Imaging method using a back projection technique

摘要

Relates to imaging method, in particular, the target is penetrated by radiation from different directions, the present invention relates to a computer tomography method for measurement of the radiation intensity of the through after the target and are acquired by the detector unit. The backprojection backprojection value that depends on the measured values, the target image is reconstructed from these measurements. Target image is divided into image segments of spherically symmetric pseudo-overlapping, each image segment is defined by the base function of spherical symmetry in a pseudo manner and image value. In addition, back-projection values ​​is added in proportion to the image value during the back projection, the basis functions that belong to the image values ​​of the proportion of back-projection value to be added to the image value during the back projection is backprojected each depends on the same proportionality factor along the radiation to yield a measurement value is dependent on the average value of the line integral.