J. Arai et al., GRADIENT-INDEX LENS-ARRAY METHOD BASED ON REAL-TIME INTEGRAL PHOTOGRAPHY FOR 3-DIMENSIONAL IMAGES, Applied optics, 37(11), 1998, pp. 2034-2045
Because a three-dimensional (3-D) autostereoscopic image can be seen f
rom a desired viewpoint without the aid of special viewing glasses, in
tegral photography (IF) is an ideal way to create 3-D autostereoscopic
images. We have already proposed a real-time IP method that offers 3-
D autostereoscopic images of moving objects in real time by use of a m
icrolens array and a high-definition television camera. But there are
two problems yet to be resolved: One is pseudoscopic images that show
a reversed depth representation. The other is interference between the
element images that constitute a 3-D autostereoscopic image. We descr
ibe a new gradient-index lense-array method based on real-time LP to o
vercome these two problems. Experimental results indicating the advant
ages of this method are shown. These results suggest the possibility o
f using a gradient-index lens array for real-time IP. (C) 1998 Optical
Society of America.