Correction factors and error redistribution for art in geophisical applications

Abstract

An algorithm which is used widely to reconstruct geophysical profiles, from remote sensed measurements, is the Algebraic Reconstruction Technique (ART) [ l ] [2]. In addition, the ART has also servea as a prominent method for reconstruction of images in medical applications. The ART is basically an iterative method whose successive profiles are based upon those derived in previous iterations. In applying the ART, the scanned environment is subdivided into cells (usually of rectangular shape) whereby the electrical properties o f the medium within a given cell are assumed to be constant. The iteration process progresses by operating on all the cells in a given path before proceeding to