Fig. 1. Illustration of imaging system geometry for cone-beam X-ray (CBCT) CT

Fig. 2. Scatter correction procedure diagram

Fig. 3. Projection information of the correction plate

Fig. 4. Interpolation process schematic diagram

Fig. 5. Flow chart of image processing

Fig. 6. Appearance of the CT

Fig. 7. CT scattering estimation

Fig. 8. Gray value images along A₁ and A₂

Fig. 9. Grayscale images of two DR images along A₂ direction

Fig. 10. Reconstructed images

Fig. 11. Tomographic images before and after correction