Patents by Inventor Gopal Karanam

Gopal Karanam 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).

  • Edge orientation for second derivative edge detection methods
    Patent number: 9639949
    Abstract: An improved algorithm for edge detection is provided that utilizes the second order derivative of the intensity distribution function of an image to provide edge orientation information for the detected edges. An exemplary embodiment of the improved algorithm includes determining the second order derivative of the intensity distribution function, identifying zero-crossings in the horizontal and vertical directions, assigning angle information to the identified zero-crossings in the horizontal and vertical directions; and identifying an edge orientation based the assigned angle information for the horizontal and vertical zero-crossing of the edge and adjacent edges.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: May 2, 2017
    Assignee: ANALOG DEVICES, INC.
    Inventors: Gopal Karanam, Benno Kusstatscher
  • Dynamic line-detection system for processors having limited internal memory
    Patent number: 9349069
    Abstract: A line-detection system computes, using a local memory, a result of a partial conversion of image-space pixel data from image space to Hough space. The result is analyzed for edges corresponding to a line present in the partial conversion. The line is compared against other lines detected in previously computed partial results to identify a longest line in the image.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: May 24, 2016
    Assignee: Analog Devices, Inc.
    Inventors: Raghavendra Habbu, Akshayakumar Haribhatt, Rajesh Vijayakumar, Rajesh Mahapatra, Gopal Karanam
  • Dual control of a dynamically reconfigurable pipelined pre-processor
    Patent number: 9251553
    Abstract: A pipelined video pre-processor includes a plurality of configurable image-processing modules. The modules may be configured using direct processor control, DMA access, or both. A block-control list, accessible via DMA, facilitates configuration of the modules in a manner similar to direct processor control. Parameters in the modules may be updated on a frame-by-frame basis.
    Type: Grant
    Filed: October 14, 2012
    Date of Patent: February 2, 2016
    Assignee: Analog Devices, Inc.
    Inventors: Satishchandra G. Rao, Boris Lerner, Robert Bushey, Michael Meyer-Pundsack, Benno Kusstatscher, Sreejith Kazhayil, Gokul Muthusamy, Gopal Karanam, Praveen Sanjeev
  • DYNAMIC LIINE-DETECTION SYSTEM FOR PROCESSORS HAVING LIMITED INTERNAL MEMORY
    Publication number: 20130128045
    Abstract: A line-detection system computes, using a local memory, a result of a partial conversion of image-space pixel data from image space to Hough space. The result is analyzed for edges corresponding to a line present in the partial conversion. The line is compared against other lines detected in previously computed partial results to identify a longest line in the image.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 23, 2013
    Applicant: Analog Devices, Inc.
    Inventors: Raghavendra Habbu, Akshayakumar Haribhatt, Rajesh Vijayakumar, Rajesh Mahapatra, Gopal Karanam
  • Edge orientation for second derivative edge detection methods
    Publication number: 20110222779
    Abstract: An improved algorithm for edge detection is provided that utilizes the second order derivative of the intensity distribution function of an image to provide edge orientation information for the detected edges. An exemplary embodiment of the improved algorithm includes determining the second order derivative of the intensity distribution function, identifying zero-crossings in the horizontal and vertical directions, assigning angle information to the identified zero-crossings in the horizontal and vertical directions; and identifying an edge orientation based the assigned angle information for the horizontal and vertical zero-crossing of the edge and adjacent edges.
    Type: Application
    Filed: March 15, 2010
    Publication date: September 15, 2011
    Inventors: Gopal Karanam, Benno Kusstatscher