Patents by Inventor Makarov Igor

Makarov Igor 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).

  • Method and system for determining visible parts of transparent and nontransparent surfaces of there-dimensional objects
    Patent number: 6850234
    Abstract: There is provided a system, method and article of manufacture for determining the visibility of surfaces and/or parts of surfaces of three-dimensional objects, which are projected on a view plane from data defining these surfaces, comprising: a) deriving data indicative of boundaries of projections of the surfaces on the view plane; b) determining (preferably, by recursion) a finite number of subdivisions of the view plane thereby providing perimeters of each of the subdivisions; c) determining points of intersection of the perimeter of one of the subdivisions with the boundaries of the surfaces projected on the view plane; d) determining the distribution of surfaces visible along the perimeter of the of one of the subdivisions by utilizing the points of intersection; and e) determining if the one subdivision is “simple enough” of “terminal” from at least the distribution of surfaces visible along the perimeter of the one subdivision.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: February 1, 2005
    Assignee: 3rd Algorithm Limited Partnership
    Inventors: Natalia Zviaguina, Makarov Igor
  • Method and system for determining visible parts of transparent and nontransparent surfaces of three-dimensional objects
    Publication number: 20020118188
    Abstract: There is provided a system, method and article of manufacture for determining the visibility of surfaces and/or parts of surfaces of three-dimensional objects, which are projected on a view plane from data defining these surfaces, comprising: a) deriving data indicative of boundaries of projections of the surfaces on the view plane; b) determining (preferably, by recursion) a finite number of subdivisions of the view plane thereby providing perimeters of each of the subdivisions; c) determining points of intersection of the perimeter of one of the subdivisions with the boundaries of the surfaces projected on the view plane; d) determining the distribution of surfaces visible along the perimeter of the of one of the subdivisions by utilizing the points of intersection; and e) determining if the one subdivision is “simple enough” of “terminal” from at least the distribution of surfaces visible along the perimeter of the one subdivision.
    Type: Application
    Filed: April 4, 2001
    Publication date: August 29, 2002
    Inventors: Natalia Zviaguina, Makarov Igor