×

Motion detection using normal optical flow

  • US 6,654,483 B1
  • Filed: 12/22/1999
  • Issued: 11/25/2003
  • Est. Priority Date: 12/22/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of detecting motion comprising:

  • obtaining a plurality of images of an object over a predetermined period of time;

    generating a motion region image of the object from the plurality of images;

    tracking regions of the motion region image from a current region to an older region; and

    identifying movement based on the tracking regions of the motion region image, wherein generating the motion region image comprises;

    isolating the object in the plurality of images from a background to form a plurality of silhouettes;

    overlapping the plurality of silhouettes; and

    setting all pixels of the overlapped silhouettes to an equal value.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×