Segmentation method for use against moving objects

Details Segmentation method for use against moving objects Segmentation method for use against moving objects

G - Physics

06

F

350/32

G06F 17/15 (2006.01) G06T 7/20 (2006.01) H03H 17/02 (2006.01)

Patent

CA 1315872

A SEGMENTATION METHOD FOR USE AGAINST MOVING OBJECTS ABSTRACT OF THE DISCLOSURE Three image frames containing the an object of interest and background clutter are taken at successive time intervals and stored in memory. The background of images A, B and C are registered preferably using an area correlator 12. A median filter 16 is used to select a median value from the registered image frames. Then, subtractor 18 serves to subtract the median pixel values from one of the image frames. This difference output is then thresholded to provide a binary signal whose pixel values exceeding the threshold levels are generally associated with the position of the moving object.

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