Fig. 1. Stereo target for calibration of structured-light system

Fig. 2. Perspective projection from space plane to image plane

Fig. 3. Geometric model of ideal projection of two groups of orthogonal parallel lines

Fig. 4. Flow chart of system calibration

Fig. 5. Stereo target experiment. (a) Photo of structured-light calibration system; (b) one sinusoidal phase shift coding graph

Fig. 6. Three-dimensional measurement results of plane. (a) Plane of fitting point cloud; (b) plane error

Fig. 7. Three-dimensional measurement results of step. (a) Photo of step; (b) three-dimensional reconstruction result

Fig. 8. Calibration process of Zhang's method[13]. (a) Visual angle of camera; (b) visual angle of projector

Fig. 9. Reconstructed three-dimensional point cloud. (a) Orthographic projection view; (b) side view