Verarbeitungssystem einer verrauschten Bildsequenz und medizinisches Untersuchungsgerät mit einem solchen System

摘要

The image processing system extracts a noisy temporal sample at a given location in the noisy image and delivers a corresponding recursively filtered temporal sample to construct a noise free image. The recursive temporal filter sums the corresponding sample from the preceding filtered image with the corresponding sample of the differences between the preceding noisy image and its filtered form. A recursion factor is used to weight the difference. A bi-dimensional spatial filter (F2D) is applied to the difference images to show the spatially coherent samples and provide a measure of the probability of movement of attached to the spatially coherent samples. A scalar function (f1) is applied to generate the recursion factor depending on the measure of probability of movement.