Fig. 1. Imaging model of binocular stereo vision

Fig. 2. Occlusion diagram of binocular vision measurement system

Fig. 3. Display of binocular vision system measurement data. (a) Distorted fringe image of left camera; (b) distorted fringe image of right camera; (c) reconstructed result of facial mask

Fig. 4. Calibration diagram of implicit phase-height mapping relationship

Fig. 5. Analysis on calibration parameter of implicit phase-height mapping relationship. (a) a(u,v); (b) b(u,v); (c) c(u,v)

Fig. 6. Fringe patterns taken by camera and fringe spectrum. (a) Vertically distributed fringe pattern; (b) inclined fringe pattern; (c) Fourier spectrum distribution of fringe pattern

Fig. 7. Diagram of point cloud missing area

Fig. 8. Flow chart of proposed method

Fig. 9. Experimental setup

Fig. 10. Measurement results of standard sample with two balls. (a) Remove part of complete point cloud data of standard sample as holes to be interpolated; (b) interpolated result by proposed method

Fig. 11. Reconstructed result of facial mask. (a) Reconstructed result with local point cloud data missing on both sides of nose and some point cloud data artificially deducted in upper lip; (b) interpolated result of proposed method; (c) interpolated point cloud data in left nasal alar; (d) interpolated point cloud data in right nasal alar; (e) interpolated point cloud data in upper lip; (f) difference distribution between interpolated result and measured result of point cloud deducted area in upper lip

Fig. 12. Interpolated results of facial mask by Geomagic. (a) Reconstructed result by Geomagic with local point cloud data missing on both sides of nose and some point cloud data artificially deducted in upper lip; (b) interpolated point cloud data by Geomagic in left nasal alar; (c) interpolated point cloud data by Geomagic in right nasal alar; (d) interpolated point cloud data by Geomagic in upper lip; (e) comparison of interpolated results of proposed method and Geomagic in upper lip; (f) difference d

Fig. 13. Experiment results of gourd model. (a) Binocular reconstructed result with point cloud absence in both ends and middle part; (b) interpolated result of proposed method; (c) interpolated point cloud data in left end; (d) interpolated point cloud data in right end

Table 1. Accuracy evaluation of binocular vision system and proposed methodmm