Scan-type image capturing system using a cylindrical lens for one-dimensional integral imaging

We propose a new capturing system to realize capture of elemental images for an autostereoscopic display based on a one-dimensional integral imaging (1D-II) method. In order to realize a capturing system for the 1D-II display, capturing elemental images with fine pith and containing much horizontal parallax information with wide angle are important. The optical system composed of a cylindrical lens, a focusing lens and an imaging device can capture elemental images having these two features with scanning over an object. Furthermore, the system size can be small by adapting a compact scanning optical system of a copy machine. We captured 200 elemental images at a fine scan pitch of 0.5 mm. There were 92 horizontal pixels on each elemental image. The number of horizontal pixels correspond the number of parallaxes. The angle range of the captured parallaxes was 42 degrees. Using the autostereoscopic display based on the 1D-II method, the synthesized image can be observed to be a correct three-dimensional (3-D) image.

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