A NOVEL ADAPTIVE SUBSPACE DISTORTION MEASUREMENT TECHNIQUE FOR IMAGE VECTOR QUANTIZATIO

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Detail(s)

Original languageEnglish
Title of host publication[Conference Record] GLOBECOM '92 - Communications for Global Users
Subtitle of host publicationIEEE
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages250-254
Volume1
ISBN (Print)0780306082, 9780780306080
Publication statusPublished - Nov 1992

Conference

Title1992 IEEE Global Telecommunications Conference: Communication for Global Users, GLOBECOM 1992
PlaceUnited States
CityOrlando
Period6 - 9 December 1992

Abstract

In this paper, a new adaptive subspace distortion measurement technique is proposed to further reduce the complexity of the tree-structured vector quantization (TS VQ). The Euclidean distortion is adaptively replaced by dimension reduced transform domain subspace distortions during the tree codebook generation process. To achieve good approximation of the Euclidean distortion, the dimensionality and basis of subspace distortions are selected based on the local statistics of the partition associated with each non-terminal node of the tree. Thus, substantial reductions on both computational complexity and memory requirement can be obtained. Experimental results show that exceptionally low subspace dimension can be used in multi-subspace TSVQ based on a fixed transform domain to obtain a similar performance as the conventional TSVQ or single subspace TSVQ. © 1992 IEEE.

Citation Format(s)

A NOVEL ADAPTIVE SUBSPACE DISTORTION MEASUREMENT TECHNIQUE FOR IMAGE VECTOR QUANTIZATIO. / PO, Lai-man; CHAN, Chok-ki.

[Conference Record] GLOBECOM '92 - Communications for Global Users: IEEE. Vol. 1 Institute of Electrical and Electronics Engineers Inc., 1992. p. 250-254 276483.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review