## 3 Results
### Dual-View 3-D Display of the DV-EIA  
The DV-EIA can be reconstructed into two different 3-D object images of 'VR' and '3D' in the left and right viewing directions, respectively, on the proposed CMA-DPII system, which is shown in Figure 10.  
As seen in Figure 10, the fabricated 22''CMA was set to be located at a distance of 800 mm from the beam projector (Model: LG PF85K). Since the pitch of the elemental convex mirror and the distance between the projector and CMA were 7.47 mm and 800 mm, respectively, the far-field condition of \(P/L=0.009<0.01\) for the PRA method could be satisfied. In addition, in the experiments, the parameters of \(\alpha\) and \(K\) were set to be 0.5 and 15, respectively, and arctan(1/2(#)) of the CM was calculated to be 27.0\({}^{\circ}\). Thus, with these experimental parameters, each of the left and right viewing angles was calculated to be 20\({}^{\circ}\) from Equation (5).  
Thus, the DV-EIA generated from the pickup system was loaded on the projector. Then, the divergent beam of the projector containing the information of the DV-EIA was projected onto the CMA. On every convex mirror of the CMA, the left and right-view components of the DV-EIs were separated and reflected back into their viewing directions, and two different 3-D scenes were integrated and displayed on their viewing zones. Figure 14 shows two kinds of optically reconstructed 3-D images of 'VR' and '3D' at two different viewing zones on the proposed display system of Figure 14 from the DV-EIA. That is, Figures 14a-c and 14d-f show three kinds of optically reconstructed 3-D images of 'VR' and '3D' at the left and right viewing zones, which are viewed from each of the different viewing angles of \(-19.5^{\circ}\), \(-10.0^{\circ}\), \(-3.0\) and \(3.0\), \(10.0^{\circ}\), \(19.5^{\circ}\), respectively.  
Figure 13: Generation of the DV-EIA with L-EIA and R-EIA based on SSIM: (**a**) L-EIA and R-EIA, (**b**) left sub-image array (L-SIA) and right sub-image array (R-SIA), (**c**) dual-view right sub-image array (DV-SIA), and (**d**) DV-EIA.  
As we can see, in the left-hand 3-D image of 'VR' viewed from the angle of \(-19.5\lx@math@degree\), 'V' and 'R' images are partially overlapped, where a part of the 'R' image is blocked by the image of 'V' because the 'R' object was originally located back of the 'R' object by 50 mm in the pickup process. It means that the reconstructed image of 'VR' is a form of 3-D data with depth. In the case of the center image of 'VR' of Figure 14b, which is viewed from the angle of \(-10.0\lx@math@degree\) at the left viewing zone, 'V' and 'R' images look aligned in parallel, whereas in case of the right-hand image of 'VR', 'V' and 'R' images get a little bit separated from each other since they have different depths. That is, as we move from the left to the center and right directions, the distance difference between the two object images of 'V' and 'R' increases, which confirms that these object images have depth information. In addition, Figure 14d-f also show the optically reconstructed 3-D images of '3D' at the right viewing zone from the DV-EIA. Those reconstructed '3' and 'D' images at three different directions look almost the same as those images in the case of the 'VR'. These good experimental results of Figure 14 confirm that the proposed system can be applied to the practical dual-view 3-D display.  
Moreover, viewing angles for the left and right viewing zones have been measured to range from \(-19.5\lx@math@degree\) to \(-3.0\lx@math@degree\) in the left viewing zone, and from \(3.0\lx@math@degree\) to \(19.5\lx@math@degree\) in the right viewing zone, respectively. These results may also confirm that the proposed system can provide relatively large viewing-angles with a simple optical configuration composed of only a pair of projectors and CMA.