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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 8 — Apr. 16, 2007
  • pp: 4814–4822

Improved viewing resolution of integral videography by use of rotated prism sheets

Hongen Liao, Takeyoshi Dohi, and Makoto Iwahara  »View Author Affiliations

Optics Express, Vol. 15, Issue 8, pp. 4814-4822 (2007)

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We demonstrated that placing a pair of prism sheets in front of a display and rotating them overcomes the upper resolution limit of Integral Photograpy (IP) / Integral Videography (IV) imposed by the Nyquist sampling theorem. A pair of prism sheet with the same pitch placed in front of an IP or IV display parallel-shifts the light rays in the 3D space. Rotating the pair shifts the light rays, causing them to appear to rotate around their original positions. Changing the gap between the sheets changes the diameter of the apparent rotation. Changing the speed at which the sheets are rotated changes the speed of the image movement. Experimental results showed that the quality of the IP and IV images is improved by using this technique. It is a simple and effective way to improve the viewing resolution of IP and IV images without reducing their 3D aspects, such as image depth. It also eliminates the need to move the lenslet array.

© 2007 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(110.2990) Imaging systems : Image formation theory
(220.2740) Optical design and fabrication : Geometric optical design

ToC Category:
Imaging Systems

Original Manuscript: February 13, 2007
Revised Manuscript: April 3, 2007
Manuscript Accepted: April 4, 2007
Published: April 5, 2007

Hongen Liao, Takeyoshi Dohi, and Makoto Iwahara, "Improved viewing resolution of integral videography by use of rotated prism sheets," Opt. Express 15, 4814-4822 (2007)

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