During the course of monitoring and controlling on industrial process

because physical process changes instantaneously

the optical CT can not take "static" imaging like the medical CT while it must carry out "dynamic" imaging (that is namely flow imaging)

which would lead to not enough projection angles and the number of projections for light beam scanning.According to this

the reconstruction algorithms such as Linear Back Projection (LPB)

Filter Back Projection (FBP) and projection rearrangement method cannot be applied directly and must be improved.So

in this paper

the application feasibility of fan-beam projection rearrangement method in optical flow imaging is taken into account

the calculation approach is analyzed

and the restriction relations among the number of light sources

number of detectors and fan beam-divergence angle

what interpolation precision affects on image quality is analyzed too.In simulation experiment

by comparing the reconstruction images by LBP and projection rearrangement method

the image quality and real-time performance of the method in this paper are estimated.