Patents by Inventor Amitha Perera

Amitha Perera 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 automatic person counting and detection of specific events
    Patent number: 7596241
    Abstract: A system for detecting and counting individuals in a stationary or moving crowd based on a digital or digitized image captured from a single camera. Initial information is assumed based on a foot-to-head plane homology, where a geometric construct is developed to best enclose image features with a high probability of being an individual within a crowd. These geometric constructs are then subjected to further probabilistic analysis to determine individuals. The vector track of each individual is determined to validate the determination of a group of features as individuals, thereby compensating for occlusion of an individual within any given frame image. A virtual gate is then employed to count the individuals moving past the virtual gate. Also, by weighting portions of the individual, events near the gate can be predicted.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: September 29, 2009
    Assignee: General Electric Company
    Inventors: Jens Rittscher, Peter Henry Tu, Nils Oliver Krahnstoever, Amitha Perera, Thomas Baby Sebastian, Xiaoming Liu
  • System and method for automatic person counting and detection of specific events
    Publication number: 20070003141
    Abstract: A system for detecting and counting individuals in a stationary or moving crowd based on a digital or digitized image captured from a single camera. Initial information is assumed based on a foot-to-head plane homology, where a geometric construct is developed to best enclose image features with a high probability of being an individual within a crowd. These geometric constructs are then subjected to further probabilistic analysis to determine individuals. The vector track of each individual is determined to validate the determination of a group of features as individuals, thereby compensating for occlusion of an individual within any given frame image. A virtual gate is then employed to count the individuals moving past the virtual gate. Also, by weighting portions of the individual, events near the gate can be predicted.
    Type: Application
    Filed: November 30, 2005
    Publication date: January 4, 2007
    Inventors: Jens Rittscher, Peter Tu, Nils Krahnstoever, Amitha Perera, Thomas Sebastian, Xiaoming Liu