Fig. 1. Projected five sinusoidal fringe patterns. (a) Three sinusoidal fringe patterns , , and with frequency ; (b) Sinusoidal fringe pattern with frequency ; (c) Sinusoidal fringe pattern with frequency ; (d)-(f) Intensity at the red line pixel position in Fig. 1(a)-(c) respectively 投影的5张正弦条纹图。（a）频率为 的3张正弦条纹图 ；（b）频率为 的正弦条纹图 ；（c）频率为 的正弦条纹图 ；（d）~（f）图1（a）~（c）中红色划线像素位置的光强值

Fig. 2. Light intensity experiment of sinusoidal fringe patterns with fringe periods of 70, 64, 59, 1. (a) Three-step phase-shifting patterns obtained from the experiment; (b) Average intensity obtained from the experiment; (c) Intensity modulation obtained from the experiment

Fig. 3. Wrapped phase and triangular wrapped phases and which are obtained by arc cosine functions, wrapped phase and which are phases transformed by triangular wrapped phases and 通过反余弦函数计算得到的包裹相位φ₁和三角包裹相位φ₂、φ₃以及三角包裹相位φ₂、 φ₃转换得到的包裹相位φ_2u、φ_3u

Fig. 4. Experiment of the standard dumbbell-shaped ceramic sphere bat. (a) Structured light measurement system; (b) Camera captures a sinusoidal fringe image modulated by a standard sphere bat; (c) Reconstructed results of the standard ceramic sphere and corresponding fitted sphere surface

Fig. 5. Values of the standard dumbbell-shaped ceramic sphere bat measured by traditional algorithm and proposed algorithm. (a) Diameters of standard ceramic spheres A and B; (b) Center-to-center distance of the standard ceramic spheres A and B

Fig. 6. Paper folding reconstruction experiment. (a) Original image of paper folding; (b) Fringe pattern modulated by paper folding; (c) Paper folding reconstruction result; (d) Reconstructed contour at the red-line pixel position in Fig.(b)

Fig. 7. Measured results of the discontinuous objects. (a) Sinusoidal fringe pattern modulated by discontinuous objects with camera captured; (b) Light intensity, corresponding wrapped phase and phase order at the red line pixel position in Fig.(a); (c) Point cloud map of the reconstructed discontinuous objects

Fig. 8. 3D reconstructed results of the objects in three different light intensities using the proposed algorithm. The rows from left to right show the results in low(Fig.(a), (d), (g)), moderate(Fig.(b), (e), (h)) and high(Fig.(c), (f), (i)) light intensities respectively. The columns from top to bottom show the captured patterns of pumpkin mask(Fig.(a)-(c)), the light intensity of the captured patterns(Fig.(d)-(f)) and reconstructed results of pumpkin object(Fig.(g)-(i)) respectively

Fig. 8. [in Chinese]

Fig. 9. Height information of cross section the reconstructed pumpkin mask in different light intensity. (a) Light intensity at the red-line position in Fig.9 (a)-(c); (b) High information of reconstructed pumpkin mask of the cross section at the red-line position in Fig.9 (a)-(c)

Fig. 10. Measured results of the colorful wolf mask. (a) Sinusoidal fringe pattern modulated by colorful wolf mask with camera captured; (b) Light intensity, corresponding wrapped phase and phase order at the red line pixel position in Fig.(a); (c) Point cloud map of the reconstructed colorful wolf mask

Fig. 11. Scar details of the reconstructed colorful wolf mask