Fig. 1. Binocular stereo vision

Fig. 2. Three-dimensional reconstruction system based on digital speckle

Fig. 3. Sketch map of homonymous point search. (a) Left image; (b) right image

Fig. 4. Comparison of interpolation accuracy

Fig. 5. Correlation coefficients under binary and 8 grayscale speckle projection. (a) Left and right images; (b) correlation coefficients at different positions

Fig. 6. Experimental apparatus

Fig. 7. Speckles of different sizes

Fig. 8. Regional reconstruction of the ceramic plate

Fig. 9. Standard deviation distribution of plane fitting residuals

Fig. 10. Standard deviation of the plane fitting residuals sorted from small to large

Fig. 11. Standard deviation distribution of spherical fitting residuals

Fig. 12. Residuals before and after eliminating the gross error

Fig. 13. Standard deviation distribution of spherical fitting residuals after filtering

Fig. 14. Standard deviation of spherical fitting residuals sorted from small to large

Fig. 15. Fitting result of spherical diameter

Fig. 16. Reconstruction of the fox mask based on a single binary speckle