Fig. 1. Imaging model of light field camera

Fig. 2. Three-dimensional display process of optical field data

Fig. 3. Lenslet array grid model. (a) Raw data captured by light field camera; (b) white image; (c) subimage center distribution

Fig. 4. EIA extracted from light field image. (a) Angle deviation of original light field image L_S relative to pixel grid; (b) overall rotation to eliminate offsets; (c) standard hexagon light field image with subimage aligned with pixel grid; (d) subimages with orthogonal arrangement; (e) square subimages with orthogonal arrangement after interpolation; (f) EIA extracted from effective coverage in Fig.4(e) after removing dark area

Fig. 5. Schematic of depth adjustment for light field camera. (a) Capture process of light field camera; (b) 3D display process of EIA without depth adjustment; (c) depth adjustment of image space

Fig. 6. EIA-SIA depth adjustment

Fig. 7. Experimental setup for optical field acquisition and 3D display. (a) 3D doll; (b) panel letter; (c) DPII 3D display system

Fig. 8. EIA-SIA depth adjustment. (a) Original EIA; (b) SIA generated from original EIA; (c) depth adjustment of letters “W” and “M”; (d) depth adjusted EIA after fusion

Fig. 9. Comparison of multi-view 3D display. (a)(c) Without depth adjustment; (b)(d) with depth adjustment

Table 1. Comparison of reconstruction depth