Fig. 1. Illustration of detector-displaced scan

Fig. 2. Original projection data and truncated projection data. (a) Original projection data with 924-pixel width; (b) truncated projection with 724-pixel width;(c) truncated projection with 524-pixel width

Fig. 3. Reconstructed images. (a) Reconstructed image of projection p₁; (b) reconstructed image of projection p₂; (c) reconstructed image of projection p₃

Fig. 4. Horizontal profiles of gray value. (a) Horizontal profiles of reconstructed images corresponding to projection data p₁ and p₂; (b) horizontal profiles of reconstructed images corresponding to projection data p₁ and p₃

Fig. 5. Extending weighting region of projection data

Fig. 6. Reconstructed images without and with weighting artifact correction. (a) Reconstructed image of p₃ without artifact correction; (b) reconstructed image of p₃ with artifact correction; (c) reconstructed image of p₂

Fig. 7. Horizontal profiles of gray value. (a) Horizontal profiles of reconstructed images corresponding to p₂ and p₃ without correction; (b) horizontal profiles of reconstructed images corresponding to projection p₂ and p₃ with correction

Fig. 8. Reconstructed images without and with weighting artifact correction. (a) Reconstructed image of p₃ without artifact correction; (b) reconstructed image of p₃ with artifact correction; (c) reconstructed image of p₂

Fig. 9. Horizontal profiles of gray value. (a) Horizontal profiles of reconstructed images corresponding to projection data p₂ and p₃ without correction; (b) horizontal profiles of reconstructed images corresponding to projection data p₂ and p₃ with correction