Patents by Inventor Nikos P. Andrianopoulos

Nikos P. Andrianopoulos 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).

  • System and method for remote full field three-dimensional displacement and strain measurements
    Patent number: 9046353
    Abstract: A method and system for measuring full field deformation characteristics in three dimensions of a body upon which a pattern of visible marks has been applied. The method includes receiving images of the pattern of marks from at least two digital video cameras as the specimen deforms. A computer processor identifies the centroids of each of the two camera images of the body in a first frame, matches the centroids of the marks in the two images, and generates a three-dimensional representation of the centroids based on the two images, and repeats these steps for the images from the two cameras in a subsequent frame. The computer processor calculates the displacement vector between a three dimensional representation of the centroids and the subsequent three dimensional representation of the centroids, and calculates full field displacement and strain fields based on the displacement vector.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: June 2, 2015
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John G. Michopoulos, Athanasios Iliopoulos, Nikos P. Andrianopoulos
  • System and Method for Remote Full Field Three-Dimensional Displacement and Strain Measurements
    Publication number: 20130063570
    Abstract: A method and system for measuring full field deformation characteristics in three dimensions of a body upon which a pattern of visible marks has been applied. The method includes receiving images of the pattern of marks from at least two digital video cameras as the specimen deforms. A computer processor identifies the centroids of each of the two camera images of the body in a first frame, matches the centroids of the marks in the two images, and generates a three-dimensional representation of the centroids based on the two images, and repeats these steps for the images from the two cameras in a subsequent frame. The computer processor calculates the displacement vector between a three dimensional representation of the centroids and the subsequent three dimensional representation of the centroids, and calculates full field displacement and strain fields based on the displacement vector.
    Type: Application
    Filed: August 2, 2012
    Publication date: March 14, 2013
    Inventors: John G. Michopoulos, Athanasios Iliopoulos, Nikos P. Andrianopoulos