Patent Document ID: 20100195891
Application ID: 12679680
Patent Status: 0

Claim One:
1. An image reconstructing method using X-ray volume photography, comprising the following steps: acquiring data of a plurality of X-ray area array images by taking photos of an object interested according to the locating principle of the digital photographic measurement, when taking an X-ray digital photo, simultaneously taking at least three mark points of which the 3D positions are known in the X-ray digital photo, using the coordinates of the mark points in a rectangular coordinate system for volume photographic 3D image reconstruction and the coordinates of the mark points in an X-ray photo coordinate system to construct a transforming relationship of the two coordinate systems, determining the path and the position of each X-ray photographic beam by using the transforming relationship, obtaining all voxels of each X-ray passing the object interested, determining the gray scale value of the voxel g by solving the Radon equation set based on a voxel g and a pixel G on the same X beam path, calculating the gray scale values of all voxels g by a computer, reconstructing a 3D volume image of the object interested based on the gray scale values of the voxels g.