Share Email Print
cover

Proceedings Paper

Integral imaging using pupil modulation and depth-control processing
Author(s): Jun Arai; Masahiro Kawakita; Makoto Okui; Eisuke Nakasu; Fumio Okano
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Integral imaging system uses a lens array to capture an object and display a three-dimensional (3-D) image of that object. In principle, a 3-D image is generated at the depth position of the object, but for an object located away from the lens array in the depth direction, the modulation transfer function (MTF) of the integral imaging system will be degraded. In this paper, we propose a method that uses pupil modulation and depth-control processing to alleviate this degraded MTF. First, to alleviate changes in the MTF due to differences in depth when capturing the object, we use a pupil-modulated elemental lens to obtain an elemental image. Next, we use a filter having characteristics opposite those of the MTF characteristics of the pupil-modulated elemental lens to restore the degraded image. Finally, we apply depth-control processing to the restored elemental image to generate a reconstructed image near the lens array. This method can alleviate degradation in the MTF of the integral imaging system when an object is located at a distance from the lens array. We also show results of computer simulations that demonstrated the effectiveness of the proposed method.

Paper Details

Date Published: 17 February 2010
PDF: 11 pages
Proc. SPIE 7524, Stereoscopic Displays and Applications XXI, 75241Q (17 February 2010); doi: 10.1117/12.839113
Show Author Affiliations
Jun Arai, NHK Science & Technical Research Labs. (Japan)
Masahiro Kawakita, NHK Science & Technical Research Labs. (Japan)
Makoto Okui, NHK Science & Technical Research Labs. (Japan)
Eisuke Nakasu, NHK Science & Technical Research Labs. (Japan)
Fumio Okano, NHK Science & Technical Research Labs. (Japan)
NHK Engineering Services, Inc. (Japan)


Published in SPIE Proceedings Vol. 7524:
Stereoscopic Displays and Applications XXI
Andrew J. Woods; Nicolas S. Holliman; Neil A. Dodgson, Editor(s)

© SPIE. Terms of Use
Back to Top