| 摘要 |
The invention relates to a system (100) and method for acquiring X-ray images of an object of interest (101). The system (100) comprises an X-ray source (102) for generating an X-ray radiation beam towards the object of interest (101); a ruler element (103) placed in the path of the X-ray radiation beam, the ruler element (103) comprising a plurality of graphic patterns (GP1...GPn) which are different from each other and are X-ray detectable, each of the graphic patterns (GP1...GPn) comprising a plurality of marks arranged according to a two-dimensional arrangement; a unit (104) for detecting the X-ray radiation beam that has passed through the object of interest (101) and the ruler element (103), and generating an image of at least a portion of the graphic patterns (GP1...GPn) and the object of interest (101). |
