The geometric error of axial image reconstruction increases with the increase of CT scan slice thickness, due to CT partialvolumeeffect.
重建CT图像的前后方向的几何误差是随着扫描层厚增加而增加，主要是由于CT扫描的部分容积效应影响。
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Experimental results on both MR real data and the stimulated brain data show that the proposed algorithm is robust, which can filter the noise and partialvolumeeffect significantly.