PROCEDE DE RECONSTRUCTION D'IMAGES DE COUPES PARALLELES SUCCESSIVES D'UN OBJET CONTENANT DES SOURCES EMETTRICES DE RAYONNEMENT GAMMA

摘要

Method for reconstructing images of successive section cuttings of an object (2) by means of a gamma-camera (5) having a plane detector (1) parallel to the section cutting planes. The method comprises the use of a mask (M) arranged between the object and the camera, forming a coding matrix comprising patterns (M1) formed by transparent elements in an opaque surface. The method comprises then the processing of signals provided by the gamma-camera, from a matrix for decoding the images of the sources on the detector, obtained by traversing the mask. The processing uses an iterative algorithm of signal processing. Application to the formation of tridimensional images of objects.