Patents by Inventor Nitesh Shroff

Nitesh Shroff 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: 8432434
    Abstract: A dynamic scene is reconstructed as depths and an extended depth of field video by first acquiring, with a camera including a lens and sensor, a focal stack of the dynamic scene while changing a focal depth. An optical flow between the frames of the focal stack is determined, and the frames are warped according to the optical flow to align the frames and to generate a virtual static focal stack. Finally, a depth map and a texture map for each virtual static focal stack is generated using a depth from defocus, wherein the texture map corresponds to an EDOF image.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: April 30, 2013
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Ashok Veeraraghavan, Nitesh Shroff, Yuichi Taguchi, Cuneyt Oncel Tuzel
  • Publication number: 20130010067
    Abstract: A dynamic scene is reconstructed as depths and an extended depth of field video by first acquiring, with a camera including a lens and sensor, a focal stack of the dynamic scene while changing a focal depth. An optical flow between the frames of the focal stack is determined, and the frames are warped according to the optical flow to align the frames and to generate a virtual static focal stack. Finally, a depth map and a texture map for each virtual static focal stack is generated using a depth from defocus, wherein the texture map corresponds to an EDOF image.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Inventors: Ashok Veeraraghavan, Nitesh Shroff, Yuichi Taguchi, Cuneyt Oncel Tuzel
  • Patent number: 8165403
    Abstract: A pose of an object is determine by acquiring sets of images of the object by a camera, wherein the object has a thread arranged on a surface such that a local region of the object appears substantially spherical, wherein the camera is at a different point of view for each set, and wherein each image in each set is acquired while the scene is illuminated from a different direction. A set of features is extracted from each image, wherein the features correspond to points on the surface having normals towards the camera. A parametric line is fitted to the points for each image, wherein the line lies on a plane joining a center of the camera and an axis of the object. Then, geometric constraints are applied to lines to determine the pose of the object.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: April 24, 2012
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Srikumar Ramalingam, Ashok Veeraraghavan, Yuichi Taguchi, Cuneyt Oncel Tuzel, Nitesh Shroff