A method for filtering of tomography 3d - illustrations according to the reconstruction of volume data

摘要

The present invention relates to a filtering process of tomography 3 - d - representations, wherein for the representation of a solid model is used, which the volume of the object to be examined in a plurality of three-dimensional image of voxels, and the image value of each voxel an object-specific property of the object to be examined in this volume, where, according to the invention, the original image voxel (i_org) with a over the entire image region same 2 - d - filter and two different linear filters with selected directions, which is composed of the extremes of the previously calculated variances result, that is to be processed, and thus be three data sets with differently filtered image voxels (i_If, I_{Alf, min} and i_Alf, _I) shown furthermore the original image voxel (i_org) and the filtered image voxel (i_If, I_{Alf, min} and i_{Alf, x}) with the use of local weights to a final image (i_final) to be mixed. In addition, original image data with a viewing part ends of linear filters with filter direction in the direction of the maximum local variance to be machined, so that a data set (i_Bloom) is produced, which engages in the output image (i_final) locally is mixed differently weighted.