Fig. 1. Array microfocal ray source. (a) Physical photo; (b) structural diagram; (c) projections of array microfocal points; (d) sample

Fig. 2. Schematic diagram of EBMCT imaging model. (a) Scanning mode; (b) definition of geometric parameters

Fig. 3. Smooth weighting strategy. (a) Projection data redundancy of adjacent focal spots; (b) weighting function curves

Fig. 4. Weighting process of projection data. (a) Projection data before weighting processing; (b) visualized weighting value; (c) projection data after weighting process

Fig. 5. Simulation results. (a) Shepp-Logan model; (b) reconstructed image of FBMCT; reconstructed images of EBMCT (c) without and (d) with weighting processing; (e) profile of horizontal center row

Fig. 6. Comparison of algorithms. (a) Reconstructed image of FORBILD model; reconstructed images of (b) rebinning algorithm, (c) SART algorithm, and (d) MSFBP algorithm; (e)--(h) reconstructed images of ROI of Figs. 6(a)--(d)

Fig. 7. Prototype of EBMCT

Fig. 8. Reconstructed images of two kinds of CT. (a) Image reconstructed by FBMCT (field of view is 3.8 mm); (b) image reconstructed by EBMCT (field of view is 9.5 mm); (c) sample photo

Fig. 9. Reconstructed images of ROI obtained by three algorithms. (a) Rebinning algorithm; (b) SART algorithm; (c) MSFBP algorithm

Fig. 10. Test experiments of MTF. (a) Image of pin gauge reconstruction; (b) MTF curves