Method of obtaining a restored image sequence of a moving object from noisy measurements

摘要

The image restoration has three main stages. The first is to obtain a sequence of raw images of the moving body from appropriate detectors. The second determines a law of movement from the sequence of images. The third modifies the raw images, applying a suitability criterion, a spatial regularisation criterion and a temporal regularisation criterion. In all cases, the law of movement of the object is considered. The criteria are expressed as an error function between the restored image and the raw data, with minimum error corresponding to the ideal restoration. Movement is estimated from the reconstructed raw images by filtering and retro-projection. Temporal regularisation weights each image point with its precision of estimation.