| Spatio-Angular Prefiltering for Multiview 3D Displays. | |
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MedLine Citation:
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PMID: 20530817 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We analyze the reproduction of light fields on multiview 3D displays. A three-way interaction between input light field signal (which is often aliased), joint spatio-angular sampling grids of multiview 3D displays, and inter-view light leakage in modern multiview 3D displays is characterized in the joint spatio-angular frequency domain. Reconstruction of light fields by all physical 3D displays is prone to light leakage, which means that reconstruction low pass filter implemented by the display is broad in the angular domain. 3D displays excessively attenuate angular frequencies. Our analysis shows that this reduces sharpness of the images shown on 3D displays. In this paper, stereoscopic image recovery is recast as a problem of joint spatio-angular signal reconstruction. The combination of the 3D display point spread function and human visual system provides narrow band low pass filter which removes spectral replicas in the reconstructed light field on multiview displays. The non-ideality of this filter is corrected with proposed prefiltering. The proposed light field reconstruction method performs light field antialiasing and angular sharpening. The union of cosets approach is employed to model non-rectangular spatio-angular view sampling grids. We confirm the effectiveness of our approach in simulation and in physical hardware, and demonstrate improvement over existing techniques. |
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Authors:
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Vikas Ramachandra; Keigo Hirakawa; Matthias Zwicker; Truong Nguyen |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-6-2 |
Journal Detail:
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Title: IEEE transactions on visualization and computer graphics Volume: - ISSN: 1077-2626 ISO Abbreviation: - Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-6-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9891704 Medline TA: IEEE Trans Vis Comput Graph Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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University of California, San Diego, La Jolla. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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