JOURNALS

摘要

Integral 3D imaging is a promising method to display 3D optical images, which reproduces exactly the same light rays as emitted from real objects. In this method, a subject is captured via an array of micro lenses, and a lens array is also used to recreate the image of the subject. This method duplicates the conditions of viewing real objects. Therefore, the convergence and accommodation responses have been predicted to be consistent with the depth position of the 3D target. We have increased the display range of the visual target (the image that can be seen by the viewer) from 450 mm to 900 mm, and we measured the convergence and accommodation responses when viewing integral 3D images, stereoscopic images, and real objects. The experimental results were evaluated with a multiple comparison test (a test for comparing independent groups). It was found that six of the ten observers did not have an accommodation-convergence conflict in viewing integral photography in the range, while two of the ten observers did not in viewing binocular stereoscopy. These results demonstrate that, compared with the stereoscopic method, integral 3D imaging produces convergence and accommodation responses that more closely resemble the behavior of the eyes when looking at real objects.