Fig. 1. Schematic diagram of binocular structured light 3D measurement system

Fig. 2. Overall process of 3D reconstruction of large-scale components

Fig. 3. Flowchart of absolute phase expansion

Fig. 4. Improved planar raster images before and after Gaussian filtering

Fig. 5. Gray value distribution before and after improved Gaussian filtering

Fig. 6. Schematic diagram of absolute phase unwrapping

Fig. 7. Stereo corrected post-binocular model

Fig. 8. Flowchart of multi-angle point cloud splicing algorithm

Fig. 9. Point cloud filtering rendering

Fig. 10. Point cloud stitching effect at adjacent angles

Fig. 11. Experimental platform of large-scale 3D topography measurement system

Fig. 12. Three-dimensional topography results of standard part of double bat