Fig. 1. 3D shape measurement based on one-dimensional images. (a) Single line-scan sensor with structured light^[33]; (b) single line-scan sensor in multiple views^[35-36]; (c) dual line-scan stereo-vision sensor^[39-42]; (d)(e) multiple line-scan sensor with push-broom intersection^[47,49-50]

Fig. 2. Key techniques of high-resolution shape measurement for extendable surfaces

Fig. 3. One-dimensional image sensor model

Fig. 4. Process of pushing and scanning the measured object from multiple perspectives^[35-36]

Fig. 5. Sub-pixel matching^[50]

Fig. 6. Schematic of the measurement system^[43-44]

Fig. 7. Projected π phase-shifting grating pattern^[32]

Fig. 8. One-dimensional image matching assisted by two-dimensional image^[37-38]

Fig. 9. Schematic of coplanar adjustment^[49]

Fig. 10. Schematic of the system with reflecting mirrors^[46]

Fig. 11. Formation process of three-dimensional light field^[47]

Fig. 12. System model^[49-50]