Patent ID: 6100925
Filing Date: 2000-08-08
Classification: G01S,H04N

Abstract:
A method for tracking motion from field to field in a sequence of related video images that are scanned by at least one camera having one or more hardware sensor devices, the method comprising the steps of:a) establishing an array of idealized x and y coordinates representing a reference array having a plurality of landmarks where each landmark has unique x and y coordinates;b) mapping x and y coordinates in a current image to said x and y coordinates in said reference array;c) acquiring camera sensor data from said hardware sensor device, said camera sensor data representing the position and orientation of the camera;d) predicting the future location of said landmark coordinates, x' and y', using said camera sensor data,wherein prediction errors due to changes between two successive fields are minimized by adding (i) the field to field difference in landmark location calculated from said camera sensor data to (ii) the landmark position x, y previously located.