NDLI: Fast entropy-constrained vector quantizer design

Content Provider	IEEE Xplore Digital Library
Author	Cardinal, J.
Copyright Year	1999
Description	Author affiliation: Dept. of Comput. Sci., Brussels Free Univ., Belgium (Cardinal, J.)
Abstract	Vector quantization is the process of encoding vector data as an index to a dictionary-or codebook-of representative vectors. Entropy-constrained vector quantizers (ECVQ) explicitly control the entropy of the output, and are superior to simple nearest-neighbor vector quantizers in terms of rate-distortion performances. ECVQ codebook design based on empirical data involves an expensive training phase in which a Lagrangian cost measure has to be minimized over the set of codebook vectors. In this paper, we describe two new general elimination rules allowing significant acceleration in the codebook design process. These rules use features of the codebook vectors in order to discard most of them as fast as possible during the search. Experimental results are presented on image block data. They show that those new rules perform slightly better than the previously known methods.
Starting Page	500
Ending Page	503
File Size	341185
Page Count	4
File Format	PDF
ISBN	0769504469
DOI	10.1109/ICIIS.1999.810338
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer science Costs Dictionaries Phase measurement Vector quantization Rate-distortion Clustering algorithms Entropy Encoding Books
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Libarray of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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