Three-dimensional image volume reconstructing method for patient, involves rear-projecting projection image by each processor on three-dimensional partial image volume, and sequentially merging partial image volumes after rear projection

摘要

The method involves calculating a gray value of a voxel of an image volume by a rear projection of a projection image. The rear projection is calculated from a number of N reconstruction processors (R1-RN). The projection image is rear-projected by each processor on three-dimensional partial image volumes. The image volumes are sequentially merged after the rear projection of the projection image according to a hierarchical structure. A receiver data storage is arranged in a receiver system for providing the projection images. Independent claims are also included for the following: (1) a device for reconstructing a three-dimensional image volume from two-dimensional projection images of an object (2) a computer program product with program codes that are stored on a machine-readable medium for executing a method for reconstructing a three-dimensional image volume (3) a digital storage medium with electronic readable control signals.