Han Zhang, Guoqi Bao, Kai Liu. Simple Calibration Method for Three-Dimensional Imaging System with Structured Light[J]. Laser & Optoelectronics Progress, 2019, 56(14): 141102
- Laser & Optoelectronics Progress
- Vol. 56, Issue 14, 141102 (2019)
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
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Table 1. Measurement distances between step planes
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