| 摘要 |
<p>#CMT# #/CMT# The method involves computing grey values of voxel of image volume by rear projection of the projection image. The two individual projection images are recorded in constant relative position between a focus point and a region of interest (5). Rotation angles of the two individual projection images are arranged in a plane. The two individual projection images are constructed, and are put together to an extended projection image. #CMT# : #/CMT# An independent claim is also included for an X-ray machine for implementing the method for reconstructing three dimensional image volume from multiple two dimensional projection images of a region of interest. #CMT#USE : #/CMT# Method for reconstructing three dimensional image volume from multiple two dimensional projection images of a region of interest e.g. abdomen, of a patient. #CMT#ADVANTAGE : #/CMT# The method facilitates artifact free reconstruction of the three dimensional image volume from multiple two dimensional projection images of a region of interest, in case of larger region of interest and with sampling path under 360 degrees. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a geometry of an extended projection, which consists of two abutting projections under utilization of a curved x-ray machine. 4.1 : X-ray machine 5 : Region of interest 13 : X-ray radiation 15 : Focus point 17 : Projection center.</p> |
