Appeal No. 1999-2315
Application No. 08/742,432
The disclosed invention pertains to a method and
apparatus for identifying and tracking objects within a scene
represented by a sequence of images. More particularly, the
invention uses a combination of two distinct methods for
object detection. One method is suited for well-lit scenes,
while the other method is suited for poorly-lit scenes.
Representative claim 1 is reproduced as follows:
1. A method of identifying and tracking objects within a
scene represented by a sequence of images comprising the steps
of:
generating a reference image containing background
information of the scene;
selecting an image from said sequence of images as a two
dimensional object image;
converting said two dimensional object image into a one-
dimensional strip of object image values;
converting said reference image into a one-dimensional
reference strip of reference values;
producing a difference strip of difference values by
comparing the reference values in the reference strip to the
object image values in the one-dimensional strip; and
processing said difference strip to identify moving
objects in said scene.
The examiner relies on the following references:
Lo et al. (Lo) 4,959,714 Sep. 25, 1990
Kajiwara 5,218,414 June 08, 1993
-2-
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: November 3, 2007