Patent ID: 6377206
Filing Date: 2002-04-23
Classification: G01S,G06T

Abstract:
A method for reducing clutter in a first digital image, the first digital image corresponding to first digital image data and including at least a first candidate object of interest obscured by the clutter, wherein the first digital image data is in an image intensity domain, said method comprising the steps of:performing first and second transforms to transform the first digital image data in the image intensity domain into first and second transformed image data in first and second transform domains, respectively, wherein first and second transform indications of each of the first and second transformed image data corresponding to at least the first candidate object of interest and the clutter, respectively, in the first and second transform domains are separable; filtering at least a portion of the second transform indications corresponding to the clutter in the first and second transform domains; performing inverse first and second transforms on at least the first transform indications in the first and second transform domains, respectively, to transform at least the first transform indications into first filtered indications in the image intensity domain, the first filtered indications corresponding to at least the first candidate object of interest; and performing one of first and second steps, said first step comprising the step of combining the first filtered indications in the image intensity domain to produce a first filtered image, said second step comprising processing the first filtered indications in the image intensity domain using a principal component analysis.