There's great influence on the reconstructed image by X-ray scatter in cone-beam computed tomography (CBCT). X-ray scatter correction technique is one of the hot research fields in 3D imaging of CBCT. A hybrid scatter correction method is proposed, which combines the beam attenuation grid and the beam stop block. Combined with the scatter correction equipments, a scatter correction algorithm is designed to reduce the X-ray scatter in this paper. The scatter correction performance is investigated by real experiments with an industrial metallic bolt. The results showed that the proposed method could more effectively suppress the scatter artifacts than which based on an attenuation grid alone.
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