Fig. 1. The LFC system records the light ray

Fig. 2. Ray model of light field. (a) Spatial point determined by ray intersection; (b) schematic of sub-pixel ray equation

Fig. 3. Schematic of virtual continuous phase search. (a) Schematic of the sampling in different subview; (b) visibility of the left subview; (c) visibility of the right subview; (d) visibility using virtual continuous phase search

Fig. 4. Experimental system architecture

Fig. 5. Error analysis of phase and ray calibration. (a) Actual observed absolute phase and corresponding ideal absolute phase; (b) one set of the recorded 3D points along with the corresponding fitted ray

Fig. 6. Experimental scene 1. (a) Left-view point cloud; (b) front-view point cloud; (c) right-view point cloud; (d) original image

Fig. 7. Experimental scene 2. (a) Measured object of dental impression; (b) result of phase-height mapping method; (c) result of the proposed method

Fig. 8. Experimental scene 3. (a) Measured spheres; (b) point cloud deviation map