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Article: Integer lapped transforms and their applications to image coding

TitleInteger lapped transforms and their applications to image coding
Authors
Issue Date2002
PublisherIEEE.
Citation
Ieee Transactions On Image Processing, 2002, v. 11 n. 10, p. 1152-1159 How to Cite?
AbstractThis paper proposes new integer approximations of the lapped transforms, called the integer lapped transforms (ILT), and studies their applications to image coding. The ILT are derived from a set of orthogonal sinusoidal transforms having short integer coefficients, which can be implemented with simple integer arithmetic. By employing the same scaling constants in these integer sinusoidal transforms, integer versions of the lapped orthogonal transform (LOT), the lapped biorthogonal transform (LBT), and the hierarchical lapped biorthogonal transform (HLBT) are developed. The ILTs with 5-b integer coefficients are found to have similar coding gain (within 0.06 dB) and image coding performances as their real-valued counterparts. Furthermore, by representing these integer coefficients as sum of powers-of-two coefficients (SOPOT), multiplier-less lapped transforms with very low implementation complexity are obtained. In particular, the implementation of the eight-channel multiplier-less integer LOT (ILOT), LBT (ILBT), and HLBT (IHLBT) require 90 additions and 44 shifts, 98 additions and 59 shifts, and 70 additions and 38 shifts, respectively.
Persistent Identifierhttp://hdl.handle.net/10722/42939
ISSN
2015 Impact Factor: 3.735
2015 SCImago Journal Rankings: 2.727
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFong, WCen_HK
dc.contributor.authorChan, SCen_HK
dc.contributor.authorNallanathan, Aen_HK
dc.contributor.authorHo, KLen_HK
dc.date.accessioned2007-03-23T04:35:07Z-
dc.date.available2007-03-23T04:35:07Z-
dc.date.issued2002en_HK
dc.identifier.citationIeee Transactions On Image Processing, 2002, v. 11 n. 10, p. 1152-1159en_HK
dc.identifier.issn1057-7149en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42939-
dc.description.abstractThis paper proposes new integer approximations of the lapped transforms, called the integer lapped transforms (ILT), and studies their applications to image coding. The ILT are derived from a set of orthogonal sinusoidal transforms having short integer coefficients, which can be implemented with simple integer arithmetic. By employing the same scaling constants in these integer sinusoidal transforms, integer versions of the lapped orthogonal transform (LOT), the lapped biorthogonal transform (LBT), and the hierarchical lapped biorthogonal transform (HLBT) are developed. The ILTs with 5-b integer coefficients are found to have similar coding gain (within 0.06 dB) and image coding performances as their real-valued counterparts. Furthermore, by representing these integer coefficients as sum of powers-of-two coefficients (SOPOT), multiplier-less lapped transforms with very low implementation complexity are obtained. In particular, the implementation of the eight-channel multiplier-less integer LOT (ILOT), LBT (ILBT), and HLBT (IHLBT) require 90 additions and 44 shifts, 98 additions and 59 shifts, and 70 additions and 38 shifts, respectively.en_HK
dc.format.extent322312 bytes-
dc.format.extent28160 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Transactions on Image Processingen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.titleInteger lapped transforms and their applications to image codingen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1057-7149&volume=11&issue=10&spage=1152&epage=1159&date=2002&atitle=Integer+lapped+transforms+and+their+applications+to+image+codingen_HK
dc.identifier.emailChan, SC:scchan@eee.hku.hken_HK
dc.identifier.emailHo, KL:klho@eee.hku.hken_HK
dc.identifier.authorityChan, SC=rp00094en_HK
dc.identifier.authorityHo, KL=rp00117en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TIP.2002.804266en_HK
dc.identifier.scopuseid_2-s2.0-0036811825en_HK
dc.identifier.hkuros82292-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036811825&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.issue10en_HK
dc.identifier.spage1152en_HK
dc.identifier.epage1159en_HK
dc.identifier.isiWOS:000178786800003-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridFong, WC=7102816054en_HK
dc.identifier.scopusauthoridChan, SC=13310287100en_HK
dc.identifier.scopusauthoridNallanathan, A=6603561059en_HK
dc.identifier.scopusauthoridHo, KL=7403581592en_HK

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