close to the one of the gestures, and in response to the one of the gestures being in an overlapping display projected by overlapping projectors, the actions of the one of the gestures are processed by the overlapping projector with the smallest identifier.
    Type: Application
    Filed: October 19, 2011
    Publication date: December 20, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: ADITI MAJUMDER
  • Publication number: 20120098937
    Abstract: A method for registering multiple projectors on a vertically extruded three dimensional display surface with a known aspect ratio includes recovering both the camera parameters and the three dimensional shape of the surface from a single image of the display surface from an uncalibrated camera, capturing images from the projectors to relate the projector coordinates with the display surface points, and segmenting parts of the image for each projector to register the projectors to create a seamlessly wall-paper projection on the display surface using a representation between the projector coordinates with display surface points using a rational Bezier patch. A method for performing a deterministic geometric auto-calibration to find intrinsic and extrinsic parameters of each projector is included.
    Type: Application
    Filed: April 28, 2010
    Publication date: April 26, 2012
    Inventors: Behzad Sajadi, Aditi Majumder
  • Publication number: 20120069022
    Abstract: A method includes generating in a computer a representation for the color transfer function both direct and inverse, of a nonideal source device to those in a target device significantly different than the source device, using higher-dimensional Bezier patches by using a non-linear parameterization of the Bezier patches in the XYZ space for converting the RGB colors in the source device. The method is illustrated in an application for processing spatial variation in luminance and chrominance in a multiple projector display, which include the steps of balancing per projector white point, morphing per pixel chrominance gamut, constraining per pixel perceptual luminance; and smoothing per pixel Bezier based luminance.
    Type: Application
    Filed: April 28, 2010
    Publication date: March 22, 2012
    Inventors: Aditi Majumder, Gopi Meenakshisundaram, Behzad Sajadi
  • Patent number: 8098265
    Abstract: This invention describes an apparatus, methods and a system for high speed hierarchical multiplexing the native color primaries of SSL-based display systems in order to improve color quality and stability as well as brightness and the efficiency of the display system.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: January 17, 2012
    Assignee: Ostendo Technologies, Inc.
    Inventors: Hussein S. El-Ghoroury, Aditi Majumder, Robert G. W. Brown, Andrew J. Lanzone
  • Patent number: 7942530
    Abstract: An asynchronous, distributed, and calibrated apparatus provides a composite display from a plurality of plug-and-play projectors. The apparatus comprises a plurality of self-sufficient modules. Each module comprises at least one plug-and-play projector of the plurality of plug-and-play projectors. A camera is coupled to the projector. A software or firmware controlled, computation and communication circuit is coupled to the projector and executes a single-program-multiple-data (SPMD) calibration algorithm that simultaneously runs on each self-sufficient module to generate a scalable and reconfigurable composite display without any need for user input or a central server.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: May 17, 2011
    Assignee: The Regents of the University of California
    Inventors: Aditi Majumder, Pinaki Sinha, Ezekiel S. Bhasker
  • Publication number: 20100091050
    Abstract: This invention describes an apparatus, methods and a system for high speed hierarchical multiplexing the native color primaries of SSL-based display systems in order to improve color quality and stability as well as brightness and the efficiency of the display system.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 15, 2010
    Applicant: OSTENDO TECHNOLOGIES, INC.
    Inventors: Hussein S. El-Ghoroury, Aditi Majumder, Robert G. W. Brown, Andrew J. Lanzone
  • Publication number: 20080100805
    Abstract: An asynchronous, distributed, and calibrated apparatus provides a composite display from a plurality of plug-and-play projectors. The apparatus comprises a plurality of self-sufficient modules. Each module comprises at least one plug-and-play projector of the plurality of plug-and-play projectors. A camera is coupled to the projector. A software or firmware controlled, computation and communication circuit is coupled to the projector and executes a single-program-multiple-data (SPMD) calibration algorithm that simultaneously runs on each self-sufficient module to generate a scalable and reconfigurable composite display without any need for user input or a central server.
    Type: Application
    Filed: February 8, 2007
    Publication date: May 1, 2008
    Applicant: The Regents of the University of California
    Inventors: Aditi Majumder, Pinaki Sinha, Ezekiel S. Bhasker
  • Patent number: 7038727
    Abstract: A method is provided to smooth photometric variations across multi-projector displays. Photometric calibration is performed to generate a luminance attenuation map (LAM) for each projector. An image for each projector is modified using the luminance attenuation map (LAM) for each projector to provide image correction in real time. In the photometric calibration step a digital camera is used to measure the color response of the multi-projector display. Using the generated luminance attenuation map (LAM) for each projector for image correction in real time smoothes out distracting color variations across the multi-projector display while maximizing a perceived dynamic range of the display.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: May 2, 2006
    Assignee: The University of Chicago
    Inventors: Aditi Majumder, Rick L. Stevens
  • Publication number: 20040085477
    Abstract: A method is provided to smooth photometric variations across multi-projector displays. Photometric calibration is performed to generate a luminance attenuation map (LAM) for each projector. An image for each projector is modified using the luminance attenuation map (LAM) for each projector to provide image correction in real time. In the photometric calibration step a digital camera is used to measure the color response of the multi-projector display. Using the generated luminance attenuation map (LAM) for each projector for image correction in real time smoothes out distracting color variations across the multi-projector display while maximizing a perceived dynamic range of the display.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Applicant: THE UNIVERSITY OF CHICAGO
    Inventors: Aditi Majumder, Rick L. Stevens