Elemental image array generation based on object front reference point of optical axis of camera array for integral imaging

We propose a general and simple elemental image array (EIA) generation method for orthoscopic integral imaging (INI) in which perspective images (PIs) are captured with the optical axis of cameras crossed on a reference point ahead of the object. This method is generally applicable to display systems with different parameters. The number of the PIs equals to that of elemental lens, so it is very effective for such a system in which elemental lenses are less than the pixels of each elemental image (EI). And each EIA can be generated with corresponding PI rotated 180°, instead of intercepting and mapping those pixels. We did experiments to prove the feasibility of the method.