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Article: Noise in superresolution reconstruction

TitleNoise in superresolution reconstruction
Authors
KeywordsGaussian noise (electronic)
Image reconstruction
Optical systems
Photodetectors
High-resolution (HR) image
Issue Date2003
PublisherOptical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3
Citation
Optics Letters, 2003, v. 28 n. 22, p. 2234-2236 How to Cite?
AbstractRecently there has been a significant interest in reconstructing a high-resolution (HR) image based on a set of low-resolution (LR) images with relative displacement. These images are typically undersampled with respect to the image spectrum of a HR image. I show that, although ideally a resolution increase of N times is possible with N LR images, in a practical system noise is a limiting factor that increases substantially as we approach this theoretical superresolution limit. For one dimension and a special case with two LR images, I present an analytical result of the noise amplification as a function of their displacement. This is defined as a condition number of the superresolution system, with the associated definitions of a well-conditioned and ill-conditioned superresolution reconstruction system. © 2003 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/73943
ISSN
2015 Impact Factor: 3.04
2015 SCImago Journal Rankings: 2.397
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLam, EYen_HK
dc.date.accessioned2010-09-06T06:56:16Z-
dc.date.available2010-09-06T06:56:16Z-
dc.date.issued2003en_HK
dc.identifier.citationOptics Letters, 2003, v. 28 n. 22, p. 2234-2236en_HK
dc.identifier.issn0146-9592en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73943-
dc.description.abstractRecently there has been a significant interest in reconstructing a high-resolution (HR) image based on a set of low-resolution (LR) images with relative displacement. These images are typically undersampled with respect to the image spectrum of a HR image. I show that, although ideally a resolution increase of N times is possible with N LR images, in a practical system noise is a limiting factor that increases substantially as we approach this theoretical superresolution limit. For one dimension and a special case with two LR images, I present an analytical result of the noise amplification as a function of their displacement. This is defined as a condition number of the superresolution system, with the associated definitions of a well-conditioned and ill-conditioned superresolution reconstruction system. © 2003 Optical Society of America.en_HK
dc.languageengen_HK
dc.publisherOptical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3en_HK
dc.relation.ispartofOptics Lettersen_HK
dc.rightsOptics Letters. Copyright © Optical Society of America.en_HK
dc.subjectGaussian noise (electronic)-
dc.subjectImage reconstruction-
dc.subjectOptical systems-
dc.subjectPhotodetectors-
dc.subjectHigh-resolution (HR) image-
dc.titleNoise in superresolution reconstructionen_HK
dc.typeArticleen_HK
dc.identifier.emailLam, EY:elam@eee.hku.hken_HK
dc.identifier.authorityLam, EY=rp00131en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1364/OL.28.002234-
dc.identifier.pmid14649952-
dc.identifier.scopuseid_2-s2.0-0242493615en_HK
dc.identifier.hkuros88824en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0242493615&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume28en_HK
dc.identifier.issue22en_HK
dc.identifier.spage2234en_HK
dc.identifier.epage2236en_HK
dc.identifier.isiWOS:000186379100032-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLam, EY=7102890004en_HK

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