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- Publisher Website: 10.1364/OE.20.010971
- Scopus: eid_2-s2.0-84861120126
- PMID: 22565720
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Article: High-resolution lightfield photography using two masks
Title | High-resolution lightfield photography using two masks |
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Authors | |
Keywords | After-images Camera sensor Computational photography High resolution Imaging capabilities |
Issue Date | 2012 |
Publisher | Optical Society of America. The Journal's web site is located at http://www.opticsexpress.org |
Citation | Optics Express, 2012, v. 20 n. 10, p. 10971-10983 How to Cite? |
Abstract | A major theme of computational photography is the acquisition of lightfield, which opens up new imaging capabilities, such as focusing after image capture. However, to capture the lightfield, one normally has to sacrifice significant spatial resolution as compared to normal imaging for a fixed sensor size. In this work, we present a new design for lightfield acquisition, which allows for the capture of a higher resolution lightfield by using two attenuation masks. They are positioned at the aperture stop and the optical path respectively, so that the four-dimensional (4D) lightfield spectrum is encoded and sampled by a two-dimensional (2D) camera sensor in a single snapshot. Then, during post-processing, by exploiting the coherence embedded in a lightfield, we can retrieve the desired 4D lightfield with a higher resolution using inverse imaging. The performance of our proposed method is demonstrated with simulations based on actual lightfield datasets. © 2012 Optical Society of America. |
Persistent Identifier | http://hdl.handle.net/10722/155759 |
ISSN | 2023 Impact Factor: 3.2 2023 SCImago Journal Rankings: 0.998 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Xu, Z | en_US |
dc.contributor.author | Ke, J | en_US |
dc.contributor.author | Lam, EY | en_US |
dc.date.accessioned | 2012-08-08T08:35:12Z | - |
dc.date.available | 2012-08-08T08:35:12Z | - |
dc.date.issued | 2012 | en_US |
dc.identifier.citation | Optics Express, 2012, v. 20 n. 10, p. 10971-10983 | en_US |
dc.identifier.issn | 1094-4087 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/155759 | - |
dc.description.abstract | A major theme of computational photography is the acquisition of lightfield, which opens up new imaging capabilities, such as focusing after image capture. However, to capture the lightfield, one normally has to sacrifice significant spatial resolution as compared to normal imaging for a fixed sensor size. In this work, we present a new design for lightfield acquisition, which allows for the capture of a higher resolution lightfield by using two attenuation masks. They are positioned at the aperture stop and the optical path respectively, so that the four-dimensional (4D) lightfield spectrum is encoded and sampled by a two-dimensional (2D) camera sensor in a single snapshot. Then, during post-processing, by exploiting the coherence embedded in a lightfield, we can retrieve the desired 4D lightfield with a higher resolution using inverse imaging. The performance of our proposed method is demonstrated with simulations based on actual lightfield datasets. © 2012 Optical Society of America. | en_US |
dc.language | eng | en_US |
dc.publisher | Optical Society of America. The Journal's web site is located at http://www.opticsexpress.org | en_US |
dc.relation.ispartof | Optics Express | en_US |
dc.rights | This paper was published in [Optics Express] and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-10-10971]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. | - |
dc.subject | After-images | - |
dc.subject | Camera sensor | - |
dc.subject | Computational photography | - |
dc.subject | High resolution | - |
dc.subject | Imaging capabilities | - |
dc.title | High-resolution lightfield photography using two masks | en_US |
dc.type | Article | en_US |
dc.identifier.email | Ke, J: junke@eee.hku.hk | en_US |
dc.identifier.email | Lam, EY: elam@eee.hku.hk | - |
dc.identifier.authority | Lam, EY=rp00131 | en_US |
dc.description.nature | published_or_final_version | en_US |
dc.identifier.doi | 10.1364/OE.20.010971 | en_US |
dc.identifier.pmid | 22565720 | - |
dc.identifier.scopus | eid_2-s2.0-84861120126 | en_US |
dc.identifier.hkuros | 200968 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-84861120126&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 20 | en_US |
dc.identifier.issue | 10 | en_US |
dc.identifier.spage | 10971 | en_US |
dc.identifier.epage | 10983 | en_US |
dc.identifier.isi | WOS:000303879700059 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Lam, EY=7102890004 | en_US |
dc.identifier.scopusauthorid | Ke, J=9045258900 | en_US |
dc.identifier.scopusauthorid | Xu, Z=26640797900 | en_US |
dc.identifier.issnl | 1094-4087 | - |