For the empirical beamhardeningcorrection in computerized tomography (ct), it is necessary to measure an attenuation curve for the material.
传统的射束硬化校正方法,通常需要针对每一种材料测量该材料对射线的吸收曲线。
2
Experimental results show IL correction method can eliminate beamhardening effect and suppress the projection noise enlargement effectively in correction process.
实验结果表明,IL校正法能去除射束硬化的影响,并能有效地抑制校正过程中投影噪声的放大。
3
The method made the X-ray beam harden at first, and then the kinds of prehardening materials and correction rule of beamhardening artifacts were obtained through experiment.