Koninklijke Philips Corporation N.V.

U.S. Philips Corporation

Christel Soyer

Raoul Florent

Sh&eacute;rif Makram-Ebeid

The invention relates to an image processing method for reducing the noise in an image, including determination of three noisy temporal intensities relating to a current pixel in three successive images in a sequence, the image to be processed being the central image of the sequence. The method includes spatial and temporal filtering means ( ) which combine inputs ( ) of temporal intensities, inputs ( ) of spatial intensities, and at least one input ( ) of a spatial and temporal and random intensity in order to supply the filtered intensity ( ) for the current pixel of the processed image (J ). The method involves a pseudo-temporal branch ( ) which combines temporal inputs ( ) with a spatial input ( ) and, connected in parallel, a pseudo-spatial branch ( ) which combines spatial inputs ( ) with a temporal and recursive random input ( ), the results ( ) of the two parallel branches being combined ( ).

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Paris, France

Christel Soyer