Patents by Inventor Nukul Sanjay Shah

Nukul Sanjay Shah 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: 11942013
    Abstract: Disclosed are techniques for improving the color uniformity of a display of a display device. A plurality of images of the display are captured using an image capture device. The plurality of images are captured in a color space, with each image corresponding to one of a plurality of color channels. A global white balance is performed to the plurality of images to obtain a plurality of normalized images. A local white balance is performed to the plurality of normalized images to obtain a plurality of correction matrices. Performing the local white balance includes defining a set of weighting factors based on a figure of merit and computing a plurality of weighted images based on the plurality of normalized images and the set of weighting factors. The plurality of correction matrices are computed based on the plurality of weighted images.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: March 26, 2024
    Assignee: Magic Leap, Inc.
    Inventors: Kevin Messer, Miller Harry Schuck, III, Nicholas Ihle Morley, Po-Kang Huang, Nukul Sanjay Shah, Marshall Charles Capps, Robert Blake Taylor
  • Publication number: 20240046432
    Abstract: The systems and methods described can include approaches to calibrate head-mounted displays for improved viewing experiences. Some methods include receiving data of a first target image associated with an undeformed state of a first eyepiece of a head-mounted display device; receiving data of a first captured image associated with deformed state of the first eyepiece of the head-mounted display device; determining a first transformation that maps the first captured image to the image; and applying the first transformation to a subsequent image for viewing on the first eyepiece of the head-mounted display device.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 8, 2024
    Inventors: Lionel Ernest Edwin, Samuel A. Miller, Etienne Gregoire Grossmann, Brian Christopher Clark, Michael Robert Johnson, Wenyi Zhao, Nukul Sanjay Shah, Po-Kang Huang
  • Patent number: 11854171
    Abstract: The systems and methods described can include approaches to calibrate head-mounted displays for improved viewing experiences. Some methods include receiving data of a first target image associated with an undeformed state of a first eyepiece of a head-mounted display device; receiving data of a first captured image associated with deformed state of the first eyepiece of the head-mounted display device; determining a first transformation that maps the first captured image to the image; and applying the first transformation to a subsequent image for viewing on the first eyepiece of the head-mounted display device.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: December 26, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Lionel Ernest Edwin, Samuel A. Miller, Etienne Gregoire Grossmann, Brian Christopher Clark, Michael Robert Johnson, Wenyi Zhao, Nukul Sanjay Shah, Po-Kang Huang
  • Publication number: 20220092747
    Abstract: The systems and methods described can include approaches to calibrate head-mounted displays for improved viewing experiences. Some methods include receiving data of a first target image associated with an undeformed state of a first eyepiece of a head-mounted display device; receiving data of a first captured image associated with deformed state of the first eyepiece of the head-mounted display device; determining a first transformation that maps the first captured image to the image; and applying the first transformation to a subsequent image for viewing on the first eyepiece of the head-mounted display device.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 24, 2022
    Inventors: Lionel Ernest Edwin, Samuel A. Miller, Etienne Gregoire Grossmann, Brian Christopher Clark, Michael Robert Johnson, Wenyi Zhao, Nukul Sanjay Shah, Po-Kang Huang
  • Publication number: 20210407365
    Abstract: Disclosed are techniques for improving the color uniformity of a display of a display device. A plurality of images of the display are captured using an image capture device. The plurality of images are captured in a color space, with each image corresponding to one of a plurality of color channels. A global white balance is performed to the plurality of images to obtain a plurality of normalized images. A local white balance is performed to the plurality of normalized images to obtain a plurality of correction matrices. Performing the local white balance includes defining a set of weighting factors based on a figure of merit and computing a plurality of weighted images based on the plurality of normalized images and the set of weighting factors. The plurality of correction matrices are computed based on the plurality of weighted images.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 30, 2021
    Applicant: Magic Leap, Inc.
    Inventors: Kevin Messer, Miller Harry Schuck, III, Nicholas Ihle Morley, Po-Kang Huang, Nukul Sanjay Shah, Marshall Charles Capps, Robert Blake Taylor
  • Patent number: 11200646
    Abstract: The systems and methods described can include approaches to calibrate head-mounted displays for improved viewing experiences. Some methods include receiving data of a first target image associated with an undeformed state of a first eyepiece of a head-mounted display device; receiving data of a first captured image associated with deformed state of the first eyepiece of the head-mounted display device; determining a first transformation that maps the first captured image to the image; and applying the first transformation to a subsequent image for viewing on the first eyepiece of the head-mounted display device.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: December 14, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Lionel Ernest Edwin, Samuel A. Miller, Etienne Gregoire Grossmann, Brian Christopher Clark, Michael Robert Johnson, Wenyi Zhao, Nukul Sanjay Shah, Po-Kang Huang
  • Publication number: 20210217147
    Abstract: The systems and methods described can include approaches to calibrate head-mounted displays for improved viewing experiences. Some methods include receiving data of a first target image associated with an undeformed state of a first eyepiece of a head-mounted display device; receiving data of a first captured image associated with deformed state of the first eyepiece of the head-mounted display device; determining a first transformation that maps the first captured image to the image; and applying the first transformation to a subsequent image for viewing on the first eyepiece of the head-mounted display device.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 15, 2021
    Inventors: Lionel Ernest Edwin, Samuel A. Miller, Etienne Gregoire Grossmann, Brian Christopher Clark, Michael Robert Johnson, Wenyi Zhao, Nukul Sanjay Shah, Po-Kang Huang
  • Publication number: 20210215536
    Abstract: A method for characterizing a digital color camera includes, for each of three primary colors used in a field sequential color virtual image, determining a conversion model for each color using RGB values and the color-measurement values. For each primary color, the method includes illuminating a display device using an input light beam of a primary color having spectral properties representative of a light beam in a virtual image in a wearable device. The method includes capturing, with the digital color camera, an image of the display device, and determining, from the image, RGB values for each primary color. The method includes capturing, with a color-measurement device, a color-measurement value associated with each corresponding primary color at the display device, thereby acquiring a color-measurement value in an absolute color space. A conversion model for each color is determined using RGB values and the color-measurement values.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 15, 2021
    Applicant: Magic Leap, Inc.
    Inventors: Miller Harry Schuck, III, Lei Zhang, Etienne Gregoire Grossmann, Nukul Sanjay Shah, Ohad Zohar, Robert Zito, Nicholas Ihle Morley, Jason Schaefer, Zhiheng Jia, Eric C. Browy, Marshall Charles Capps, Kazunori Tanaka, Grace Vesom, John Monos