Fig. 1. Surface structured light 3D scanning system

Fig. 2. Schematic diagram of effective measuring range for monocular camera and binocular cameras

Fig. 3. Effective measuring range of binocular scanner and schematic diagram of grid cell

Fig. 4. Schematic diagram of candidate viewpoint generation

Fig. 5. Determination of the optical parameter constraint

Fig. 6. Determination of monocular camera visibility

Fig. 7. Determination of binocular camera visibility

Fig. 8. Schematic diagram of visibility constraints determination

Fig. 9. Schematic diagram of occlusion constraints determination

Fig. 10. Schematic diagram of 2D plane intersection detection

Fig. 11. Optimal view point screening process

Fig. 12. Workpiece to be tested

Fig. 13. Schematic diagram of normal vector consistency

Fig. 14. Normal vector consistency errors and consuming times of automobile sheet metal parts and reducer shell

Fig. 15. Scanning coverage of automobile sheet metal parts

Fig. 16. Influence of weight coefficient on scanning quality for sheet metal parts

Fig. 17. Scanning coverage of reducer sheet

Fig. 18. Influence of weight coefficient on the scanning quality for reducer shell

Fig. 19. (a) Experimental system for automatic measurement of complex surfaces and (b) its schematic diagram

Fig. 20. Viewpoint generation and scanning effect of automobile sheet metal parts

Fig. 21. Actual scanning rendering of reducer shell