Method of reconstruction multi - resolutions of a three-dimensional image of an object, in particular a three-dimensional image angiographic

摘要

The invention relates to a process for the reconstruction of a three-dimensional image from a set of two-dimensional images acquired. It carries out a sub-sampling of the set of two-dimensional images acquired so as to reduce their resolution. It applies a first analytical algorithm of the reconstruction of a three-dimensional image from the two-dimensional images acquired low resolution (fr) in order to obtain a three-dimensional image of the low resolution. It then determines a support for the reconstruction of the three-dimensional image of the low resolution, a set of voxels particular. Then, it applies a second analytical algorithm of the reconstruction of a three-dimensional image from the two-dimensional images acquired and by considering only the voxels of the support of the three-dimensional image reconstruction in order to obtain high resolution (hr).