Patents by Inventor Ankur Bindal

Ankur Bindal 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: 11475545
    Abstract: An image processing circuit for correcting a distorted image includes an internal memory and a correction circuit. The internal memory of the image processing circuit is configured to store a radial look-up table (LUT), a set of tangential LUTs, and co-ordinates of a correction center of the distorted image. The radial LUT and the set of tangential LUTs include first and second sets of parameters to correct radial and tangential distortion of the distorted image, respectively. The correction circuit is configured to reconstruct portions of the correction LUT on-the-fly based on the radial LUT, the set of tangential LUTs, and the co-ordinates of the correction center, and correct portions of the distorted image based on the reconstructed portions of correction LUT to generate the portions of the corrected image.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: October 18, 2022
    Assignee: NXP USA, Inc.
    Inventors: Ankur Bindal, Sharath Subramanya Naidu, Juhee Mala
  • Patent number: 11443411
    Abstract: A system and method for correcting image distortion is provided. The system and method remaps pixel position of distorted images using a combination of radial distortion correction and tangential distortion correction lookup tables consuming less physical memory. The solution conserves both memory and memory access bandwidth. The radial distortion correction lookup table is formed by taking advantage of radial distortion being generally symmetric about a determined optical center of the camera lens. This symmetry allows for use of a quarter LUT for correction in all quadrants of a distorted image. In addition, tangential distortion can be corrected in a symmetric manner that saves memory space as well.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: September 13, 2022
    Assignee: NXP USA, Inc.
    Inventors: Ankur Bindal, Michael Andreas Staudenmaier, Sharath Subramanya Naidu
  • Publication number: 20220012854
    Abstract: A system and method for correcting image distortion is provided. The system and method remaps pixel position of distorted images using a combination of radial distortion correction and tangential distortion correction lookup tables consuming less physical memory. The solution conserves both memory and memory access bandwidth. The radial distortion correction lookup table is formed by taking advantage of radial distortion being generally symmetric about a determined optical center of the camera lens. This symmetry allows for use of a quarter LUT for correction in all quadrants of a distorted image. In addition, tangential distortion can be corrected in a symmetric manner that saves memory space as well.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 13, 2022
    Applicant: NXP USA, Inc.
    Inventors: Ankur Bindal, Michael Andreas Staudenmaier, Sharath Subramanya Naidu
  • Publication number: 20210374919
    Abstract: An image processing circuit for correcting a distorted image includes an internal memory and a correction circuit. The internal memory of the image processing circuit is configured to store a radial look-up table (LUT), a set of tangential LUTs, and co-ordinates of a correction center of the distorted image. The radial LUT and the set of tangential LUTs include first and second sets of parameters to correct radial and tangential distortion of the distorted image, respectively. The correction circuit is configured to reconstruct portions of the correction LUT on-the-fly based on the radial LUT, the set of tangential LUTs, and the co-ordinates of the correction center, and correct portions of the distorted image based on the reconstructed portions of correction LUT to generate the portions of the corrected image.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Inventors: Ankur Bindal, Sharath Subramanya Naidu, Juhee Mala