Patent ID: 7529402
Filing Date: 2009-05-05
Classification: G06T

Abstract:
1. An image information processing apparatus generating three-dimensional volume data corresponding to a sample on the basis of two-dimensional projection data of said sample from a full circumferential direction acquired by an image capturing apparatus comprising an irradiation unit irradiating transmittable energy onto a sample; a photo detector receiving said transmittable energy transmitted through said sample; and a rotator relatively rotating said sample to be mounted thereon and said irradiation unit and said photo detector, said image information processing apparatus comprising: correcting means for correcting coordinate transformation of pixels of said projection image data, only in an effective pixel area, depending on an inclination angle of said rotator determined on the basis of a rotation axis of said rotator and an irradiation axis of said irradiation unit; filtering means for giving a prescribed filtering processing to said pixels in the effective pixel area having been corrected by said correcting means; and voxel calculating means for calculating voxels only about an area contained in said volume data using said corrected and filtered pixels, wherein coordinate transformation involves seven coordinate systems.