×

Method and apparatus for mapping a location from a video image to a map

  • US 6,816,184 B1
  • Filed: 04/15/1999
  • Issued: 11/09/2004
  • Est. Priority Date: 04/30/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of monitoring, comprising the steps of:

  • providing a map of a monitored area;

    detecting a reference image of the monitored area;

    receiving operator input identifying a first region which corresponds to a selected portion of the monitored area as viewed in the reference image;

    receiving operator input identifying a second region which corresponds to the selected portion as viewed on the map;

    defining warp transformation parameters for translating a selected point in the first region into a corresponding point in the second region;

    detecting a further image of the area;

    identifying a portion of the further image corresponding to an object of interest;

    selecting a first point near a lower end of the portion of the further image which corresponds to the object of interest, the first point being within the first region; and

    carrying out a warp transformation of the first point from the first region to the second region according to the defined warp transform parameters in order to identify within the second region a second point which corresponds to the first point and which identifies a position on the map of the object of interest.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×