Presentation 2007-07-09
Aliasing Supressed Refocusing from Under-sampled Light Field
Akira KUBOTA, Kazuya KODAMA, Yoshinori HATORI,
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Abstract(in English) This paper proposes a novel spatial-invariant filtering method for rendering focus effects without aliasing artifacts from undersampled light fields. The presented method does not require any scene analysis such as depth estimation and feature matching. First, we generate a series of images focused on multiple depths by using the conventional wide-aperture method and treat them as a 3D image. Second we convert it to the alias-free 3D image. This paper shows this conversion can be achieved simply by a 3D filtering in the frequency domain. The proposed filter can also produce depth-of-field effects.
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Keyword(in English) image-based rendering / refocusing / Weiner filter / depth of field / light field
Paper # IE2007-21,MVE2007-24
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Committee MVE
Conference Date 2007/7/2(1days)
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Registration To Media Experience and Virtual Environment (MVE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Aliasing Supressed Refocusing from Under-sampled Light Field
Sub Title (in English)
Keyword(1) image-based rendering
Keyword(2) refocusing
Keyword(3) Weiner filter
Keyword(4) depth of field
Keyword(5) light field
1st Author's Name Akira KUBOTA
1st Author's Affiliation Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Technology()
2nd Author's Name Kazuya KODAMA
2nd Author's Affiliation National Institute of Informatics, Research Organization of Information and Systems
3rd Author's Name Yoshinori HATORI
3rd Author's Affiliation Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Technology
Date 2007-07-09
Paper # IE2007-21,MVE2007-24
Volume (vol) vol.107
Number (no) 130
Page pp.pp.-
#Pages 6
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