Patents by Inventor Vishal R. Agarwal

Vishal R. Agarwal 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, methods and, media for determining object motion in three dimensions using speckle images
    Patent number: 10152798
    Abstract: In accordance with some embodiments, systems, methods and media for determining object motion in three dimensions using speckle images are provided. In some embodiments, a system for three dimensional motion estimation is provided, comprising: a light source; an image sensor; and a hardware processor programmed to: cause the light source to emit light toward the scene; cause the image sensor to capture a first defocused speckle image of the scene at a first time and capture a second defocused speckle image of the scene at a second time; generate a first scaled version of the first defocused image; generate a second scaled version of the first defocused image; compare each of the first defocused image, the first scaled version, and the second scaled version to the second defocused image; and determine axial and lateral motion of the object based on the comparisons.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: December 11, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Mohit Gupta, Brandon M. Smith, Pratham H. Desai, Vishal R. Agarwal
  • SYSTEMS, METHODS AND, MEDIA FOR DETERMINING OBJECT MOTION IN THREE DIMENSIONS USING SPECKLE IMAGES
    Publication number: 20180293739
    Abstract: In accordance with some embodiments, systems, methods and media for determining object motion in three dimensions using speckle images are provided. In some embodiments, a system for three dimensional motion estimation is provided, comprising: a light source; an image sensor; and a hardware processor programmed to: cause the light source to emit light toward the scene; cause the image sensor to capture a first defocused speckle image of the scene at a first time and capture a second defocused speckle image of the scene at a second time; generate a first scaled version of the first defocused image; generate a second scaled version of the first defocused image; compare each of the first defocused image, the first scaled version, and the second scaled version to the second defocused image; and determine axial and lateral motion of the object based on the comparisons.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 11, 2018
    Inventors: Mohit Gupta, Brandon M. Smith, Pratham H. Desai, Vishal R. Agarwal