Patents by Inventor Steffano Soatto

Steffano Soatto 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).

  • Apparatus and method for tracking handwriting from visual input
    Patent number: 6044165
    Abstract: A system for detecting movement of a writing implement relative to a writing surface to determine the path of the writing implement. The writing implement tip is determined within the image and used to form a kernel. The determination is made either manually, by looking for a predetermined pen tip shape, or by looking for a position of maximum motion in the image. That kernel is tracked from frame to frame to define the path of the writing implement. The tracking is accomplished by correlating the kernel to the image: either to the whole image, to a portion of the image near the last position of the kernel, or to a portion of the image predicted by a prediction filter.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: March 28, 2000
    Assignee: California Institute of Technology
    Inventors: Pietro Perona, Mario Munich, Steffano Soatto