Fig. 1. Geometric model of discrete measurement

Fig. 2. Camera coverage model

Fig. 3. Schematic of visibility constraint

Fig. 4. Schematic of incident angle constraint

Fig. 5. Schematic of field of view constraint

Fig. 6. Schematic of depth constraint

Fig. 7. Schematic of practical measurement model. (a) Top view of propeller body; (b) front view of propeller body

Fig. 8. Simulation model of measured object

Fig. 9. Convergence procedure of first objective function

Fig. 10. Convergence procedure of second objective function

Fig. 11. Network layout of visual measurement

Fig. 12. Measurement model

Fig. 13. Comparison of three-dimensional uncertainty and standard deviation

Fig. 14. Three-dimensional reconstruction effect of measurement object