1. A method for reduction of noise in an image of a sequence of fluoroscopic images of an object in motion comprising: differentiation of the pixels of the image between pixels in motion and fixed pixels; and processing by an operation of time filtering of the fixed pixels, for each pixel of the image; the differentiation between pixel in motion and fixed pixel is performed as a function of the result of a detection of the movement during the course of which, in a zone of the image covering a set of pixels in the vicinity of the pixel, the existence or respectively the absence of motion of the object relative to a preceding image is detected.