METHOD FOR REDUCING ARTEFACTS IN CONE-BEAM COMPUTERISED TOMOGRAPHIC IMAGES Russian patent published in 2015 - IPC G06T11/00 A61B6/03 A61B5/00 

FIELD: medicine.

SUBSTANCE: invention refers to medical imaging. A method comprises the stages, which involve: reducing structural artefacts in three-dimensional image data; eliminating noise in a replicated set of coronary sections in a working amount of the three-dimensional image data; forming a set of differential coronary sections by subtracting the set of the noise-free coronary sections from the replicated set of the coronary sections; replacing the set of the coronary sections by the differential coronary section in the working amount; eliminating noise in a replicated set of the sagittal sections in the working amount; forming the set of differential sagittal sections by subtracting the set of the noise-free sagittal sections from the replicated set of the sagittal sections; replacing the set of the sagittal sections by the differential sagittal sections in the working amount; eliminating noise in a replicated set of axial sections in the working amount after replacing by the differential coronary and sagittal sections in the working amount and subtracting the set of the noise-free axial sections from the three-dimensional image data.

EFFECT: providing dynamic smoothing of the detected high-gradient projection data.

15 cl, 5 dwg