Patents by Inventor Nikul H. Ukani

Nikul H. Ukani 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).

  • Systems and methods for detecting motion using local phase information
    Patent number: 9892518
    Abstract: Systems and methods for the detection of motion in a multi-dimensional signal are provided. According to aspects of the disclosure, data representing a time sequence of frames of a video stream is received. A multi-dimensional Gaussian window in is then constructed. Each frame of the received data is divided into a plurality of blocks and, for each block in the plurality of blocks, each pixel in the block is multiplied with a corresponding pixel of the Gaussian window to obtain a windowed video block. The FFT of the windowed video block is computed to obtain an amplitude and phase thereof. The occurrence of motion in the block is then determined based on the computed phase of the windowed video block.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: February 13, 2018
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Aurel Lazar, Nikul H. Ukani, Yiyin Zhou
  • SYSTEMS AND METHODS FOR DETECTING MOTION USING LOCAL PHASE INFORMATION
    Publication number: 20170213350
    Abstract: Systems and methods for the detection of motion in a multi-dimensional signal are provided. According to aspects of the disclosure, data representing a time sequence of frames of a video stream is received. A multi-dimensional Gaussian window in is then constructed. Each frame of the received data is divided into a plurality of blocks and, for each block in the plurality of blocks, each pixel in the block is multiplied with a corresponding pixel of the Gaussian window to obtain a windowed video block. The FFT of the windowed video block is computed to obtain an amplitude and phase thereof. The occurrence of motion in the block is then determined based on the computed phase of the windowed video block.
    Type: Application
    Filed: June 9, 2016
    Publication date: July 27, 2017
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Aurel Lazar, Nikul H. Ukani, Yiyin Zhou