A Method of Digitally Reconstructed Radiographs Based on Medical CT Images

摘要

A complete and detail method is described to get digitally reconstructed radiographs (DRRs). Casting rays to traverse CT images, computing CT values of resample points by interpolation, then converting CT value to its attenuation coefficient by using simplified segment function. Finally, DRRs enhancement is made to get the better display of region of interest (ROI), and a new way is adopted to adjust the customization coefficient. The experimental results show that the proposed method is effective in generating the satisfied DRRs.