Simple phase extraction in x-ray differential phase contrast imaging
Liu Xin†, 
, Guo Jin-Chuan, Lei Yao-Hu, Li Ji, Niu Han-Ben
, Guo Jin-Chuan, Lei Yao-Hu, Li Ji, Niu Han-Ben Radiography images: panels (a) and (b) are raw images collected with the phase grating at two different positions.
