Integral imaging using pupil modulation and depth-control processing

Jun Arai; Masahiro Kawakita; Makoto Okui; Eisuke Nakasu; Fumio Okano

doi:10.1117/12.839113

17 February 2010 Integral imaging using pupil modulation and depth-control processing

Jun Arai, Masahiro Kawakita, Makoto Okui, Eisuke Nakasu, Fumio Okano

Proceedings Volume 7524, Stereoscopic Displays and Applications XXI; 75241Q (2010) https://doi.org/10.1117/12.839113
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

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.

Citation Download Citation

Jun Arai, Masahiro Kawakita, Makoto Okui, Eisuke Nakasu, and Fumio Okano "Integral imaging using pupil modulation and depth-control processing", Proc. SPIE 7524, Stereoscopic Displays and Applications XXI, 75241Q (17 February 2010); https://doi.org/10.1117/12.839113

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available