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Article: Adaptive hierarchical vector quantization for image coding: new results

TitleAdaptive hierarchical vector quantization for image coding: new results
Authors
Keywordsvector quantization
index codebook
partial encoding
three-layer encoding
Issue Date1995
PublisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://www.spie.org/oe
Citation
Optical Engineering, 1995, v. 34 n. 10, p. 2912-2917 How to Cite?
AbstractAdaptive hierarchical algorithms of vector quantization (VQ) for image coding are proposed. First, the basic codebook is generated adaptively using adaptive VQ, then the quadruplets of codes/indices in the so-called zigzag order are coded into higher level (second and third levels) codes by creating the second- and third-level index codebooks to reduce the redundancy presented in the codes. Partially matched quadruplets are also encoded in the second and third layers using index codebooks along with corresponding correction schemes. The third-layer encoding achieves a better compression ratio than a two-layer encoding scheme, which was shown to be optimal when partial encoding was not adopted. This three-layer coding scheme achieves better compression with no extra distortion and little extra computation. Experiments show encouraging results.
Persistent Identifierhttp://hdl.handle.net/10722/47097
ISSN
2015 Impact Factor: 0.984
2015 SCImago Journal Rankings: 0.485
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhong, Shengen_HK
dc.contributor.authorChin, Francisen_HK
dc.contributor.authorShi, Qing Yunen_HK
dc.date.accessioned2007-10-30T07:07:04Z-
dc.date.available2007-10-30T07:07:04Z-
dc.date.issued1995en_HK
dc.identifier.citationOptical Engineering, 1995, v. 34 n. 10, p. 2912-2917en_HK
dc.identifier.issn0091-3286en_HK
dc.identifier.urihttp://hdl.handle.net/10722/47097-
dc.description.abstractAdaptive hierarchical algorithms of vector quantization (VQ) for image coding are proposed. First, the basic codebook is generated adaptively using adaptive VQ, then the quadruplets of codes/indices in the so-called zigzag order are coded into higher level (second and third levels) codes by creating the second- and third-level index codebooks to reduce the redundancy presented in the codes. Partially matched quadruplets are also encoded in the second and third layers using index codebooks along with corresponding correction schemes. The third-layer encoding achieves a better compression ratio than a two-layer encoding scheme, which was shown to be optimal when partial encoding was not adopted. This three-layer coding scheme achieves better compression with no extra distortion and little extra computation. Experiments show encouraging results.en_HK
dc.format.extent398132 bytes-
dc.format.extent5052 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://www.spie.org/oeen_HK
dc.relation.ispartofOptical Engineeringen_HK
dc.rightsOptical Engineering. Copyright © S P I E - International Society for Optical Engineering.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsCopyright 1995 Society of Photo-Optical Instrumentation Engineers. This paper was published in Optical Engineering, 1995, v. 34 n. 10, p. 2912-2917 and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.en_HK
dc.subjectvector quantizationen_HK
dc.subjectindex codebooken_HK
dc.subjectpartial encodingen_HK
dc.subjectthree-layer encodingen_HK
dc.titleAdaptive hierarchical vector quantization for image coding: new resultsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0091-3286&volume=34&issue=10&spage=2912&epage=2917&date=1995&atitle=Adaptive+hierarchical+vector+quantization+for+image+coding:+new+resultsen_HK
dc.identifier.emailChin, Francis:chin@cs.hku.hken_HK
dc.identifier.authorityChin, Francis=rp00105en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1117/12.210738en_HK
dc.identifier.scopuseid_2-s2.0-0029512062en_HK
dc.identifier.hkuros8378-
dc.identifier.volume34en_HK
dc.identifier.issue10en_HK
dc.identifier.spage2912en_HK
dc.identifier.epage2917en_HK
dc.identifier.isiWOS:A1995RZ70800012-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridZhong, Sheng=55223827800en_HK
dc.identifier.scopusauthoridChin, Francis=7005101915en_HK
dc.identifier.scopusauthoridShi, Qing Yun=7402698666en_HK

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