Patents Assigned to Technopolis CSATA Novus Ortus
  • Object movement estimator using one-dimensional optical flow
    Patent number: 5598488
    Abstract: An object movement estimator (400) predicts optical flow by estimating changes in sensed images using one-dimensional correlations. Sensed image portions are stored at a first instant of time and compared with sensed image portions at a second instant of time. An optimal flow is estimated by performing a one-dimensional correlation of the sensed image portions at the first and second instants of time, and a time-to-contact is estimated based on the predicted optical flow thus obtained.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: January 28, 1997
    Assignees: Massachusetts Institute of Technology, Technopolis CSATA Novus Ortus
    Inventors: Tomaso Poggio, John G. Harris, Nicola Ancona