Patents by Inventor Pravakar Roy

Pravakar Roy 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).

  • Semantic structure from motion for orchard reconstruction
    Patent number: 11004262
    Abstract: A method includes constructing a three-dimensional model of a front side of a row of trees based on a plurality of images of the front side of the row of trees and constructing a three-dimensional model of a back side of the row of trees based on a plurality of images of the back side of the row of trees. The three-dimensional model of the front side of the row of trees is merged with the three-dimensional model of the back side of the row of trees by linking a trunk in the three-dimensional model of the front side to a trunk in the three-dimensional model of the back side to form a merged three-dimensional model of the row of trees. The merged three-dimensional model of the row of trees is used to determine a physical attribute of the row of trees.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: May 11, 2021
    Assignee: Regents of the University of Minnesota
    Inventors: Ibrahim Volkan Isler, Wenbo Dong, Pravakar Roy
  • SEMANTIC STRUCTURE FROM MOTION FOR ORCHARD RECONSTRUCTION
    Publication number: 20200058162
    Abstract: A method includes constructing a three-dimensional model of a front side of a row of trees based on a plurality of images of the front side of the row of trees and constructing a three-dimensional model of a back side of the row of trees based on a plurality of images of the back side of the row of trees. The three-dimensional model of the front side of the row of trees is merged with the three-dimensional model of the back side of the row of trees by linking a trunk in the three-dimensional model of the front side to a trunk in the three-dimensional model of the back side to form a merged three-dimensional model of the row of trees. The merged three-dimensional model of the row of trees is used to determine a physical attribute of the row of trees.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 20, 2020
    Inventors: Ibrahim Volkan Isler, Wenbo Dong, Pravakar Roy
  • Robotic surveying of fruit plants
    Patent number: 9922261
    Abstract: A method of machine vision includes identifying contours of fruits in a first image and a second image and performing two-way matching of contours to identify pairs of matched contours, each pair comprising a respective first contour in the first image that matches a respective second contour in the second image. For each pair of matched contours, a respective affine transformation that transforms points in the respective second contour to points in the respective first contour is identified. The second image is mapped to the first image using the affine transformations to form a composite image and the number of fruits in the composite image is counted.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: March 20, 2018
    Assignee: Regents of the University of Minnesota
    Inventors: Volkan Isler, Pratap Rajkumar Tokekar, Nikolaos Stefas, Pravakar Roy
  • ROBOTIC SURVEYING OF FRUIT PLANTS
    Publication number: 20160307329
    Abstract: A method of machine vision includes identifying contours of fruits in a first image and a second image and performing two-way matching of contours to identify pairs of matched contours, each pair comprising a respective first contour in the first image that matches a respective second contour in the second image. For each pair of matched contours, a respective affine transformation that transforms points in the respective second contour to points in the respective first contour is identified. The second image is mapped to the first image using the affine transformations to form a composite image and the number of fruits in the composite image is counted.
    Type: Application
    Filed: April 18, 2016
    Publication date: October 20, 2016
    Inventors: Volkan Isler, Pratap Rajkumar Tokekar, Nikolaos Stefas, Pravakar Roy